含二氮杂萘酮结构聚芳醚腈酮酮的合成及表征  

SYNTHESIS AND CHARACTERIZATION OF PHTHALAZINONE-CONTAINING POLY(ARYL ETHER NITRILE KETONE KETONE)S

作　　者：王明晶[1] 刘程[1] 刘志勇[1] 董黎明[1] 蹇锡高[1] 

机构地区：[1]大连理工大学高分子材料系辽宁省高性能树脂工程技术研究中心,大连116012

出　　处：《高分子学报》2007年第9期833-837,共5页Acta Polymerica Sinica

基　　金：国家"863"资助项目(项目号2003AA33G030);辽宁省科技攻关项目(项目号2003223003)资助

摘　　要：以5种含杂萘联苯结构的单体与2，6-二氯苯腈、1，4-二（4-氟代苯甲酰基）苯为原料进行亲核缩聚反应，制备了一系列含有杂萘联苯结构的新型聚芳醚腈酮酮树脂．其特性粘度在0．51～1．15dL·g^-1之间．采用FT-IR，示差扫描量热仪（DSC），热重分析仪（TGA）对聚合物的结构和性能进行了表征，结果表明，聚芳醚腈酮酮的玻璃化转变温度（Tg）在252～294℃之间，10％热失重温度（Td）在457℃以上，具有优异的耐热性能．聚芳醚腈酮酮均可溶解于N-甲基吡咯烷酮（NMP）、N，N-二甲基乙酰胺（DMAc）、和氯仿等极性非质子型有机溶剂中，聚合物均可溶解于NMP后浇铸得到透明的、韧性好的薄膜．Soluble, thermally stable phthalazinone-containing poly （ether nitrile ketone ketone）s （PPENKK） have been synthesized by the nucleophilic displacement reaction of five kinds of phthalazinone-containing monomers with 2,6-dichlorobenzonitrile （DCBN） and bis-1, 4- （4-fluorobenzoyl） benzene （ BFBB）. The polymerization reactions were conducted in sulfolane in the presence of K2CO3 to give high molecular weight polymers with intrinsic viscosities of 0.51 ～ 1.15 dL·g^-1. The structure of polymers obtained was characterized by FF-IR. The polymers showed amorphous nature as determined by wide angle X-ray diffraction （WAXD） and were readily soluble in a variety of polar sovents at room temperature, such as N-methyl-2-pyrrolidone （NMP）, N, N-dimethylacetamide （DMAc）, N, N-dimethylformamide （DMF）, chloroform, and so on, and could be easily cast into flexible and transparent films, which could be ascribed to the kink non-coplanar structure and ether linkages in the main chain. Moreover,the polymers exhibited outstanding thermal properties .The glass transition temperatures were from 252℃ to 294℃ ,and the temperatures for 10% weight loss in nitrogen were above 457℃.

关 键 词：杂萘联苯 聚芳醚腈酮酮 溶解性 耐热性 

分 类 号：TQ326[化学工程—合成树脂塑料工业]