文献类型：期刊文献

中文题名：端羟基聚乳酸的合成与表征

英文题名：Synthesis and Characterization of Hydroxyl-terminated Poly (lactic acid)

作者：黄宁勇[1];唐颂起[1];徐志君[1];王庆海[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2004

卷号：17

期号：2

起止页码：285

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：端羟基聚乳酸;合成;表征;医用生物材料;共沸除水法;醇酸缩合反应

外文关键词：L-lactic acid;1,4-butanediol; hydroxyl-terminated polylactic acid; synthesis; coefficient of reaction process

摘要：采用共沸除水与醇酸缩合反应相结合的方法合成端羟基聚乳酸.通过L9(34)正交实验对合成工艺进行了研究,分析了抗氧剂TPP对反应的影响,并用1H-NMR和DSC对产物结构进行表征.结果表明,产物主要为聚乳酸-1,4-丁二醇(PLA-1,4-BD).和分子量相同的聚乳酸-1,4-丁二醇-聚乳酸(PLA-1,4-BD-PLA)比较, PLA-1,4-BD具有较高的Tg.
Hydroxyl-terminated polylactic acid has been synthesized in an acid-alcohol condensation reaction with eliminating the water by co-boiling. The reaction was studied through pre-designed orthogonal table L_9 (3~4). The effect of antioxidant TPP was discussed. The results of ~1H-NMR and DSC indicate that the strueture of the product is PIA-1,4-BD. Comparing with the PLA-1, 4-BD-PLA molecules which has the same molecular weight,the T_g of PLAOH is higher.