ATRP法合成PMMA-b-PS-b-PFx-14三嵌段共聚物  

THE SYNTHESIS OF PMMA-b-PS-b-PFx-14 BY USING ATRP TECHNIQUE

作　　者：李玉廷 王瑾珊[2] 张岩[2] 张伟[2] 黄家贤[2] 

机构地区：[1]泰达生物科技股份有限公司,天津300457 [2]南开大学化学系,天津300071

出　　处：《高分子材料科学与工程》2003年第4期52-55,共4页Polymer Materials Science & Engineering

摘　　要：首先通过原子转移自由基聚合 (ATRP)得到了末端含卤素的聚甲基丙烯酸甲酯 ,以这种 PMMA为大分子引发剂 ,引发苯乙烯的 ATRP反应 ,得到了末端含卤素的 PMMA- PSt双嵌段共聚物。再以这种双嵌段共聚物大分子为引发剂 ,引发含氟丙烯酸酯 Fx- 14的 ATRP反应 ,得到了一种 PMMA- PSt-Fx- 14三嵌段共聚物。通过 GPC、核磁、粘度等数据证实了该聚合物的结构 ,并详细讨论了由于 PMMA-PSt- Fx- 14在溶液中的线团行为所产生的Halogen-terminated PMMA was used as macroinitiator to initiate the atom transfer radical polymerization (ATRP) of styrene; thus halogen-terminated PMMA-b-PS was obtained. Fluorine-containing obtained triblock copolymer (PMMA-PS-PFx-14) can be synthesized by the atom transfer radical polymerization of Fx-14 initiated by halogen-terminated PMMA-b-PS. The diblock and triblock copolymers strucures were confirmed. The molecular weights of the polymers were obtained by GPC, NMR, viscosity method etc. And the properties of the block copolymers were studied in details by 1H-NMR, 19F-NMR, DSC, TG, IR, GPC, etc. There is an abnormal behavior in the GPC measurement of the PMMA-PS-PFx-14 triblock copolymer solution; this behavior was by the oleophobicity of the fluorine-containing segment.

关 键 词：ATRP法 合成 PMMA-b-PS-b-PFx-14 三嵌段共聚物 原子转移自由基聚合 嵌段共聚物 含氟聚合物 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业] TQ316.344