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RAFT聚合制备氟硅嵌段共聚物及结构性能
引用本文:赵镇,李慧,郭燕莉,王友付,韩哲文.RAFT聚合制备氟硅嵌段共聚物及结构性能[J].医学教育探索,2011,24(2).
作者姓名:赵镇  李慧  郭燕莉  王友付  韩哲文
作者单位:华东理工大学材料科学与工程学院, 上海 200237;华东理工大学材料科学与工程学院, 上海 200238;华东理工大学材料科学与工程学院, 上海 200239;华东理工大学材料科学与工程学院, 上海 200240;华东理工大学材料科学与工程学院, 上海 200241
基金项目:上海市自然科学基金(10ZR1407600)
摘    要:以三硫代酯封端的聚二甲基硅氧烷作为大分子链转移剂,通过可逆加成断裂链转移聚合(RAFT)制备了一系列聚二甲基硅氧烷-b-聚甲基丙烯酸十二氟庚酯 (PDMS-b-PDFHMA)二嵌段共聚物。利用凝胶渗透色谱(GPC)、傅里叶变换红外光谱(FTIR)、氢核磁共振谱(1H-NMR)对该嵌段共聚物的组成、结构和分子量进行了表征,并通过接触角测量对其表面性能进行了研究。结果表明,该嵌段共聚物具有预期结构,分子量可控,表面性能优异。

关 键 词:RAFT聚合    氟硅嵌段共聚物    表面性能    反应动力学

Synthesis and Characterization of Fluoro Silicone Block Copolymers Prepared via RAFT Polymerization
ZHAO Zhen,LI Hui,GUO Yan-li,WANG You-fu and HAN Zhe-wen.Synthesis and Characterization of Fluoro Silicone Block Copolymers Prepared via RAFT Polymerization[J].Researches in Medical Education,2011,24(2).
Authors:ZHAO Zhen  LI Hui  GUO Yan-li  WANG You-fu and HAN Zhe-wen
Institution:School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200238, China;School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200239, China;School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200240, China;School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200241, China
Abstract:A series of well defined polydimethylsiloxane-b-polydodecafluoroheptylmethacrylate diblock copolymers (PDMS-b-PDFHMA) were prepared via RAFT polymerization using trithiocarbonate termi nated polydimethylsiloxane as a macromolecular chain tranfer agent. The molecular weights and chemical structures of the fluoro silicone diblock copolymers were characterized by GPC, 1H-NMR and FT-IR. The effect of fluorine content on surface energy was also investigated by static contact angle measurement. Results show that dibockcopolymers have the controllable molecular weights and excellent surface properties.
Keywords:RAFT polymerization  fluoro silicone diblock copolymer  surface properties  kinetics
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