文献类型：期刊文献

英文题名：Curing kinetics and structural changes of a of Di[(N-m-acetenylphenyl) phthalimidel Ether/[(Methyl) diphenylacetylene] silane copolymer

作者：Dai, ZL; Chen, Q; Ni, LZ; Song, N; Zhang, WK

机构：[1]E China Univ Sci & Technol, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2006

卷号：100

期号：3

起止页码：2126

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000236150300054)】；

语种：英文

外文关键词：activation energy; crosslinking; kinetics (polym.); NMR; structure

摘要：Differential scanning calorimetry, Fourier transform infrared (FTIR) spectroscopy, and C-13-NMR were used to characterize the Curing kinetics and structural changes of a copolymer of di[(N-m-acetenylphenyl) phthalimide] ether (DAIE) and [(methyl) diphenylacetylene] silane (MDPES). The results show that the apparent activation energy (E) and reaction order (n) calculated according to the Kissinger method were nearly the same as those calculated according to the Ozawa method. F was 160.4 kJ/mol and n was 0.96 with the Kissinger method, and E was 1.58.1 kJ/mol and n was 0.95 with the Ozawa method. The FTIR and solid-state C-13-NMR results also indicate that with increasing curing temperature, the peaks assigned to Si-H and C C bonded to phenylene carbons decreased, broadened, and finally vanished, whereas the peaks assigned to the C=C carbons and phenyl carbons increased and broadened. Crosslinking reactions in the curing of the DAIE/MDPES copolymer were possible due to the hydrosilylation reaction and the Diels-Alder reaction. (c) 2006 Wiley Periodicals, Inc.