文献类型：期刊文献

英文题名：1,3-dipolar cycloaddition polymerization of bispropargyl ether of bisphenol-A with 4,4′-biphenyl dibenzyl azide and their thermal analyses

作者：Hu, YH; Luo, YH; Wan, LQ; Qi, HM; Huang, FR; Du, L

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Eighth Acad China Aerosp Corp, Shanghai 200233, Peoples R China

年份：2005

期号：4

起止页码：560

外文期刊名：ACTA POLYMERICA SINICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000231546500017)】；

语种：英文

外文关键词：bispropargyl ether of bisphenol-A ( BPEBA); azide; 1,3-dipolar cycloaddition; triazole; low temperature curing

摘要：Two monomers, bispropargyl ether of bisphenol-A (BPEBA) and 4,4'-biphenyl dibenzyl azide (BPDBA) were synthesized and characterized with FT-IR, H-1-NMR and elementary analysis. Their bulk polymerization was conducted in an oven, and a polytriazole was obtained by the 1,3-dipolar cycloaddition polymerization. The variation of the reactively functional groups during the polymerization was traced by FT-IR, the polymerizing reaction of BPEBA with BPDBA and its kinetics were investigated by using differential scanning calorimetry (DSC) at a variety of heating rates. Some kinetic parameters including the reaction order, activation energy and pre-exponential factor were obtained with the Kissinger and the Ozawa methods. The thermal stability of the polymer. was evaluated with TGA. The results showed that BPEBA and BPDBA were easy to form polytriazole by I, 3-dipolar reaction. The polymerizing reaction happened at low temperature, i.e. 70 degrees C the reaction was a one order reaction, the activation energy Delta E = 84.6 kJ/mol, and the pre-exponential factor A = 4.865 x 10(10) min(-1). The polymer exhibited good thermal stability.