文献类型：期刊文献

英文题名：Synthesis and properties of novel polytriazoleimides derived from 1,2,3-triazole-containing diamines and aromatic dianhydrides

作者：E, Yanpeng[1];Wan, Liqiang[1];Zhou, Xiao'an[1];Huang, Farong[1];Du, Lei[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China

年份：2012

卷号：23

期号：7

起止页码：1092

外文期刊名：POLYMERS FOR ADVANCED TECHNOLOGIES

收录：;EI(收录号：20122615185762);WOS:【SCI-EXPANDED(收录号:WOS:000305570600009)】；

基金：The authors gratefully acknowledge the financial support of the National Basic Research Program of China (grant no. 5131101) and Shanghai Leading Discipline Subject (no. 165).

语种：英文

外文关键词：polytriazoleimide; 1; 2; 3-triazole-containing diamine; novel polyimide; high-performance film; gas separation membranes; adhesive

摘要：A new kind of 1,2,3-triazole-containing aromatic diamines were synthesized by the Cu(I)-catalyzed 1,3-dipolar cycloaddition reaction. These diamines were employed to synthesize a series of novel polytriazoleimides (PTAIs) by polycondensation with various aromatic dianhydrides in N,N-dimethylacetamide?(DMAc) via the conventional two-step method. The obtained polyimides were characterized by Fourier transform infrared, hydrogen-1 nuclear magnetic resonance, X-ray diffraction, differential scanning calorimetry, and thermogravimetric analysis techniques. The results show that the PTAIs are soluble in most of strong polar solvents and have inherent viscosity values of 0.470.68?dl/g (DMAc). PTAI films have tensile strengths of 60.6102.6?MPa and elongations at breakage of 3.04.1%, glass transition temperatures (Tg) of 208262 degrees C, and decomposition temperatures (at 5% weight loss) of 368401 degrees C in N2 atmosphere, which depend on the structure of the polymers. The PTAIs also exhibit good adhesion to copper and gas separation properties. Copyright (c) 2011 John Wiley & Sons, Ltd.