三臂支化PLLA鄄PDLA嵌段共聚物的合成及立构复合结晶行为.PDFVIP

See discussions, stats, and author profiles for this publication at: /publication/289185033 Synthesis of Tri-arm PLLA-PDLA Block Copolymers and Its Stereocomplex Crystallization Behavior Article in hemical Journal of hinese Universities - hinese Edition- · September 2012 DOI: 10.3969/j.issn.0251-0790.2012.09.038 ITATIONS READS 5 25 4 authors, including: henyang Zhao Su-Ming Li Nanyang Technological University European Institute of Membranes 26 PUBLI ATIONS 381 ITATIONS 1 0 PUBLI ATIONS 9,298 ITATIONS SEE PROFILE SEE PROFILE Zhongyong Fan Fudan University 0 PUBLI ATIONS 639 ITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: olloidal systems (hydrogels, micelles, vesicles) for pharmaceutical applications View project All content following this page was uploaded by henyang Zhao on 22 August 2016. The user has requested enhancement of the downloaded file. Vol.33 高等 学校 化 学 学报 No.9 2012年9月 摇 摇 摇 摇 摇 摇 CHEMICALJOURNAL OF CHINESE UNIVERSITIES摇 摇 摇 摇 摇 摇 2092~2098 三臂支化PLLA鄄PDLA嵌段共聚物的合成 及立构复合结晶行为 1,2 1 1 1 石文鹏 ,赵辰阳 ,李速明 ,范仲勇 (1. 复旦大学材料科学系,上海200433;2. 常州轻工职业技术学院轻化系,常州213164) 摘要摇 以三羟甲基乙烷为起始剂,开环聚合L鄄丙交酯(LLA),合成三臂支化左旋聚乳酸(PLLA)预聚物. 采 用端基活化技术对预聚物进行端羟基活化,再与D鄄丙交酯(DLA)进行开环聚合,合成了不同分子量的三臂 支化左旋聚乳酸鄄右旋聚乳酸(PLLA鄄PDLA)嵌段共聚物. 采用核磁共振谱和凝胶渗透色谱等对样品的结构和 分子量进行测试,结果表明,合成的嵌段共聚物链结构具有链段立构规整度和高分子量的