Contact

Phone: 330-972-2581
Room: PEAC 417
E-mail: rweiss@uakron.edu

Education/Experience

• Ph.D. Chem. Eng., University of Massachusetts, Amherst (1976)
• B.S. Chem. Eng., Northwestern University (1972)

Experience

• 1975-77 Research Engineer, Exxon Chemical Company
• 1977-81 Staff Engineer, Exxon Res. and Eng. Co.
• 1979 Visiting Professor, Stevens Inst. Tech.
• 1981-86 Associate Professor, Univ. Connecticut
• 1984-91 Director, Polymer Program, University of Connecticut
• 1985-89 Assistant Director, Inst. of Materials Science, Univ. of Conn.
• 1986-09 Professor, University of Connecticut
• 1987-92 Director, Liquid Crystalline Polymer Research Center, UConn
• 1987-88 Academic Visitor, Imperial College (London)
• 1989-95 Associate Director, Institute of Materials Science, UConn
• 1994-95 Academic Visitor, Imperial College (London)
• 1998-02 A. T. DiBenedetto Distinguished Professor of Engineering, UConn.
• 2000- Adjunct Professor, Dept. of Materials Science and Eng., Univ. of Florida
• 2002-09 Distinguished Professor of Engineering, UConn.
• 2002-05 Director, Polymer Program, University of Connecticut
• 2003-09 Board of Trustees Distinguished Professor, University of Connecticut
• 2007-09 UTC Professor of Advanced Materials and Processing, Univ. of Connecticut
• 2009- Hezzleton E. Simmons Professor, Dept. of Polym. Eng., Univ. of Akron

Professional Affiliations

• American Physical Society (Fellow)
• American Chemical Society (Fellow, Div. of Polymeric Materials: Science and Engineering)
• Society of Plastics Engineers (Fellow)
• North American Thermal Analysis Society (Fellow)
• Society of Rheology
• Materials Research Society

Honors/Awards

• Tau Beta Pi
• Phi Kappa Phi
• Fulbright Scholar (Imperial College) 1987-88
• Connecticut Academy of Science and Engineering, 1990 -
• Advisory Board, Petroleum Research Fund, 1991 - 1994
• Chairman, Ion-Containing Polymer Gordon Res. Conf., 1991
• Education Award, Soc. of Plastics Engineers, 2000
• Research Award, Soc. of Plastics Engineers, 2002
• AAUP Research Excellence Award (University of Connecticut), 2003
• Engineering and Technology Award, Soc. of Plastics Engineers, 2003
• Director's Award for Faculty Excellence, Polymer Program, Univ. of Connecticut, 2005
• Institute of Materials Science (University of Connecticut) Distinguished Lecturer, 2008
• International Award, Soc. of Plastics Engineers 2008

Editorial Positions

• Advisory Board, ACS Books 1988 - 1992
• Associate Editor Polymer Engineering and Science 1987-1996
• Editor-in-Chief, Polymer Engineering and Science 1996-present
• Associate Editor Polymer Composites 1987-97
• Editor-in-Chief, Polymer Composites, 1997-present
• International Advisory Board, Polymers and Polymer Composites, 1996-present
• Editorial Advisory Board, J. Appl. Polym. Sci., 2001-present
• Editorial Advisory Board, Macromolecules, 2004-2008
• Editorial Board, Chemistry Central Journal, 2006-present

Research

Manufacture of Controlled Microstructure Proton Exchange Membranes
The objective of this research is to solution and melt processing to control the microstructure of multicomponent, multiphase polymer membranes and to understand the effect of the controlled microstructure on the transport and mechanical properties of a PEM. The polymer systems of interest include polymer blends, block copolymers and polymer nanocomposites. Methods are being developed for manufacturing membranes while simultaneously orienting a conductive phase in the direction of proton transport using external electrical and magnetic fields. Controlling the ionic micro- or nano-phase structure allows the optimization of the membrane's conductivity, durability and resistance to fuel crossover.

Functional Polymers from Renewable Resources
This research involves the synthesis and characterization of ionomers from renewable and sustainable resources. Current work is focused on ionomers based on lactic acid, which is derived from corn, and itaconic anhydride (ITA), which is derived from citric acid. One approach is to use preformed polymers, such as poly(lactic acid) and incorporate a carboxylic acid or sulfonic acid species randomly into the chain or specifically at the chain ends (telechelic polymer) using melt transesterification reactions. These materials materials will be assessed for a variety of applications - e.g., hydrogels, compatibilizers, coatings and adhesives.

Shape Memory Elastomers
Shape memory polymers (SMP) are being developed from compounds of a fatty acid or fatty acid salt (FAS) combined with an ionomer, such as sulfonated poly{ethylene-r-propylene-r-(5-ethylidene-2-norbornene) ionomer (SEPDM) The ionic interactions within the ionomer phase provid a permanent crosslinked network due to the extremely long relaxation times of the physical crosslinks produced from nanophase separation of ion-rich domains. The novelty of this type of SMP is that the fatty acid crystals form the temporary network, due to strong intermolecular interactions between the metal sulfonate groups of the ionomer and the carboxylate groups of the FAS. The surprising result is that the ionic or dipolar interactions between the FAS and the ionomer is strong enough to allow the dispersed FAS crystals to support stress, thus providing a robust physical crosslink. The advantage of this approach for making a SMP is that the critical temperature for fixing the temporary network or allowing shape recovery can be easily varied by varying the fixing temperature (in this case, the melting point of the FAS) by judicious choice of the FAS - thus, providing a family of SMPs with a single host elastomer.

Rheology of Ionomers
Ionomers are a genre of associating polymers, i.e., polymers with strong attractive intermolecular forces. The strength and relaxation times of the associations in ionomers significantly influence their fluid dynamics. To what extent is dependent on the nature of the ionic groups, the counterion used to neutralize the fixed charges, the concentration of such charges and the time, temperature and amplitude of the deformation of these fluids. This research focuses on the rheological behavior of lightly sulfonated, low molecular weight polystyrene ionomers. The objectives of this research are to 1) develop an understanding of how the nature of the ionomer counterion affects the rheology, specifically the relaxation times of the chain and the ionic associations; 2) how is elasticity developed in unentangled ionomers, 3) what is the origin of shear-thickening that is observed in ionomer melts and 4) how can one engineer the rheology of ionomer melts by the addition of low molecular weight additives. The research includes the synthesis and characterization of ionomers, steady state and dynamic shear rheology of the ionomer melts and real-time, small angle neutron scattering (SANS) evaluation of the melts during shear deformation.

Controlling Surface Morphology of Thin Films
Wettability of surfaces plays an important role in many biological and industrial applications. Non-wettable surfaces have important applications, for example in self-cleaning, anti-sticking, stain resistance and anti-contamination surfaces in technologies such as biomedical, transportation, textiles, electronics and coatings. We recently discovered a facile method for introducing nano- and micro-scale roughness during the manufacture of thin polymer films. The goal of this research is understand the mechanism of the roughness formation, which is thought to be a spinodal decomposition of the surface during solvent evaporation. The research involves experimental, theoretical, and computational components. Applications of this work that are being separately studied include manufacturing methods of forming superhydrophobic surfaces by solvent casting and the development of scaffolds for tissue engineering.

Books and Monographs

1. Weiss, R. A. 1975. Preparation and Characterization of Phosphonated Polyethylene. Ph. D. Dissertation. University of Massachusetts.

2. Utracki, L. A. and R. A. Weiss 1989. Multiphase Polymers: Blends and Ionomers.ACS Symposium Ser., 395, ACS Books, Washington, DC.

3. Weiss, R. A. and C. Ober. 1990. Liquid Crystalline Polymers. ACS Symp. Ser. 435, ACS Books, Washington, DC.

Reviewed Journal Articles and Book Chapters

1. Tirrell, M. V., G. H. Pearson, R. A. Weiss, and R. L. Lawrence. 1975. Analysis of caprolactam polymerization. Polym. Eng. Sci. 16: 386 – 393. PDF

2. Weiss, R. A., R. W. Lenz and W. J. MacKnight. 1977. Properties of polyethylene modified with phosphonate side groups. I. Thermal and mechanical properties. J. Polym. Sci., Phys. Ed. 15:1409. PDF

3. Weiss, R. A., R. W. Lenz and W. J. MacKnight. 1978. Properties of polyethylene modified with phosphonate side groups. II. Dynamic mechanical properties. J. Polym. Sci., Phys. Ed. 16: 1101-13. PDF

4. Weiss, R. A., and R. W. Lenz. 1979. Properties of polyethylene modified with phosphonate side groups. III. Hydration characteristics and water permeability, J. Appl. Polym. Sci., 23: 2443-2482. PDF

5. Weiss, R. A., R. D. Lundberg and A. Werner. 1980. The synthesis of sulfonated polymers by free radical copolymerization. (Poly(butadiene-co-sodium styrene sulfonate). J. Polym. Sci., Chem. Ed. 18: 3427-3439. PDF

6. Weiss, R. A. 1980. Phosphonate ionomers based on phosphonylated ethylene-propylene copolymer. J. Polym. Sci., Chem. Ed. 18: 2887-2899. PDF

7. Weiss, R. A., and P. K. Agarwal. 1981. The influence of intermolecular interactions on the melt rheology of a propylene-acrylic acid copolymer and its salts. J. Appl. Polym. Sci. 26: 449-462. PDF

8. Weiss, R. A. 1981. Mechanical properties of polypropylene reinforced with short graphite fibers. Polym. Composites 2: 95-101. PDF

9. Weiss, R. A. 1981. Strength improvement of short graphite fiber-reinforced polypropylene. Polym. Composites 2: 89-94. PDF

10. Weiss, R. A. 1982. The effect of aging on the thermal behavior of sulfonated polystyrene. J. Polym. Sci., Polym. Phys. Ed. 20: 65-72. PDF

11. Weiss, R. A. 1982. The role of zinc stearate crystallization in the reinforcement of sulfonated EPDM. in Thermal Analysis, B. Miller, Ed., Wiley, NY, 1982, p. 1010.

12. Peiffer, D. G., R. A. Weiss, and R. D. Lundberg. 1982. Microphase separation in sulfonated polystyrene ionomers. J. Polym. Sci., Polym. Phys. Ed. 20: 1503-1509. PDF

13. Huh, W., R. A. Weiss, and L. Nicolais. 1983. Thermal and rheological properties of blends of polystyrene and thermotropic liquid crystals. Polym. Eng. Sci. 23: 779-783. PDF

14. Weiss, R. A., J. Lefelar, and H. Toriumi. 1983. The influence of thermal history on the microstructure of sulfonated polystyrene ionomers. J. Polym. Sci., Polym. Letters. Ed., 21: 661-667.

15. Weiss, R. A. 1983. Time dependent characteristics of sulfonated EPDM containing zinc stearate I. thermal behavior. J. Appl. Polym. Sci., 28: 3321-3332. PDF

16. Weiss, R. A., S. H. Shaw, and M. T. Shaw. 1984. The characteristics of water in treed crosslinked polyethylene. Analytical calorimetry, Vol. 6, J. F. Johnson and P. S. Gill, ed., Plenum Press, 265-275.

17. Lefelar, J. A. and R. A. Weiss. 1984. Concentration and counterion dependence of cluster formation in sulfonated polystyrene. Macromolecules, 17: 1145-1148. PDF

18. Weiss, R. A., P. K. Agarwal, and R. D. Lundberg. 1984. The control of ionic interactions in sulfonated polystyrene ionomers by using alkyl-substituted ammonium counterions, J. Appl. Polym. Sci. 29:2719-273 PDF

19. Toriumi, H., R. A. Weiss, and H. A. Frank, 1984. Electron spin resonance studies of ionic interactions in sulfonated polystyrene manganese (II) salts., Macromolecules. 17: 2104-2107. PDF

20. Weiss, R. A., W. Huh, and L. Nicolais. 1984. Blends of polystyrene and thermotropic liquid crystals - phase relations and rheological properties. in Polymer Processing of Properties, G. Astarita and L. Nicolais, eds., Plenum Press, NY, 1984, p. 279.

21. Weiss, R. A., S. R. Turner, and R. D. Lundberg. 1985. Sulfonated polystyrene ionomers prepared by emulsion copolymerization of styrene and sodium styrene sulfonate. J. Polym. Sci., Polym. Chem. Ed., 23: 525-533. PDF

22. Turner, S. R., R. A. Weiss, and R. D. Lundberg, 1985. The emulsion copolymerization of styrene and sodium styrene sulfonate. J. Polym. Sci., Polym. Chem. Ed. 23: 535-548. PDF

23. Weiss, R. A., R. D. Lundberg, and S. R. Turner. 1985. Comparisons of styrene ionomers prepared by sulfonating polystyrene and copolymerizing styrene with styrene sulfonate. J. Polym. Sci. Polym. Chem. Ed., 23: 549-568. PDF

24. Bandyopadhayay, P. K., M. T. Shaw, and R. A. Weiss, 1985. Detection and analysis of aging and degradation of polyolefins: a review of methodologies. Polym. Plast. Techn. Eng., 24: 187-239.

25. Peiffer, D. G., B. L. Hager, R. A. Weiss, P. K. Agarwal, and R. D. Lundberg. 1985. Far-IR studies of microphase separation in sulfonated ionomers. J. Polym. Sci., Polym. Phys. Ed. 23: 1869-1881. PDF

26. Weiss, R. A. and J. A. Lefelar. 1986. The influence of thermal history on the small angle x-ray scattering of sulfonated polystyrene ionomers. Polymer, 27: 3-10.

27. Weiss, R. A., W. J. MacKnight, R. D. Lundberg, K. A. Mauritz, C. Thies, and D. A. Brant. 1986. Ion-containing polymers and their applications. in Coulombic Interacting in Macromolecular Systems, A Eisenberg and F. E. Bailey, Eds., ACS Symposium Series, American Chemical Society 302:2-19.

28. Fitzgerald, J. J. and R. A. Weiss. 1986. Spectroscopic studies of the effects of solvents on the cation-anion and cation-cation interactions in sulfonated polystyrene ionomers. in Coulombic Interactions in Macromolecular Systems, A. Eisenberg and F. E. Bailey, Eds. ACS Symposium Series. American Chemical Society. 302:35-53.

29. Fitzgerald, J. J., Daesik Kim and R. A. Weiss. 1986. The effects of diluents on the ionic interactions in sulfonated polystyrene ionomers. J. Polym. Sci., Polym. Letters Ed., 24:263-268. .PDF

30. Weiss, R. A., J. J. Fitzgerald, H. A. Frank, and B. W. Chadwick. 1986. ESR evidence for specific solvation effects in ionomer solutions. Macromolecules, 19: 2085-2087. PDF

31. Weiss, R. A., W. Huh, and L. Nicolais. 1987. Novel reinforced polymers based on blends of polystyrene and a thermotropic liquid crystalline polymer. Polym. Eng. Sci. 27:684-691. PDF

32. Weiss, R. A., and J. J. Fitzgerald. 1987. Effect of solvents on structure and properties of ionomers. in Structure and Properties of Ionomers, A. Eisenberg and M. Pineri, Eds. Reidel Publ. pp. 361-376.

33. Galambos, A. F., W. B. Stockton, J. T. Koberstein, A. Sen, R. A. Weiss, and T. P. Russell. 1987. Observation of cluster formation in an ionomer. Macromolecules. 20: 3091-3094. PDF

34. Weiss, R. A., W. Huh, and L. Nicolais. 1988. Rheology and properties of self-reinforcing polymer-liquid crystal polymer blends in High Modulus Polymers, A. Zachariades and R. Porter, Eds., Marcel Dekker, pp. 145-169.

35. Fitzgerald, J. J., and R. A. Weiss. 1988. Synthesis, properties, and structure of sulfonate ionomers. J. Macromol. Sci., Rev. Macromol. Chem. Phys. C28(l): 99-185.

36. Chien, M. C., and R. A. Weiss. 1988. Strain induced crystallization of PEEK. Polym. Eng. Sci. 28: 6-12. PDF

37. Garton, A., S. Wang, and R. A. Weiss. 1988. FTIR studies of ionic interactions in blends. J. Polym. Sci., Polym. Phys. Ed. 26: 1545-1548. PDF

38. Register, R. A., A. Sen, R. A. Weiss, and S. L. Cooper. 1989. Effect of thermal treatment on cation local structure in manganese -- neutralized sulfonated polystyrene ionomers, Macromolecules, 22:2224-2229. PDF

39. Register, R. A., A. Sen, R. A. Weiss, C. Li, and S. L. Cooper. 1989. Morphology and cation local structure in a blend of copper - Neutralized carboxyl terminated polybutadiene and poly(styrene-4-vinylpyridine). J. Polym., Sci., Phys. Ed., 27:1911-1925. PDF

40. Sen, A., R. A. Weiss, and A. Garton, 1989. Grafted-block copolymers formed by transition metal coordination of styrene-and-butadiene-based polymers, in Multiphase Polymers: Blends and Ionomers, L. A. Utracki and R. A. Weiss, eds., ACS Symp Ser. 395:353-369.

41. Weiss, R. A. and H. Stamato, 1989. Development of an ionomer tracer for extruder residence time distribution experiments. Polym. Eng. Sci. 29: 134-140. PDF

42. Utracki, L. A., D. J. Walsh and R. A. Weiss, 1989. Polymer alloys, blends and ionomers: An overview. in Multiphase Polymers; Blends and Ionomers, L. A. Utracki and R. A. Weiss, eds., ACS Symp Ser. 395:1-37.

43. Weiss, R. A., A. Kohli, and N. Chung, 1989. The effect of deformation history on the morphology of blends of polycarbonate and a liquid crystalline polymer. Polym. Eng. Sci. 29: 573-580. PDF

44. Apicella, A., L. Nicodemo, L. Nicolais, and R. A. Weiss. 1989. Dimensional Stability of Thermoplastic-Polymeric Liquid Crystal Blends. Handbook of Polymer Science and Technology, Vol. 2: Performance Properties of Plastics and Elastomers, N. P. Chermisinoff, Ed., Marcel Dekker, Inc., Chapter 20.

45. Weiss, R. A., C. Beretta, S. Sasongko, and A. Garton. 1990. Miscibility enhancement of polystyrene and poly(alkylene oxide) blends using specific intermolecular interactions, J. Appl. Polym. Sci. 41: 91-103 PDF

46. Hindawi, I., J. S. Higgins, A. F. Galambos, and R. A. Weiss. 1990. Flow-induced mixing of blends of poly(ethylene-vinyl acetate) and solution chlorinated polyethylene. Macromolecules, 23: 670-674. PDF

47. Fitzgerald, J. J. and R. A. Weiss. 1990. The effects of low molar mass diluents on the microstructure of ionomers. J. Polym. Sci., Polym. Phys. Ed., 28: 1719-1736. PDF

48. Dutta, D., H. Fruitwala, A. Kohli, and R. A. Weiss. 1990. Polymer blends containing liquid crystals. A Review. Polym. Eng. Sci., 30: 1005-1018. PDF

49. Weiss, R. A., A. Sen, L. A. Pottick and C. L. Willis. 1990. Block copolymer ionomers. Thermoplastic elastomers possessing two distinct physical networks. Polymer Communications, 31, 220-224.

50. Weiss, R. A., J. J. Fitzgerald and D. Kim. 1991. Viscoelastic behavior of lightly sulfonated polystyrene ionomers, Macromolecules, 24: 1071-1076. PDF

51. Weiss, R. A., J. J. Fitzgerald and D. Kim. 1991. Viscoelastic behavior of plasticized sulfonated polystyrene ionomers, Macromolecules. 24: 1064-1070. PDF

52. Weiss, R. A., A. Sen, L. A. Pottick and C. L. Willis. 1991. Block copolymer ionomers: I. Synthesis and properties of sulfonated poly(styrene- ethylene/butylene- styrene). Polymer. 32: 1867-1874.

53. Weiss, R. A., A. Sen, L. A. Pottick and C. L. Willis. 1991. Block copolymer ionomers: II. Mechanical and viscoelastic properties of sulfonated poly(styrene-ethylene/ butylene -styrene). Polymer. 32: 2785-2792.

54. Cimecioglu, A. L., H. Fruitwala and R. A. Weiss. 1990. Synthesis and properties of a thermotropic copolyester based on 4-hyroxyacetophenone azine. Makromol. Chemie. 191: 2329-2339.

55. Sasongko, S., R. A. Weiss and R. Jérôme. 1991. Graft copolymers of polystyrene and polyisoprene prepared using complexation. Macromolecules, 24: 2271-2277. PDF

56. Skovby, M. H. B., J. Kops, and R. A. Weiss. 1991. Studies on a Diphenylether Modified Poly(phenyl-1,4-phenylene terephthalate) Liquid Crystalline Polymer and its Blends with Polycarbonate and Polysulfone. Polym. Eng. and Sci., 31: 954-962.

57. Ober, C. K., and R. A. Weiss. 1990. Current Topics in Liquid Crystalline Polymers. In Liquid Crystalline Polymers. R. A. Weiss and C. K. Ober, Eds., ACS Symp. Ser. No. 435, Wash. D.C.

58. Pawlikowski, G. T., R. A. Weiss, and S. J. Huang. 1990. Synthesis and Characterization of Segmented Copolymers of a Methylated Polyamide and a Thermotropic Liquid Crystalline Polyester. In Polymer Based Molecular Composites, Materials Research Society Symp. Proc. 171, 299.

59. Dutta, D. and R. A. Weiss. 1991. Rheological Behavior of Liquid Crystalline Polymer/Polymer Blends. In Polymers as Rheology Modifiers, D. N. Schulz and J. E. Glass, Eds., ACS Symp. Ser., 462, Wash. D.C., pp. 144-154.

60. Weiss, R. A., J. J. Fitzgerald, and D. Kim. 1991. Viscoelastic Behavior of Plasticized Sulfonated Polystyrene Ionomers. In Properties of Ionic Polymers: Natural and Synthetic, L. Salmen and M. Htun, Eds., STFI-Meddelande A-989, Stockholm, 1991, p. 187.

61. Pawlikowski, G. T., D. Dutta and R. A. Weiss, 1991. Molecular Composites and Self-Reinforced Liquid Crystalline Polymer Blends, Ann. Rev. Mater. Sci., 21: 159-184.

62. Lu, X., and R. A. Weiss. 1991. Development of Miscible Blends of Polyamide-6 and Manganese Sulfonated Polystyrene Using Specific Interactions. Macromolecules, 24: 4381-4385.

63. Zhang, B., and R. A. Weiss. 1992 . Liquid Crystalline Ionomers. I. Main-Chain Liquid Crystalline Polymer Containing Pendant Sulfonate Groups. J. Polym. Sci., Part A: Polym. Chem., 30: 91-97.

64. Lu, X., and R. A. Weiss. 1991. Solution Behavior of Lightly Sulfonated Polystyrene and Poly(styrene-co-4-vinylpyridine) Complexes in Dimethylformamide. Macromolecules, 24: 5763-5768.

65. Lu, X. and R. A. Weiss. 1991. Miscibility Enhancement of Polymer Blends by Specific Interactions. Mat. Res. Soc., Proc. 215: 29-35.

66. Sullivan, M. J., and R. A. Weiss. 1992. Characterization of Blends of an Amorphous Polyamide with Lightly Sulfonated Polystyrene Ionomers. Polym. Eng. Sci., 32: 517-523.

67. Hindawi, I. A., J. S. Higgins, and R. A. Weiss. 1992. Flow Induced Mixing and Demixing in Polymer Blends. Polymer, 33: 2520-2529.

68. Wu, R., M. T. Shaw, and R. A. Weiss. 1992. Flow Induced Phase Changes in Polystyrene/ Poly(isobutylene) Blends. J. Rheol., 36:1605 -1623.

69. Zhang, B., and R. A. Weiss. 1992. Liquid Crystalline Ionomers: 2. Synthesis and Characterization of a Main-Chain Liquid Crystalline Polymer Containing Terminal Sulfonate Groups. J. Polym. Sci., Part A: Polym. Chem. Ed., 30: 989-996.

70. Cimecioglu, A., and R. A. Weiss. 1992. Synthesis and Properties of Polyamides of 3,3'-Dimenthylnaphthidine and its Model Compounds, J. Polym. Sci., Part A: Polym. Chem., 30: 1051-1060.

71. Lu, X., and R. A. Weiss. 1992. Relationship Between the Glass Transition Temperature and the Chi-Interaction Parameter for Miscible Polymer Blends. Macromolecules, 25: 3242-3246. PDF

72. Cimecioglu, A., and R. A. Weiss. 1992. The Synthesis of a Mesogenic Poly(azine-ether) by Polyetherification Via Cesium Diphenoxides and a,w-Dibromoalkanes. J. Polym. Sci., Part A: Polym. Chem., 30: 1355-1361.

73. Lu, X., and R. A. Weiss. 1992. Specific Interactions and Ionic Aggregation in Miscible Blends of Nylon 6 and Zinc Sulfonated Polystyrene Ionomer, Macromolecules, 25: 6185-6189. PDF

74. Cimecioglu, A. L., and R. A. Weiss. 1992. Liquid Crystalline Polyethers and Copolyethers of 4-Hydroxyacetophenone Azine with a Homologous Series of Flexible Methylene Spacers, Makromol. Chemie, 193: 1867-1880.

75. Dutta, D., R. A. Weiss, and K. Kristal. 1992. Blends Containing Liquid Crystalline Polymers: Preparation and Properties of Melt-Drawn Fibers, Unidirectional Prepregs and Composite Laminates. Polymer Composites, 13: 394-401.

76. Arrighi, V., J. S. Higgins, R. A. Weiss, and A. L. Cimecioglu. 1992. A Small Angle Neutron Scattering Study of a Semiflexible Main-Chain Liquid Crystalline Copolyester. Macromolecules, 25: 5297-5305. PDF

77. Abis, J., V. Arrighi, A. L. Cimecioglu, J. S. Higgins, and R. A. Weiss. 1993. Phase Behaviour and Orientational Order of a Main-Chain Nematic Polyester: A Combined SANS and NMR Study. European Polym. J., 29: 175-181.

78. Ober, C. K., and R. A. Weiss. 1992. Liquid Crystalline Polymers. Condensed Matter News, 1: 20-26.

79. Dutta, D., R. A. Weiss, and K. Kristal. 1993. Liquid Crystalline Polymer/Fluoro-polymer Blends: Preparation and Properties of Unidirectional Prepregs and Composite Laminates. Polym. Eng. Sci., 33: 838-844.

80. Weiss, R. A., L. Shao, and R. D. Lundberg. 1992. Melt Processable, Polypeptide/ Ionomer Molecular Composites. Macromolecules, 25: 6370-6372. PDF

81. Lu, X., and R. A. Weiss. 1993. Morphology and Phase Behavior of Blends of a Styrenic Block Copolymer Ionomer and Poly(caprolactone). Macromolecules, 26: 3615-3622. PDF

82. Lu, X., W. P. Steckle and R. A. Weiss. 1993. Ionic Aggregation in a Block Copolymer Ionomer. Macromolecules, 26: 5876-5884. PDF

83. Kwei, T.K., Y.K. Dai, X. Lu and R. A. Weiss. 1993. Solid-State NMR Analysis of Blends of Nylon 6 and Zinc Salts of Sulfonated Polystyrene Ionomers. Macromolecules, 26: 6583-6588. PDF

84. Lu, X., W. P. Steckle and R. A. Weiss. 1993. Morphological Studies of a Triblock Copolymer Ionomer by Small Angle X-Ray Scattering. Macromolecules, 26: 6525-6530. PDF

85. Arrighi, V., J. S. Higgins, L. Abis, A. L. Cimecioglu, and R. A. Weiss. 1994. Characterization of Ordering in a Main-Chain Liquid Crystalline Polymer by Small Angle Neutron Scattering and NMR. Macromol. Reports, A31 (Suppls. 6&7): 1101-1108.

86. Weiss, R. A. and X. Lu. 1994. Phase Behavior of Blends of Nylon 6 and Lightly Sulfonated Polystyrene Ionomers., Polymer, 35, 1963 - 1969. PDF

87. Weiss, R. A. 1994. Glass Transition(s) of Ionomers. in Assignment of the Glass Transition, R. J. Seyler, Ed., ASTM STP 1249: 214 - 225.

88. Chen, Z. J., R.-J. Wu, M. T. Shaw, R. A. Weiss, J. S. Higgins and M. Fernandez, 1995. Rheo-Optical Studies of Phase Transitions of Polymer Blends Undergoing Simple Shear Flow, Polym. Eng. Sci., 35: 92-99.

89. Wu. R.-J., M. T. Shaw and R. A. Weiss. 1995. A New Rheo-Light-Scattering Instrument for the Study of the Phase Behavior of Polymer Blends Under Simple-Shear Flow. Rev. Sci. Instr., 66: 2914-2921. PDF

90. Lu, X., and R. A. Weiss. 1995. Phase Behavior and Specific Interactions of Poly(ethylene glycol)/Poly(acrylic acid) Blends: Effect of Neutralization, Macromolecules. 28: 3022-3029. PDF

91. Rajagopolan, P., J.-S. Kim, H. P. Brack, X. Lu, A. Eisenberg, R. A. Weiss and W. M. Risen. 1995. Molecular Interpretation of Miscibility in Polyamide-6 Blends with Alkali Ionomers of Sulfonated Polystyrene. J. Polym. Sci., Polym. Phys. Ed., 33: 495-503.

92. Sullivan, M. J., and R. A. Weiss. 1994. Novel High Acid Ionomer for Golf Ball Cover Applications. in Science and Golf II, A. J. Cochran and R. R. Farrally, Eds., E & FN Spon Publ., London. pp. 383-389.

93. Dutta, D., R. A. Weiss and J. He. 1996. Compatibilization of Blends Containing Thermotropic Liquid Crystalline Polymers With Sulfonate Ionomers. Polymer. 37: 429-435. PDF

94. Del Nobile, M. A., G. Mensitieri, L. Nicolais and R. A. Weiss. 1995. Gas Transport Through Ethylene-Acrylic Acid Ionomers. J. Polym. Sci., Polym. Phys. Ed., 33: 1269-1280.

95. Chen, Z. J., M. T. Shaw, and R. A. Weiss. 1995. Explanation of "Dark-streak" Light Scattering Patterns and Shear-induced Structure Development of Phase-Separated Polymer Blends. Macromolecules, 28: 648-650. PDF

96. Lu, X., W. P. Steckle, Jr.; B. Hsiao and R. A. Weiss. 1995 . Thermally Induced Microstructure Transitions in a Block Copolymer Ionomer. Macromolecules, 28: 2831-2839. PDF

97. Hagen, R., and R. A. Weiss. 1995. Assessment of Time-Temperature Superposition of Linear Viscoelastic Behavior of Strongly Interacting Polymer Blends: N-Methylated Nylon 2,10 and Lightly Sulfonated Polystyrene Ionomers, Polymer, 36: 4657-4664. PDF

98. Chakrabarty, K., P. Shao and R. A. Weiss. 1997. Solution Properties of Ionomers. In Ionomers: Synthesis, Structure, Properties and Applications, K. A. Mauritz, G. L. Wilkes and M. R. Tant, Eds., Blackie Academic Press, pp 158 - 207.

99. Chen, Z.J., N.G. Remediakis, M.T. Shaw and R. A. Weiss. 1995. The Effects of Flow on the Structure and Phase Behavior of Polymer Blends. In Flow-Induced Structure in Polymers. A. Nakatani and M. Dadmon, Eds., ACS Symp. Ser.No. 597: 153-168

100. Arrighi, V., J. S. Higgins, L. Abis and R. A. Weiss. 1996. Characterization of a Main-Chain Semiflexible Liquid Crystalline Polymer: Degree of Orientational Order. Polymer, 17: 141-148. PDF

101. Cimecioglu, A. L., and R. A. Weiss. 1995. Aromatic Polyamides of 3,8-Diamino-6-Phenylphenanthridine and their molecular complexes with sulfonated polystyrene ionomers. Macromolecules. 28: 6343-6346. PDF

102. Shao, L., R. A. Weiss and R. D. Lundberg. 1995. Solution Behavior of Lightly Sulfonated Polystyrene Ionomer/Poly((-benzyl-L-glutamate) Complexes. J. Polym. Sci., Part B: Polym. Phys., 33: 2083-2092. PDF

103. Lu, X., and R. A. Weiss. 1996. Development of Miscible Blends of Bisphenol-A Polycarbonate and Sulfonated Polystyrene Ionomers From Intrapolymer Repulsive Interactions. Macromolecules, 29: 1216-1221. PDF

104. Feng, Y., A. Schmidt and R. A. Weiss. 1996. Compatibilization of Polymer Blends by Complexation: 1. Spectroscopic Characterization of Interactions in Ionomer/Polyamide Blends. Macromolecules, 29: 3909-3917. PDF

105. Feng, Y., R. A. Weiss, A. Karim, C. C. Han, J. F. Anker, and D. G. Peiffer. 1996. Compatibilization of Polymer Blends by Complexation: 2. Kinetics of Interfacial Mixing, Macromolecules, 29: 3918-3924. PDF

106. Lu, X., and R. A. Weiss. 1996. Specific Interactions and Miscibility of Blends of Poly(e-caprolactam) and Sulfonated PEEK Ionomer. J. Polym. Sci., Part B (Physics), 34: 1795-1807. PDF

107. Feng, Y., R. A. Weiss, C. C. Han. 1996. Compatibilization of Polymer Blends by Complexation: 3. Structure Pinning During Phase Separation of Ionomer/Polyamide Blends, Macromolecules, 29: 3925-3930. PDF

108. De Jesus, M. C., R. A. Weiss and Y. Chen. 1997. The development of Conductive Composite Surfaces by a Diffusion-Controlled In Situ Polymerization of Pyrrole in Lightly Sulfonated Polystyrene Ionomers., J. Polym. Sci., Physics, 35: 347-358.

109. Chen, Y., C. M. de Jesus and R. A. Weiss. 1996. Composite Film of Lightly Sulfonated Polystyrene and Polypyrrole. Acta Polymerica Sinica. No. 1 (Feb): 72-76.

110. Fu, Y., and R. A. Weiss. 1996. Protonation of Polyaniline with Lightly Sulfonated Polystyrene, Macromol. Rapid Commun., 17: 487-492. PDF

111. Chen, Z. J., N. G. Remediakis, M. T. Shaw, and R. A. Weiss. 1996. Examining Elastomer Blends' Phase Behavior, Rubber & Plastics, May 6: 40-41.

112. Xie, R., and R. A. Weiss. 1998. Miscible Blends Formed from Intrapolymer Repulsive Interactions: 2. Phase Behavior of Blends of Bisphenol A Polycarbonate and Zinc-Sulfonated Polystyrene Ionomers. Polymer, 39: 2851- 2858.

113. Remediakis, N. G., R. A. Weiss and M. T. Shaw. 1997. Phase Structure Changes in a Sheared Blend of High Molecular Weight Polybutadiene and Polyisoprene Elastomers. Rub. Chem. Tech., 70: 71-89.

114. Fu, Y. and R. A. Weiss. 1997. Protonation of Polyaniline with Lightly Sulfonated Polystyrene. Synth. Met., 84(1-3): 103 – 104 PDF

115. Fu, Y. and R. A. Weiss. 1997. In Situ Polymerization of Aniline Within Lightly Sulfonated Polystyrene. Synth. Met.,84(1-3): 129 - 130. PDF

116. Xie, R., and R. A. Weiss. 1997. Development of Miscible Blends from Intrapolymer
Repulsive Interactions: Polycarbonate/polystyrene Ionomers. in Morphological Control in Multiphase Polymer Mixtures, R. M. Briber, D. G. Peiffer, and C. C. Han, Ed., Proc. Mat. Res. Soc., Vol. 461: 13 - 18. PDF

117. Weiss, R. A., Y. Feng, R. Tucker, R. Xie, C. C. Han and A. Karim. 1997. Structure Pinning During Phase-separation of Polyamide/ionomer Blends. in Morphological Control in Multiphase Polymer Mixtures, R. M. Briber, D. G. Peiffer, and C. C. Han, Ed., Proc. Mat. Res. Soc., Vol. 461: 3 - 11. PDF

118. Mani, S., R. A. Weiss, S. F. Hahn, C. E. Williams, M. E. Cantino and L. Khairallah. 1998. Microstructure of Block Copolymers of Polystyrene and Poly(ethylene-alt-propylene). Polymer. 39: 2023-2033.

119. Feng Y., A. Karim, R. A. Weiss and C. C. Han. 1998. Control of Polystyrene Film Dewetting Through sulfonation and Metal Complexation. Macromolecules, 31: 484-493. PDF

120. Xie, R., and R. A. Weiss. 1997. Molecular Dynamics Simulation of Chain Collapse of Random Ionomers in a Poor Solvent. Comp. Theor. Polym. Sci., 7: 65-74.

121. DeJesus, M. C., Y. Fu and R. A. Weiss. 1997. Conductive Polymer Blends Prepared By In Situ Polymerization of Pyrrole: A Review. Polym. Eng. Sci., 37: 1936-1943.

122. Fu, Yueping, Daniel R. Palo,, Can Erkey and R. A. Weiss, 1997. Synthesis of Conductive Polypyrrole/polyurethane Foams Via a Supercritical Fluid Process. Macromolecules, 30: 7611-7613.

123. DeJesus, M. C., R. A. Weiss and S. F. Hahn. 1998. The Synthesis of Conductive Nano-composites by a Selective in situ Polymerization of Pyrrole Within the Lamellar Microdomains of a Block Copolymer. Macromolecules, 31: 2230-2235 PDF

124. Fu, Yueping, R. A. Weiss, P. P. Gan and M. D. Bessette. 1998. Conductive Elastomeric Foams Prepared by In Situ Vapor Phase Polymerization of Pyrrol and Copolymerization of Pyrrole and N-Methylpyrrole. Polym. Eng. Sci., 38: 857-862.

125. Chakrabarty, K., T. A. P. Seery and R. A. Weiss. 1998. Characterization of Ionomer Solutions. 1. Phase Behavior and Gelation of Sulfonated Polystyrene Ionomers in Decalin. Macromolecules, 31: 7385-7389.

126. Chakrabarty, K., R. A. Weiss, A. Sehgal, and T. A. Seery. 1998. Characterization of Ionomer Solutions. 2. Dynamic Light Scattering Studies on Sulfonated Polystyrene Ionomers in Non-polar Solvent, Macromolecules, 31: 7390-7397.

127. Xie, R., A. Karim, J. F. Douglas, C. C. Han and R. A. Weiss. 1998. Spinodal Dewetting of Thin Polymer Films. Phys. Rev. Lett., 81: 1251-1254.

128. Hong, Z., M. T. Shaw and R. A. Weiss. 1998. Effect of Shear Flow on the Morphology and Phase Behavior of a Near-Critical SAN/PMMA Blend. Macromolecules, 31: 6211-6216. PDF

129. Mani, S., R. A. Weiss, C. E. Williams and S. F. Hahn. 1999. Microstructure of Ionomers based on Sulfonated Block Copolymers of Polystyrene and Poly(ethylene-alt-propylene). Macromolecules, 32: 3663-3670. PDF

130. Tucker, R., B. Gabrys, W. Zajac, M. S. Kalhoro, K. Andersen and R. A. Weiss. 2000 . Destruction of Short-Range Order in Polycarbonate/Ionomer Blends. Scattering from Polymers, B. Hsiao, D. Lohse and P. Cebe, Eds., American Chemical Society, Washington, D.C., ACS Symp. Ser.739: 328-340.

131. Mani, S., R. A. Weiss, M. E. Cantino, L. H. Khairallah, S. F. Hahn and C. E. Williams. 2000. Evidence for a Thermally Reversible Order-Order Transition Between Lamellar and Perforated Lamellar Microphases in a Triblock Copolymer. Eur. Polym. J., 36: 215-219. PDF

132. Weiss, R. A., Y. Ghebremeskel and L. Charbonneau. 2000. Miscible Blends of a Thermotropic Liquid Crystalline Polymer and Sulfonated Polystyrene Ionomers. Polymer, 41: 3471-3477. PDF

133. Zhang, H., R. A. Weiss, J. E. Kuder and D. Cangiano, 2000. Reactive Compatibilization of Blends Containing Liquid Crystalline Polymers. Polymer. 41: 3069-3082. PDF

134. Hong, Z., M. T. Shaw and R. A. Weiss. 2000. Structure Evolution and Phase Behavior of Polymer Blends Under the Influence of Shear. Polymer, 41: 5895-5902. PDF

135. Bae, S. S., K. Chakrabarty, T. A. P. Seery and R. A. Weiss. 1999. Thermoprocessible Hydrogels I: Synthesis and Properties of Polyacrylamides with Perfluoroalkyl Side Chains. J. Macromol. Sci., Pure Appl. Chem., A36(7-8): 931-948. PDF

136. Jackson, D. A., J. T. Koberstein and R. A. Weiss. 1999. Small Angle X-Ray Scattering Studies of Zinc Stearate-Filled Sulfonated EPDM Ionomers. J. Polym. Sci., Physics Ed., 37, 3141-3150. PDF

137. Sherman, G., S. Shenoy, C. Erkey and R. A. Weiss. 2000. A Static Method Coupled with Gravimetric Analysis for the Determination of Solubilities of Solids in Supercritical Carbon Dioxide, I&EC Research, 39: 846-848. PDF

138. VanderHart, D. L., Y. Feng, C. C. Han and R. A. Weiss. 2000. Morphological Characterization of Blends of Metal-Sulfonated Polystyrene and Methylated Polyamide by Solid State NMR, Macromolecules, 33: 2206-2227. PDF

139. Kirkmeyer, B. P., R. A. Weiss and K. J. Winey. 2001. Spherical and Shell-Type Ionic Aggregates in Zn-Neutralized SPS Ionomers. J. Polym. Sci., Polym. Physics, 39: 477-483. PDF

140. Dickinson, L. C., R. A. Weiss, and G. E. Wnek. 2001. NMR Characterization of Sulfonation Blockiness in Copoly(styrene-sulfonated styrene), Macromolecules. 34: 3108-3110.

141. Shenoy, S. L., I. Kaya, C. Erkey and R. A. Weiss. 2001. Synthesis of Conductive Elastomeric Foams by an In Situ Polymerization of Pyrrole Using Supercritical Carbon Dioxide and Ethanol Cosolvents. Synthetic Metals., 123: 509-514.

142. Son, Y, and R. A. Weiss. 2001. Compatibilizers for Thermotropic Liquid Crystalline Polymer/Polyolefin Blends Prepared by Reactive Mixing: The Effect of Processing Conditions. Polym. Eng. Sci., 41: 329-340.

143. Chun, Y. S., and R. A. Weiss. 2002. The Development of the Ionic Microphase in Sulfonated Poly(ethylene-co-propylene-co-ethylidene norbornene) Ionomers During Physical Aging. Polymer, 43: 1915-1923. PDF

144. Shenoy, S. L., D. Cohen, C. Erkey and R. A. Weiss. 2002. A Solvent-Free Process for Preparing Conductive Elastomers By an In Situ Polymerization of Pyrrole. I&EC Research, 41: 1484-1488.

145. Gabrys, B. J., A. A. Bhutto, D. G. Bucknall, R. Braiewa, D. Vesely and R. A. Weiss. 2002 Neutron Reflectivity Studies of Ionomer Blends. Appl. Physics A, 74/S1, S336. PDF

146. Shenoy, S. L., D. Cohen, C. Erkey and R. A. Weiss. 2004. Supercritical Carbon Dioxide Aided Preparation of Conductive Polyurethane-Polypyrrole Composites. J. Supercritical Fluids. 28: 233-239 PDF

147. Son, Y., and R. A. Weiss. 2002. Compatibilizers for Thermotropic Liquid Crystalline Polymer/Polyethylene Blends Prepared by Reactive Mixing. Polym. Eng. Sci., 42: 1322-1332.

148. Son, Y., and R. A. Weiss. 2003. Compatibilization of Syndiotactic Polystyrene and a Thermotropic Liquid Crystalline Polymer Blend With a Zinc Salt of a Sulfonated Polystyrene Ionomer. J. Appl. Polym. Sci., 87: 564-568.

149. Wang, Y-B., G. Sotzing, R. A. Weiss, 2003. Conductive Polymer Foams as Sensors for Volatile Amines. Chem. Mater., 15: 375-377.

150. Tucker, R. T., C. C. Han, A. V. Dobrynin and R. A. Weiss. 2003. Small Angle Neutron Scattering Analysis of Blends with Very Strong Intermolecular Interactions: Polyamide/Ionomer Blends. Macromolecules. 36: 4404-4410.

151. Xu, T., M. T. Shaw and R. A. Weiss. 2004. Rheo-Optical Studies of the Effect of Shear Flow on the Structure of Elastomer Blends. J. Polym. Sci., Polym. Phys. Ed., 42: 1725-1738.

152. Son, Y., Y. S. Chun and R. A. Weiss. 2004. Improvement of the Processability of Poly(Ether Ketone Ketone) by the Addition of a Liquid Crystalline Polymer. Polym. Eng. Sci., 44: 541-547.

153. Xu, L., and R. A. Weiss. 2003. Melt Crystallization of Bisphenol A Polycarbonate in Blends of Polycarbonate with Zinc Salts of Sulfonated Polystyrene Ionomers. Macromolecules. 36, 9075-9084.

154. Xu, L., and R. A. Weiss. 2004. The Effect of Tosylate Salts and Zinc Sulfonate Polystyrene Ionomer on the Thermal Stability of Bisphenol A Polycarbonate. Polym. Degradation and Stability, 84: 295-304.

155. Wu, Q., and R. A. Weiss. 2004. Synthesis and Characterization of Poly(styrene-co-vinyl phosphonate) Ionomers. J. Polym. Sci., Phys. Ed., 42: 3628-3641. PDF

156. Gao, Y., N. R. Choudhury, N. Dutta, R. Shanks and R. A. Weiss. 2003. Effect of the Ionic Aggregation on the Crystallization Behavior of Polyethylene Part of Ionomer. J. Thermal Anal. Calor., 73: 361-380.

157. Chun, Y.S., and R. A. Weiss. 2004. Thermal Behavior of Poly(ether ketone ketone)/
Thermoplastic Polyimide Blends. J. Appl. Polym. Sci., 94: 1227-1235.

158. Filburn, T., J. J. Helble and R. A. Weiss. 2005. Development of Supported Ethanolamines and Modified Ethanolamines for CO2 Capture, IE&C Res., 44: 1542-1546. PDF

159. Rojanapitayakorn, P., P.T. Mather, A. J. Goldberg and R.A. Weiss. 2005. Optically Transparent Self-reinforced Poly(ethylene terephthalate) Composites: Molecular Orientation and Mechanical Properties, Polymer, 46: 761-773. PDF

160. Tian, J., T. A. P. Seery and R. A. Weiss. 2004. Physically Crosslinked Alkyl Acrylamide Hydrogels: Phase Behavior and Microstructure. Macromolecules, 37: 9994-10000. PDF

161. Tian, J., T. A. P. Seery, D. L. Ho and R. A. Weiss. 2004. Physically Crosslinked Alkyl Acrylamide Hydrogels: A SANS Analysis of the Microstructure. Macromolecules, 37: 10001-10008. PDF

162. Lee, H-S., D. Fishman, B. Kim and R. A. Weiss. 2004. Nano-Composites Derived from Melt Mixing a Thermotropic Liquid Crystalline Polyester and Zinc Sulfonated Polystyrene Ionomers. Polymer, 45: 7807-7811.

163. Swier, S., J. Gasa, M. T. Shaw and R. A. Weiss. 2004. Sulfonation reaction kinetics of poly(ether ketone ketone) (PEKK) using a mixture of concentrated and fuming sulfuric acid. IE&C Res., 43: 6948-6954. PDF

164. Manoj, N. R., D. Ratna and R. A. Weiss. 2004. Diffusion of Water in Sulfonated Polystyrene Ionomers. 2004. Macromolecular Research, 12: 26-31.

165. Swier, S., M. T. Shaw and R. A. Weiss. 2006. Morphology Control of Sulfonated Poly(ether ketone ketone)/poly(ether imide) blends and their use in Proton-Exchange Membranes. J. Membr. Sci., 270: 22-31. .PDF

166. Swier, S., Y.-S. Chun, J. Gasa, M. T. Shaw and R. A. Weiss. 2005. Sulfonated Poly(ether ketone ketone) Ionomers as Proton Exchange Membranes. Polym. Eng. Sci., 45: 1081-1091. PDF

167. Shim, S. Y., and R. A. Weiss. 2005. Poly(ethylene-co-styrene) Copolymer Ionomers. Polym. Int., 54: 1220-1223. PDF

168. Gasa, J. V., S. Boob, R. A. Weiss and M. T. Shaw. 2006. Proton Exchange Membranes Composed of Sulfonated Poly(Ether Ketone Ketone) and Crosslinked Sulfonated Polystyrene Particles. J. Membr. Sci., 269: 177-186. PDF

169. Bhiwankar, N., and R. A. Weiss. 2005. Melt-intercalation of Sodium-Montmorillonite with Alkylamine and Quarternized Ammonium Salts of Sulfonated Polystyrene Ionomers, Polymer. 46: 7246-7254 PDF

170. Brijmohan, S. B., S. Swier, R. A. Weiss and M. T. Shaw. 2005. Synthesis and characterization of crosslinked sulfonated polystyrene nanoparticles, Ind. Eng. Chem. Res., 44: 8039-8045. PDF

171. Lee, H-S., L. Zhu and R. A. Weiss. 2005. Formation of nanoparticles during melt mixing a thermotropic liquid crystalline polyester and sulfonated polystyrene ionomers: Morphology and origin of formation. Polymer, Polymer, 46: 10841-10853. PDF

172. Swier, S., V. Ramani, J. M. Fenton, M. T. Shaw and R. A. Weiss. 2005. Polymer blends based on sulfonated poly(ether ketone ketone) and poly(ether sulfone) as proton exchange membranes for fuel cells. J. Membrane Sci. 256: 122-133. PDF

173. Wang, Y., G. A. Sotzing and R. A. Weiss. 2006. Sorption of Iodine by Polyurethane and Melamine-Formaldehyde Foams using Iodine Sublimation and Iodine Solutions. Polymer. 47: 2728-2740. PDF

174. Mullarney, M. P., T. A. P Seery and R. A. Weiss. 2006. Drug diffusion in hydrophobically modified N,N-dimethylacrylamide hydrogels. Polymer, 47: 3845–3855 PDF

175. Gasa, J. V., R. A. Weiss and M. T. Shaw. 2006. Influence of Blend Miscibility on the Proton Conductivity and Methanol Permeability of Polymer Electrolyte Blends. J. Polym. Sci., Phys. Ed., 44: 2253-2266. PDF

176. Bhiwankar, N., and R. A. Weiss. 2006. Melt Intercalation/Exfoliation of Polystyrene--Sodium-Montmorillonite Nanocomposites Using Sulfonated Polystyrene Ionomers Compatibilizers, Polymer, 47: 6694-6691. PDF

177. Wang, Y., G. A. Sotzing and R. A. Weiss. 2008. Preparation of Conductive Polypyrrole/ Polyurethane Composite Foams by In Situ Polymerization of Pyrrole, Chem. Mat., 20: 2574-2582. PDF

178. Lavorgna, M., G. Mensitieri, Gi. Scherillo, S. Swier and R. A. Weiss. 2007. Polymer blends for fuel cells based on SPEKK: effect of co-continuous morphologies on water sorption and ionic conductivity. J. Polym. Sci. Polym. Phys. Ed., 45: 395-404. .PDF

179. Weiss, R. A., W-C. Yu. 2007. Viscoelastic Behavior of Very Lightly Sulfonated Polystyrene Ionomers. Macromolecules. 40: 3640-3643. PDF

180. Wu, Q., and R. A. Weiss. 2007. Viscoelastic properties of poly(styrene-co-vinylphosphonate) ionomers. Polymer. 48: 7558 – 7566. PDF

181. Gasa, J. V., R. A. Weiss and M. T. Shaw. 2007. Ionic Crosslinking of Polymer Electrolyte Membranes using Barium Cations. J. Membrane Sci., 304: 173-180. PDF

182. Ghebremeskel, Y., and R. A. Weiss. 2008. Near Infrared Analysis of Blends of Sulfonated Polystyrene Ionomers and Poly(e-caprolactam). J. Polym. Sci, 46: 1602 – 1610. PDF

183. Ro, A., S. J. Huang and R. A. Weiss. 2008. Synthesis and Thermal Properties of Telechelic Poly(lactic acid) Ionomers. Polymer. 49: 422-431. PDF

184. Gasa, J., R. A. Weiss and M. T. Shaw. 2008. Structured polymer electrolyte blends based on sulfonated polyetherketoneketone (SPEKK) and a poly (ether imide) (PEI), J. Membr. Sci., 320: 215-223 PDF

185. Weiss, R. A., X. Zhai and A. V. Dobrynin. 2008. Nanoparticle-Textured Surfaces from Spin-Coating. Langmuir. 24: 5218-5220. PDF

186. Ramani, V., S. Swier, M. T. Shaw, R. A. Weiss, H. R. Kunz, J. M. Fenton. 2008. Membranes and Membrane Electrode Assemblies Based on Sulfonated Poly (ether ketone ketone) and Heteropolyacids for Polymer Electrolyte Fuel Cells. J. Electrochem. 155: B532-B537 PDF

187. Weiss, R. A., E. Izzo and S. Mandelbaum. 2008. New Design of Shape Memory Polymers: Mixtures of an Elastomeric Ionomer and Low Molar Mass Fatty Acids and Their Salts. Macromolecules. 41; 2978-2980 PDF

188. Weiss, R. A., and H-Y Zhao. 2009. Viscoelastic Behavior of Sulfonated Polystyrene Oligomers. J. Rheol., 53: 191 – 212. PDF

189. Ro, A., S. J. Huang and R. A. Weiss. 2009. Synthesis and properties of random poly(lactic acid)-based ionomers. Polymer, 50: 1134-1143. PDF

190. Zhai., X,. and R. A. Weiss, R. A., 2008 . Wetting Behavior of Lightly Sulfonated Polystyrene
Ionomers on Silica Surfaces. Langmuir, 24: 12928-12935. PDF

191. Shang, S., S. J. Huang and R. A. Weiss. 2009. Synthesis and Properties of Itaconic Anhydride and Stearyl Methancrylate Copolymers and Ionomers. Polymer. 50: 3119-3127. PDF