AB_(2)型聚芴-聚苯乙烯嵌段共聚物的合成及其性能  

Synthesis and properties of AB_(2) type block copolymer consisting of polyfluorene and polystyrene

作　　者：程进[1,2] 刘长春 单玉华[2] 薛叙明[1] CHENG Jin;LIU Changchun;SHAN Yuhua;XUE Xuming(College of Chemistry and Pharmaceutical Engineering,Changzhou Vocational Institute of Technology and Engineering,Changzhou 213164,China;Jiangsu Province Key Laboratory of Fine Petrochemical Engineering,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州工程职业技术学院化工与制药工程学院,江苏常州213164 [2]常州大学精细石油化工江苏省重点实验室,江苏常州213164

出　　处：《合成树脂及塑料》2025年第1期42-46,50,共6页China Synthetic Resin and Plastics

基　　金：常州工程职业技术学院2022年有机发光二极管材料改性研究项目(11130900122003);江苏省精细石油化工重点实验室开放课题基金资助项目(KF2203)。

摘　　要：以2,6-二羟基碘苯为分子架构骨架,通过铃木宫浦反应得到末端为双(2-溴代丙烯酸)的聚芴,再利用聚芴引发苯乙烯的原子转移自由基聚合得到AB_(2)型聚芴-聚苯乙烯嵌段共聚物,并将该嵌段共聚物与均聚芴的性能进行比较。结果表明:两者具有相似的热性能和光致发光稳定性,嵌段共聚物表现出略高的β相(即平面化高分子链结构)组成,其电子迁移率也从均聚芴的4.5×10^(-7)cm^(2)/(V·s)上升到了AB2型嵌段共聚物的1.3×10^(-6)cm^(2)/(V·s)。2,6-Dihydroxyiodobenzene was used as the core molecular backbone to obtain polyfluorene with terminal bis(2-bromoacrylate)groups via Suzuki-Miyaura reaction,which was then employed to initiate the atom transfer radical polymerization of styrene,yielding an AB_(2)-type polyfluorene-polystyrene block copolymer.This block copolymer was compared with polyfluorene homopolymer.The results show that both exhibit similar thermal properties and photoluminescence stability.The block copolymer demonstrates a slightly higher content of the β-phase(a planar polymer chain structure),whose electron mobility based on this AB_(2)-type block copolymer is increased from 4.5×10^(-6) cm2/(V·s)in the homopolymer to 1.3×10^(-6) cm^(2)/(V·s).

关 键 词：AB_(2)型 聚芴 聚苯乙烯 嵌段共聚物 热性能 电子迁移率 

分 类 号：TQ423[化学工程] TQ325