高等学校化学学报

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含氰基高性能聚芳醚材料的合成与表征

陈何国, 王拴紧, 肖敏, 孟跃中   

  1. 光电材料与技术国家重点实验室, 中山大学光电及复合材料研究院, 广州 510275
  • 收稿日期:2006-07-04 修回日期:1900-01-01 出版日期:2007-03-10 发布日期:2007-03-10
  • 通讯作者: 王拴紧

Synthesis and Characterization of Poly(phthalazinone ether)s Containing Cyano Groups

CHEN He-Guo, WANG Shuan-Jin, XIAO Min, MENG Yue-Zhong   

  1. State Key Laboratory of Optoelectronic Materials and Technologies, Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, Guangzhou 510275, China
  • Received:2006-07-04 Revised:1900-01-01 Online:2007-03-10 Published:2007-03-10
  • Contact: WANG Shuan-Jin

摘要: 将合成的含氰基的双二氮杂萘酮单体与二氟芳香单体进行亲核取代反应, 制备了三种含氰基的新型聚芳醚, 并用TGA, DSC和GPC等分析手段对其综合性能进行表征. 结果表明, 含氰基聚芳醚具有优异的热稳定性(T5%>492 ℃)、较高的玻璃化转变温度(Tg=262~320 ℃)和良好的溶解性能, 易溶于氯代烷烃(如氯仿)和极性非质子性溶剂(如DMAc, DMF, NMP等).

关键词: 氰基, 聚芳醚, 高性能聚合物

Abstract: Three kinds of cyano-containing poly(phthalazinone ether)s with high molecular weights were successfully prepared from bisphthalazinone containing cyano groups and different activated dihalide monomers via a N—C coupling reaction. The properties of these polymers were determined by TGA, DSC, GPC, viscosity and solubility tests. TGA results demonstrate that all polymers exhibited an excellent thermal stability with 5% mass loss at T>492 ℃. Poly(phthalazinone ether)s had very high glass transition temperatures(Tg) ranging from 263 to 320 ℃ due to their rigid bisphthalazinone structure. All polymers were soluble in chloroform and polar aprotic solvents such as N,N-dimethylacetamide(DMAc), N,N-dimethylformamide(DMF), N-methyl-2-pyrrolidinone(NMP).

Key words: Cyano group, Poly(phthalazinone)s, Polymers with a high performance

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