2011 Fiscal Year Final Research Report
Analysis of molecular orientation of cyclo-olefin copolymer film during sequential-biaxial stretching.
| Project/Area Number |
22750200
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
TAKARADA Wataru 東京工業大学, 大学院・理工学研究科, 助教 (50467031)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 高分子 / 繊維加工 |
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| Research Abstract |
In-situ stress and birefringence measurements were performed during the stretching and relaxation processes of cyclo-olefine copolymer films. When the measurement was conducted at a high temperature, stress-birefringence behavior corresponds to two phase model with rubber part and glass part. However, when the measurement was conducted at temperatures close to glass transition temperature and at high strain rates, existence of the 3rd component which has negative birefringence and medium level of relaxation time was founded.
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