中文摘要：

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。

英文摘要：

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.