文献类型：期刊文献

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

作者：Dai, Zeliang[1]; Chen, Qi[1]; Ni, Lizhong[1]; Song, Ning[1]; Zhang, Wenkai[1]

机构：[1] Key Laboratory for Ultrafine Materials, Ministry of Education, East China University of Science and Technology, Shanghai 200237, 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：EI(收录号：2006179842220)

语种：英文

外文关键词：Activation energy - Aromatic compounds - Crosslinking - Curing - Differential scanning calorimetry - Fourier transform infrared spectroscopy - Nuclear magnetic resonance - Organic polymers

摘要：Differential scanning calorimetry, Fourier transform infrared (FTIR) spectroscopy, and 13C-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. E was 160.4 kj/mol and n was 0.96 with the Kissinger method, and E was 158.1 kj/mol and n was 0.95 with the Ozawa method. The FTIR and solid-state 13C-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. ? 2006 Wiley Periodicals, Inc.