Dr.   Stephen   Z.D.   Cheng

Dr. Stephen Z.D. Cheng

Frank C. Sullivan Distinguished Research Professor
Robert C. Musson Professor; Trustees Professor
Department of Polymer Science
Phone: 330-972-6931
Email: scheng@uakron.edu


  • 1985 Ph.D., Polymer Chemistry, Rensselaer Polytechnic Institute
  • 1981 M.S., Polymer Engineering, DongHua University
  • 1977 Diploma, Mathematics, East China Normal University

Dr. Cheng's Research Website


National Academy of Engineering - Member Election, 2008
Election Citation: For the development of materials for liquid crystal displays and the elucidation of structure-property relationships in polymeric materials.

Research Interests

Condensed States in Polymeric Materials: Including Transition Thermodynamics, Kinetics, Molecular Motion in Metastable States, Crystal Structure and Morphology, Liquid Crystals and Liquid Crystalline Polymers, Surface and Interface Structures and Related Phase Transitions, Phase Structures and Phase Transitions in Nano-Confined Environments, Polymer Blends and Copolymers, High Performance Polymers, and Polymer Photonics.

Contact Information

Dr. Stephen Z.D. Cheng
The University of Akron
Department of Polymer Science
Akron, Ohio 44325-3909

Email: scheng@uakron.edu
Voice: (330) 972-7500
Fax: (330) 972-5290

Recent Publications

Christopher Y. Li, Shi Jin, Xin Weng, Jason J. Ge, Dong Zhang, Feng Bai, Frank W. Harris, Stephen Z. D. Cheng, Donghang Yan, Tianbai He, Bernard Lotz, Liang-Chy Chien, Liquid crystalline phases, microtwining in crystals and helical chirality transformations in a non-racemic chiral polyester. Macromolecules, 35, 5475-5482, 2002.

Shi Jin, Shuxin Cong, Gi Xue, Huiming Xiong, Bart Mansdorf and Stephen Z. D. Cheng, Anisotropic polythiophene films with high conductivity and mechanical property via a new electro-chemical synthesis. Advanced Materials, 14, 1492-1496, 2002.

Xin Weng, Christopher Y. Li, Shi Jin, John Z. Zhang, Dong Zhang, Frank W. Harris, Stephen Z. D. Cheng and Bernard Lotz, Helical senses, liquid crystalline behavior, crystal rotational twinning in a main-chain polyester with molecular asymmetry and odd-even effects on its analogs. Macromolecules, 35, 9678-9686, 2002.

Stephen Z. D. Cheng and Bernard Lotz, Nucleation and crystallization control in polymers: structural and morphological probes on different length and time scales. Philosophical Transactions A, Mathematical, Physical & Engineering Sciences, Royal Society London, 361, 517-537, 2003.

Lei Zhu, Ping Huang, William Y. Chen, Xin Weng, Stephen Z. D. Cheng, Qing Ge, Roderic R. Quirk, Tony Senador, Montgomery T. Shaw Edwin L. Thomas, Bernard Lotz, Benjamin S. Hsiao, Fengji Yeh and Lizhi Liu, "Plastic deformation" mechanism of a shear-induced metastable hexagonally perforated layer phase in a polystyrene-b-poly(ethylene oxide) diblock copolymer. Macromolecules, 36, 3180-3188, 2003.

Er-Qiang Chen, Mark D. Foster, Yongli Mi, Wen-Li Wu and Stephen Z. D. Cheng, Glass transition behavior of polystyrene blocks in collapsed dry micelles of a PS-b-PDMS diblock copolymer. Chemistry of Materials, 15, 2129-2135, 2003.

Jason J. Ge, Seok-Choel Hong, Benjamin Y. Tang, Christopher Y. Li, Dong Zhang, Frank W. Harris, Denke Yang, Y. R. Shen and Stephen Z. D. Cheng, Assembly of photo-polymerizable discotic molecules into a retardation film with an oblique optical axis at an aligned polyimide layer Surface. Advanced Functional Materials, 13, 718-725, 2003.

Wensheng Zhou, Xin Weng, Shi Jin, Sanjay Rastogi, Andrew J. Lovinger, Bernard Lotz and Stephen Z. D. Cheng, Chain orientation and defects in lamellar single crystals of syndiotactic polypropylene fractions. Macromolecules, 36, 9485-9491, 2003.

Chenchen Xue, Shi Jin, Xing Weng, Jason J. Ge, Zhihao Shen, Hong Shen, Matthew J. Graham, Kwang-Un Jeong, Huabing Wang, Dong Zhang, Mingming Guo, Frank W. Harris, Stephen Z. D. Cheng, Christopher Li and Lei Zhu, Self-assembled supra-molecular structures via hydrogen bonding and aromatic/aliphatic nano-phase separation in a symmetric tapered bisamide. Chemistry of Materials, 16, 1014-1025, 2004.

Ping Huang, Lei Zhu, Ya Guo, Qing Ge, Alexander J. Jing, William Y. Chen, Roderic P. Quirk, Stephen Z. D. Cheng, Edwin L. Thomas, Bernard Lotz, Benjamin S. Hsiao, Avila-Orta A. Carlos and Igors Sics, Confinement size effect on orientation changes of poly(ethylene oxide) crystals in poly(ethylene oxide)-block-polystyrene diblock copolymers. Macromolecules, 37, 3689-3698, 2004.

William Y. Chen, Joseph X. Zheng, Stephen Z. D. Cheng, Christopher Y. Li, Ping Huang, Lei Zhu, Huiming Xiong, Qing Ge, Rodric P. Quirk, Bernard Lotz, Lingfeng Deng, Chi Wu and Edwin L. Thomas, The onset of tethered chain overcrowding. Physical Review Letter, 93, 028301-1-4, 2004.

William Y. Chen, Christopher Y. Li, Joseph X. Zheng, Lie Zhu, Ping Huang, Qing Ge, Roderic P. Quirk, Bernard Lotz, Lingfeng Deng, Chi Wu, Edwin L. Thomas and Stephen Z. D. Cheng, "Chemical shielded" poly(ethylene oxide) single crystal growth and construction of channel-wire arrays with chemical and geometric recognitions. Macromolecules, 37, 5292-5299, 2004.

Shi Jin, Yuguo Ma, Steven Zimmerman and Stephen Z. D. Cheng, A novel ABC stacking supramolecular discotic columnar structure constructed via hydrogen bonded hexamers. Chemistry of Materials, 16, 2975-2977, 2004.

Jie Hu, Dong Zhang, Shi Jin, Frank W. Harris and Stephen Z. D. Cheng, Synthesis and properties of planar electron-deficient liquid crystalline bisphenazines. Chemistry of Materials, 16, 4912-4915, 2004.

Jason J. Ge, Haoqing Hou, Qing Li, Matt Graham, Andreas Greiner, Darrell H. Reneker, Frank W. Harris, and Stephen Z. D. Cheng Assembly of well-aligned multiwalled carbon nanotubes in confined polyacrylonitrile environments: electrospun composite nanofiber sheets. Journal of the American Chemical Society, 125, 15754-15761, 2004.

Bernard Lotz and Stephen Z. D. Cheng, A critical assessment of evidence in favor of unbalanced surface stress as the mechanical origin of twisting and scrolling in polymer crystals. Polymer, 46, 577-610, 2005.

Faculty Profile [PDF]