文献类型：期刊文献

英文题名：Synthesis and thermal cure of diphenyl ethers terminated with acetylene and phenylacetylene

作者：Wang, Fan[1]; Xu, Jinfeng[2]; Zhang, Jian[1]; Huang, Farong[1]; Shen, Yongjia[2]; Du, Lei[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Adv Mat Lab, Shanghai 200237, Peoples R China

年份：2006

卷号：55

期号：9

起止页码：1063

外文期刊名：POLYMER INTERNATIONAL

收录：;EI(收录号：20063410082844);WOS:【SCI-EXPANDED(收录号:WOS:000239861800010)】；

语种：英文

外文关键词：diacetylene diphenyl ether; diphenylacetylene diphenyl ether; curing; reaction kinetics

摘要：Two kinds of novel compounds, diphenylacetylene diphenyl ether (DPADPE) and diacetylene diphenyl ether (DADPE), were prepared and polymerized under heating. Raman, DSC and C-13 COMAS NMR analyses were used for studying the polymerization reaction. DPADPE and DADPE have melting points at 190 and 79 degrees C, with exothermic peaks of the DSC curves at 375 and 215 degrees C for curing, respectively. Raman and C-13 CP/MAS NMR spectra show that DPADPE could be cured at a temperature higher than 300 degrees C and DADPE at a lower temperature of higher than 150 degrees C. The kinetic parameters for the thermal crosslinking reactions were obtained by the Ozawa method and the results show that the apparent activation energy is 152 kJ mol(-1) for DPADPE and 109 kJ mol(-1) for DADPE. An ene-yne Straus product appears in the cured DADPE, whereas this product has not been identified in the cured DPADPE. The cured DPADPE and DADPE demonstrate good thermal and thermo-oxidative stability. (C) 2006 Society of Chemical Industry.