A novel perfluorocyclobutyl aryl ether-based graft copolymer via 2-methyl-1,4-bistrifluorovinyloxybenzene and styrene
A novel perfluorocyclobutyl aryl ether-based graft copolymer via 2-methyl-1,4-bistrifluorovinyloxybenzene and styrene
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DOI：
10.1016/j.polymer.2010.08.055
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发表时间：
2010-10
期刊：
影响因子：
4.6
通讯作者：
Hao Liu;Sen Zhang;Yongjun Li;Dong Yang;Jianhua Hu;Xiaoyu Huang
中科院分区：
文献类型：
--
作者：
Hao Liu;Sen Zhang;Yongjun Li;Dong Yang;Jianhua Hu;Xiaoyu Huang
通过芳基双三氟乙烯基醚单体的热逐步[2π +2 π]环加成聚合和苯乙烯的原子转移自由基聚合（ATRP）相结合，合成了一系列新型的含聚苯乙烯侧链的全氟环丁基芳基醚接枝共聚物。以2-甲基对苯二酚为原料，分两步合成了一种新型的芳基双三氟乙烯基醚单体2-甲基-1，4-双三氟乙烯基氧基苯，并通过该单体在二苯醚中的均聚反应制备了相应的端甲氧基全氟环丁基芳基醚均聚物。接着，该含氟聚合物的侧基甲基被N-溴代琥珀酰亚胺和过氧化苯甲酰单溴化，从而转化为ATRP引发基团。以CuBr/bpy为催化体系，在110°C下进行苯乙烯的本体原子转移自由基聚合（ATRP），并结合接枝策略，得到了分子量分布较窄（Mw/Mn≤1.38）的聚（2-甲基-1，4-双三氟乙烯氧基苯）-g-聚苯乙烯。这些含氟接枝共聚物在普通有机溶剂中显示出优异的溶解性。
A series of novel perfluorocyclobutyl aryl ether-containing graft copolymers with polystyrene side chains were synthesized by the combination of thermal step-growth [2π+2π] cycloaddition polymerization of aryl bistrifluorovinyl ether monomer and atom transfer radical polymerization (ATRP) of styrene. We first synthesized a new aryl bistrifluorovinyl ether monomer of 2-methyl-1,4-bistrifluorovinyloxybenzene in two steps using commercially available 2-methylhydroquinone as starting material and the corresponding perfluorocyclobutyl aryl ether-based homopolymer with methoxyl end groups was prepared through the homopolymerization of this monomer in diphenyl ether. Next, the pendant methyls of this fluoropolymer were mono-brominated by N-bromosuccinimide and benzoyl peroxide so as to be converted to ATRP initiation groups. The targeted poly(2-methyl-1,4-bistrifluorovinyloxybenzene)-g-polystyrene with relatively narrow molecular weight distributions (Mw/Mn≤1.38) was obtained by the combination of bulk ATRP of styrene at 110°C using CuBr/bpy as catalytic system and the grafting-from strategy. These fluorine-containing graft copolymers show excellent solubility in common organic solvents.