医学文献：聚乳酸-聚乙二醇-聚乳酸三嵌段共聚物的降解塑料耐磨性我：高建文，廖凯荣，全大萍，卢泽俭学术论文联结：小结：A series of polylactic acid (PLA) - polyethylene glycol (PEG) - polylactic acid (PLA) triblock copolymers were prepared by ring opening polymerization of lactide using stannous octoate as initiator and polyethylene glycol as co initiator The influence of PEG molecular weight and propylene ester/PEG molar ratio on the hydrolysis behavior of copolymers was investigated by examining the changes in intrinsic viscosity [η], mass, and thermal behavior of copolymers during hydrolysis in physiological saline The results indicate that PEG blocks have a significant impact on the hydrolysis rate of copolymers When the molar ratio of propylene glycol/PEG is constant, the larger the molecular weight of PEG, the easier it is for the copolymer to hydrolyze; When the PEG block length is constant, the higher the molar ratio of propylene ester/PEG, the slower the hydrolysis rate of the copolymer

以坚辛亚锡为出现剂,聚乙二醇大原子为共出现剂采取丙交酯开环缩聚分离纯化了系列产品聚乳酸(PLA)-聚乙二醇(PEG)-聚乳酸(PLA)三嵌段共聚物.从共聚物在生理性食盐水再生蛋白质水解时的特点稠度[η],高质量和热行为表现表现的转变,考察学习了含PEG分子结构量和丙交酯/PEG摩尔进料核对共聚物蛋白质水解行为表现表现的引响.最终结果呈现,PEG嵌段对共聚物的淀粉蛋白质水解反应速率有最重要引响.丙交酯/PEG摩尔装料比务必时,PEG分子结构量越大,共聚物更最易淀粉蛋白质水解反应;PEG嵌段长宽高务必时,丙交酯/PEG摩尔装料比越大,共聚物淀粉蛋白质水解反应速率比效较慢.相关推存：mPEG-CH3mPEG-tri-Glutamic AcidmPEG-di-Glutamic AcidmPEG-FAmPEG-PEI(25K)mPEG-SBAmPEG-PCL(3K)mPEG-SS-C30mPEG-PCL(10K)mPEG-PCL(12K)mPEG-AlkenemPEG-DFmPEG-DBCO以下新闻稿件文章特征当下杂志或资料，如果发现侵犯知识产权请认识他们删出！