| MOLECULAR CHAIN STRUCTURE AND CRYSTALLINE STRUCTURE OF PB-ET COPOLYESTER |
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| 引用本文： | 曾凡龙,金惠芬,孙桐,徐江. MOLECULAR CHAIN STRUCTURE AND CRYSTALLINE STRUCTURE OF PB-ET COPOLYESTER[J]. 东华大学学报(英文版), 1991, 0(4) |
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| 作者姓名： | 曾凡龙 金惠芬 孙桐 徐江 |
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| 作者单位： | Dept.of Chemical-fiber Technology CTU，Dept.of Chemical-fiber Technology，CTU，Dept.of Chemical-fiber Technology，CTU，Shanghai Polyester Resin Plant |
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| 摘 要： | The molecular chain structure and crystalline structure of PB-ET copolyester made by con-densation polymerization are studied by means of ~(13)C nuclear magnetic resonance spectroscopy(~(13)C NMR),dynamic mechanical analysis (DMA),wide angle X-ray scattering (WAXS),depolarized light intensity (DLI) and stress-strain measurement(S-S).It is shown that PB-ETcopolyester is a random copolymer.Because of different ratios of EG(ethylene glycol)to BD(butane diol)in the copolyester,its crystalline forms and mechanical properties vary remarkably.With the increasing amount of BD,its crystallization kinetic parameters n,k and t_(1/2)~(-1) increaserapidly.When EG/BD equals 25/75 (mole ratio),the copolyester has αβ transition as PBTdoes.
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MOLECULAR CHAIN STRUCTURE AND CRYSTALLINE STRUCTURE OF PB-ET COPOLYESTER |
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| Zeng Fanlong Jin Huifen Sun Tong. MOLECULAR CHAIN STRUCTURE AND CRYSTALLINE STRUCTURE OF PB-ET COPOLYESTER[J]. Journal of Donghua University, 1991, 0(4) |
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| Authors: | Zeng Fanlong Jin Huifen Sun Tong |
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| Abstract: | |
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| Keywords: | chemical shift molecular structure transition copolyester crystalline form random distribution |
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