含氟二胺的合成及透明聚酰亚胺薄膜的性能研究  

Synthesis of Fluorinated Diamine and Properties Study of Transparent Polyimide Film

作　　者：韩青霞[1] 宋丽贤[1] 张平[1] 谷铮[1] 黄樯[1] 康明[1] 黄渝鸿[1,2] 

机构地区：[1]西南科技大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,四川绵阳621010 [2]中国工程物理研究院总体工程研究所,四川绵阳621900

出　　处：《绝缘材料》2013年第3期51-55,共5页Insulating Materials

基　　金：中国工程物理研究院科学技术基金重点项目(2009A03018);国家自然基金委-中国工程物理研究院联合基金项目(11076016、11076010)

摘　　要：为改善聚酰亚胺薄膜的透明性和溶解性,通过Williamson醚化反应合成了高纯度2,2-双[4-(4-氨基-2-三氟甲基苯氧基)苯基]六氟丙烷,与3,3′,4,4′-联苯四酸二酐(BPDA)在溶剂中缩聚得到聚酰胺酸,热亚胺化得到透明耐高温聚酰亚胺薄膜。同时制备了联苯二酐/2,2-双[4-(4-氨基-2-三氟甲基苯氧基)苯基]丙烷和联苯二酐/二苯醚二胺两种聚酰亚胺薄膜,并对3种薄膜的热稳定性、透光率、溶解性能进行对比研究。结果表明:在联苯型聚酰亚胺分子结构中引入的含氟基团越多,薄膜的透明性和溶解性越好,且不影响薄膜优良的耐热性能。To improve the transparency and solubility of polyimide film, high purity 2,2-bis[4-（2-trifluoro- methyl-4-aminophenoxy）phenyl]hexafluoropropane was synthesized by Williamson etherification reaction, and the polyamide acid was prepared by polycondensation reaction with 3,3＇,4,4＇-biphenyltetracarboxylic acid dianhydride（BPDA） in the solvent, then the transparent and heat-resistance polyimide（PI） film was prepared by thermal imidization. Meanwhile two BPDA/BAPP-2TF and BPDA-ODA polyimide films were prepared by the same method, and the thermal stability, optical transparency and solubility of the three PI films were studied. The results show that the more the fluorinated groups in the biphenyl polyimide molecular structure, the better the transparency and solubility of the films are, and do not change the good thermal stability of the film.

关 键 词：2 2-双4-(4-氨基-2-三氟甲基苯氧基)苯基六氟丙烷 聚酰亚胺薄膜 透明性 热性能 

分 类 号：TM215.3[一般工业技术—材料科学与工程] TQ323.7[电气工程—电工理论与新技术]