Proceedings of the Polymer Society of Korea Conference (한국고분자학회:학술대회논문집)
- 2006.10a
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- Pages.361-361
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- 2006
Simultaneous Measurements of Stress and Birefringence Development during Extensional Deformation of Cyclic Olefin Copolymer
- Yagisawa, Yusuke (Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology) ;
- Ito, Hiroshi (Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology) ;
- Kikutani, Takeshi (Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology)
- Published : 2006.10.13
Abstract
To clarify the structure development of cyclic olefin copolymers in stretching and relaxation processes, on-line measurements of optical retardation and tensile force were performed. Birefringence increased continuously whereas stress showed yielding at stretching temperatures of
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