| 含较高立构缺陷聚乳酸的非等温结晶动力学 |
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| 引用本文： | 谌天,向明. 含较高立构缺陷聚乳酸的非等温结晶动力学[J]. 合成树脂及塑料, 2011, 28(4): 65-68 |
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| 作者姓名： | 谌天 向明 |
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| 作者单位： | 四川大学高分子研究所,高分子材料工程国家重点实验室,四川成都610065 |
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| 摘 要： | 用非等温结晶动力学研究了聚乳酸(PLA)的结晶行为,利用Hoffman-Weeks外推法以及Baur等提出的方程反推出PLA中的右旋组分摩尔分数为7.2%.较高的右旋组分摩尔分数是PLA结晶过程中成核速率低的主要因素.添加质量分数为2%滑石粉等成核剂后,PLA结晶速率没有明显提高；含10%滑石粉的PLA结晶速率略上升,...
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| 关 键 词： | 聚乳酸 滑石粉 聚乙二醇 非等温结晶 |
Non-isothermal crystallization kinetics of poly(L-lactide-co-meso-lactide) |
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| Chen Tian,Xiang Ming. Non-isothermal crystallization kinetics of poly(L-lactide-co-meso-lactide)[J]. China Synthetic Resin and Plastics, 2011, 28(4): 65-68 |
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| Authors: | Chen Tian Xiang Ming |
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| Affiliation: | Chen Tian,Xiang Ming (Polymer Research Institute,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China) |
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| Abstract: | The crystallization of poly(L-lactide-co-meso-lactide) was studied in the terms of non-isothermal crystallization kinetics.The D-isomer molar content of the polylactide was 7.2%as calculated by Hoffman-Weeks plot and the equation proposed by Baur.The relatively high amount of D-isomer was the main reason for the low nucleation rate of the polylactide during the crystallization process.The crystallization rate of the polylactide did not rise noticeably after adding 2%in mass fraction of nucleating agent such... |
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| Keywords: | poly(L-lactide-co-meso-lactide) talc polyethylene glycol non-isothermal crystallization |
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