Direct investigations on strain-induced cold crystallization behavior and structure evolutions in amorphous poly(lactic acid) with SAXS and WAXS measurements
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- 作者：Chengbo Zhoua ; Hongfei Lib ; hfli@ciac.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Wenyang Zhanga ; Jingqing Lia ; Shaoyong Huangc ; Yanfeng Mengd ; Jesper deClaville Christiansene ; Donghong Yuf ; Zhonghua Wug ; Shichun Jianga ; scjiang@tju.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Strain-induced cold crystallization ; Mesophase evolution in poly(lactic acid) glass ; In situ SAXS and WAXS measurements
- 刊名：Polymer
- 出版年：2016
- 出版时间：4 May 2016
- 年：2016
- 卷：90
- 期：Complete
- 页码：111-121
- 全文大小：3026 K
文摘
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Strain-induced PLA structure evolution was investigated via in situ WAXS and SAXS.
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Stretching-induced α′ crystal is more ordered than the cold crystallized one.
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The PLA was stretched into different ordered structures at different temperatures.
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The analogous shish-kebab morphology was formed when stretched at higher temperatures.
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The lamellar crystal with thickness about 10 nm evolutes from stable mesophase.