合成纤维

2002, (02) 11-13

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熔融聚合法直接合成聚乳酸的研究
STUDY ON THE DIRECT SYNTHESIS OF POLYLACTIC ACID THROUGH MELT POLYCONDENSATION

汪朝阳,赵耀明,麦杭珍,严冰
Wang Zhaoyang Zhao Yaoming Mai Hangzhen Yan Bing (Institute of Materials, South China University of Technology 510640)

摘要(Abstract):

以L一乳酸单体为原料,系统地研究了熔融聚合法直接合成聚乳酸的最佳工艺条件,即:选择氯化亚锡为催化剂,用量0.5wt%,在聚合温度180℃、绝对压力70Pa下反应10h,可获得较高分子量的聚乳酸。
Starting from L-lactic acid, the optimal conditions of the direct synthesis of polylactic acid (PLA) through melt polycon-densation were systematically studied, which is choosing SnCl2 as an appropriate catalyst and its quality 0.5wt% , controlling polycondensation temperature 180℃ and time 10h under the absolute pressure 70Pa.

关键词(KeyWords): 乳酸;熔融聚合;聚乳酸;催化剂;生物降解材料
lactic acid melt polycondensation polylactic acid (PLA)catalyst biodegradable material

Abstract:

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基金项目(Foundation): 高等学校博士学科点专项科研基金资助课题;;广东省自然科学基金资助项目

作者(Author): 汪朝阳,赵耀明,麦杭珍,严冰
Wang Zhaoyang Zhao Yaoming Mai Hangzhen Yan Bing (Institute of Materials, South China University of Technology 510640)

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