文献类型：期刊文献

英文题名：Synthesis and characterization of novel polytriazoleimides by CuAAC step-growth polymerization

作者：Zhou, Xiao'an[1];Wan, Liqiang[1];Hu, Yanhong[1];E, Yanpeng[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：2010

卷号：42

期号：3

起止页码：216

外文期刊名：POLYMER JOURNAL

收录：;EI(收录号：20101212777886);WOS:【SCI-EXPANDED(收录号:WOS:000275484800004)】；

基金：We gratefully acknowledge the financial support of the National High Technology Research and Development Program of China (Grant no. 2002A305103) and the National Basic Research Program of China (Grant no. 5131101).

语种：英文

外文关键词：click chemistry; polytriazoleimide; step-growth polymerization

摘要：Cu(1)-catalyzed 1,3-dipolar cycloaddition step-growth polymerization was exploited in the synthesis of a novel class of polytriazoleimides. The polymerization with diazides and imide-containing dialkynes was readily carried out under mild conditions. The chemical structures of the resulting novel polyimides were characterized by Fourier transform infrared and nuclear magnetic resonance. These polymers exhibited good solubility in common polar organic solvents such as N-methyl-2-pyrrolidinone, N,N-dimethylacetamide, dimethylformide and dimethylsulfoxide. The flexible polytriazoleimide films were easily prepared from homogeneous polyimide solutions. The films had good mechanical properties with tensile strengths of 76.2-92.4 MPa as well as elongations at breakage of 4.8-6.9%. The resulting polytriazoleimide films showed a glass transition temperature of 221-254 degrees C and a decomposition temperature (at 5% weight loss) of 365-377 degrees C in nitrogen. Polymer Journal (2010) 42, 216-222; doi:10.1038/pj.2009.337; published online 13 January 2010