羟化含氟嵌段共聚物的合成及其自组装行为研究

Synthesis and self-assembly behavior of fluorinated block copolymer containing hydroxylic groups

用α-溴代丙酸乙酯（EPN—B）／氯化亚铜（CuCl）／联二吡啶（bpy）作为催化引发体系，环己酮为溶剂，进行甲基丙烯酸2，2，2-三氟乙酯（TFEMA）的原子转移自由基聚合（ATRP），得到单分散PTFEMA—X预聚体。并以此预聚体为大分子引发剂引发甲基丙烯酸-β-羟乙酯聚合，得到分子质量可控、分子质量分布窄的聚甲基丙烯酸2，2，2-三氟乙酯-b-聚甲基丙烯酸-β-羟乙酯嵌段共聚物，用FTIR、^1H—NMR、GPC等对产物的结构与性能进行了表征。同时利用动态激光光散射（DLS）对嵌段共聚物的自组装行为进行了研究。

This paper describes the application of atom transfer radical polymerization of 2,2,2-trifluoroethylmethacrylate by using ethyl-2-bromopropionate （EPN-B/CuCl/bpy） as the initiating system and cyclohexanone as solvent. By using PTFEMA-X as the macroinitiator the well-defined poly（2,2,2-trifluoroethyl methacrylate）-b-poly （2-Hydroxyethyl methacrylate） diblock copolymer （PTFEMA-b-PHEMA） is prepared and characterized by ^1HNMR, FTIR and GPC. Furthermore, Self-assembly behavior of fluorinated block copolymer have been studied by DLS.