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生物降解高分子--聚乳酸的合成
引用本文:王哲,倪宏哲,刘喜晶.生物降解高分子--聚乳酸的合成[J].吉林工学院学报,2005,26(3):190-193.
作者姓名:王哲  倪宏哲  刘喜晶
作者单位:长春工业大学化学工程学院,吉林长春130012
摘    要:以天然矿石--改性片麻岩为聚合反应的催化剂,通过直接缩聚方法制备了不同分子量的聚乳酸.并应用FTIR,^1H-NMR,DSC等测试手段对两种不同催化剂制备的聚乳酸的结构进行对比研究.同时也研究了反应时间对聚合产物分子量的影响.

关 键 词:直接缩聚  生物降解  改性片麻岩  聚乳酸
文章编号:1006-2939(2005)03-0190-04
收稿时间:2004-07-18
修稿时间:2004年7月18日

The synthesis of polylactic acid--a biodegradable polymer material
WANG Zhe, NI Hong-zhe, LIU Xi-jing.The synthesis of polylactic acid--a biodegradable polymer material[J].Journal of Jilin Institute of Technology,2005,26(3):190-193.
Authors:WANG Zhe  NI Hong-zhe  LIU Xi-jing
Institution:School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
Abstract:Polylactic acid(PLA) of different molecular weights were synthesized by the direct(condensation) of lactic acid with modified gneiss as the catalyst,or with modified gneiss and stannous(caprylate) as the catalyst in the same reaction conditions and different reaction times.The constituent of PLA prepared with these two different kinds of catalyst was characterized and studied by FTIR,~(1)H-NMR,DSC.The effect of reaction time was also exmined.
Keywords:polycondensation  biodegradation  modified gneiss  polylactic acid  
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