水性聚酰亚胺前驱体性能研究  

Study on the Performance of the Waterborne Polyimide Precursor

作　　者：肖万宝 刘长威[1] 曲春艳[1] 杨海冬[1] 冯浩[1] 侯翔 XIAO Wan-bao;LIU Chang-wei;QU Chun-yan;YANG Hai-dong;FENG Hao;HOU Xiang(Institute of Petrochemistry,Heilongjiang A cademy of Sciences,Harbin 150040,China)

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040

出　　处：《化学与粘合》2018年第5期346-350,共5页Chemistry and Adhesion

摘　　要：以水相聚合的方法合成了聚酰亚胺(PI),研究其前驱体的最佳反应条件,并对比其性能。实验证明,在温度为40~70℃下反应60~120min、固含量18%为合成水相PI前驱体的最佳反应条件,其相对分子质量Mn:1.5×10~5,Mw:2.1×105,Mw/Mn:1.4,T_g可达377℃,T_(d5)可达593℃,T_(d10)可达611℃。并且水相PI前驱体及其固化薄膜的性能良好,更加环保。The polyimide（PI） was synthesized by aqueous polymerization, and the optimal reaction conditions and properties were studied. It was found that under the optimum reaction conditions（reacted at 40~70℃ for 60~120 min with a solid content of 18%）, the number-average molecular weight（Mn）, weight-average molecular weight（Mw）, molecular weight distribution（Mw/Mn）, Tg, T（d5） and T（d10） of the produced water-based PI precursor was 1.5×10~5 g/mol, 2.1×10~5 g/mol, 1.4, 377℃, 593℃ and 611℃ respectively. And the precursor and its cured film showed excellent properties, and the water-based precursors was more environment-friendly.

关 键 词：水相聚合 热性能 聚酰亚胺 

分 类 号：TQ633[化学工程—精细化工]