含环氧侧基酚酞聚芳醚酮的合成及其自固化  

Synthesis of Phenolphthalein Poly(ether ketone) with Epoxy Side Group and Its Self-Curing

作　　者：王红华[1] 关兴华[1] 王志鹏[1] 周光远[1,2] 李存峰 

机构地区：[1]中国科学院长春应用化学研究所,生态环境高分子材料重点实验室,长春130022 [2]常州储能材料与器件研究院,常州213002

出　　处：《应用化学》2013年第8期974-976,共3页Chinese Journal of Applied Chemistry

摘　　要：由3,3'-双(4-羟基苯基)苯并吡咯酮(HPP)和4,4'-二氟二苯酮经亲核缩聚合成聚芳醚酮(PEK-H),再经与环氧氯丙烷(ECH)的亲核取代反应,制得了一种含量可控的环氧侧基酚酞聚芳醚酮(PEK-HE)。改变ECH的投料量,可调控环氧侧基在聚合物中的含量。采用FTIR、1H NMR和TGA等技术对聚合物进行了结构表征与性能测试,并考察了经自固化后聚合物涂膜的性能。涂膜热稳定性较固化前明显提高,5%热失重温度均在450℃以上。涂膜具有优异的热性能和机械性能:耐温(350±20)℃;冲击强度高于100 kg·cm。A novel cardo poly（aryl ether ketone） bearing pendant epoxy group with controlled content（PEK-HE） was prepared,by nucleophilic polycondensation from 3,3-bis（4-hydroxyphenyl） benzo pyrrolone（HPP） with 4,4′-diflorobenzophenone, followed by a substitution reaction with epichlorohydrin（ECH）. The content of epoxy side group could be controlled via altering the amount of reactant monomer. Structure and properties were characterized and tested by FTIR, 1H NMR, TGA, etc. Properties of the PEK-HE coating were investigated after self-curing. Thermal stability of the coating layer was obviously improved compared to that before curing, and 5% mass loss temperature was all over 450 ℃. The layers had excellent thermal and mechanical properties： heat-resistant temperatures were （350±20） ℃, the impact strength were all above 100 kg·cm. Thus the PEK-HE was expected for the application of high performance self-curing coating.

关 键 词：酚酞聚芳醚酮 功能化制备 环氧侧基 可控 自固化 高性能涂料 

分 类 号：O631.5[理学—高分子化学]