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引入三氟甲基侧基对对苯醚型聚酰亚胺薄膜吸水性及水蒸汽透过性的影响

韩宝春,吴作林,张春华,朱丹阳,丁孟贤,杨正华*   

  1. (中国科学院长春应用化学研究所， 高分子复合材料工程中心 长春130022)
  • 收稿日期:2012-06-26 修回日期:2012-08-30 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 杨正华，研究员; Tel:0431-85262272; Fax:0431-85685653; E-mail:zhhyang@ciac.jl.cn; 研究方向：高性能聚酰亚胺材料
  • 基金资助:
    吉林省科技发展计划项目(20106022)

The Effects of Introducing Trifluoromethyl Side Groups to Diphenyl Ether-type Polyimide Films on Their Water Absorption and Water Vapor Permeability

HAN Baochun, WU Zuolin, ZHANG Chunhua, ZHU Danyang, DING Mengxian, YANG Zhenghua*   

  1. (Polymer Composites Engineering of Laboratory,Changchun Institute of Applied Chemistry,
    Chinese Academy of Sciences, Changchun 130022,China)
  • Received:2012-06-26 Revised:2012-08-30 Published:2013-05-10 Online:2013-05-10

PDF

1898

被引次数

9 | 3

摘要： 合成了3种含三氟甲基的芳香二胺，进而与3,3′,4,4′-联苯四甲酸二酐(BPDA)缩聚，得到3种对苯醚型含氟聚酰亚胺薄膜，并由4,4′-二氨基二苯醚（4,4′-ODA）与BPDA缩聚得到聚酰亚胺薄膜。 对4种聚酰亚胺薄膜的水蒸汽透过率、吸水性和热学性能的测试结果表明，其中聚合物PI-1（2,2′-BTF-4,4′-BADE+BPDA；BTF：双三氟甲基；BADE：二氨基二苯醚）的水蒸汽透过率为7.70 g/（h·m2），吸水率为0.67%，玻璃化转变温度为259.74 ℃，质量损失5%的温度为521.40 ℃,具有良好的水蒸汽透过性和低吸水性。

关键词: 聚酰亚胺, 三氟甲基, 合成, 水蒸汽透过率, 吸水性

Abstract: Three aromatic diamines containing fluorine were synthesized. In addition, three kinds of diphenyl ether trifluoride polyimide films were prepared by polycondensation, and the polyimide film was prepared by using 4,4′-diaminodiphenylether(BADE) with 3,3′,4,4′-biphenyltetracarboxylic dianhydride(BPDA) by the same method. The water vapor permeability, water absorption and thermal properties of these four kinds of polyimide film were studied. The results show that water vapor permeability of polymer PI-1(2,2′-BTF-4,4′-BADE+BPDA， BTF：bis(trifluoromethyl)) is 7.70 g/(h·m2), the water absorption is 0.67%, the glass transition temperature is 259.74 ℃，and the temperature of mass loss of 5% is 521.40 ℃, the polymer has good water vapor permeability and low water absorption.

Key words: polyimides, trifluoromethyl, synthesis, water vapor permeability, water uptake

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