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论文类型：期刊论文

发表时间：2012-03-01

发表刊物：POLYMERS FOR ADVANCED TECHNOLOGIES

收录刊物：SCIE、EI、Scopus

卷号：23

期号：3

页面范围：367-374

ISSN号：1042-7147

关键字：epoxy resins; silicon; synthesis; viscosity; electronic packaging

摘要：In this paper, two silicon-containing cycloaliphatic olefins were synthesized through the nucleophilic substitution reactions of cyclohex-3-enyl-1-methanol with di- or tri-chlorosilane compounds. Then, after epoxidation, two new cycloaliphatic epoxy resins with different epoxy groups were successfully prepared. Their chemical structures were confirmed by 29Si NMR, 1H NMR, and Fourier-transform infrared spectra (FTIR). The properties of cured products, including viscoelasticity, glass transition temperature (Tg), coefficient of thermal expansion, thermal stability and water absorption, were investigated. Compared to the difunctional epoxy resin, the trifunctional one exhibited a remarkably increased cross-linking density from 0.82 to 4.08 x 10(-3) mol/cm3 and Tg from 157 to 228 degrees C. More importantly, prior to curing, they had viscosities of only 240-290mPa sec at 25 degrees C, which were much lower than that of ERL-4221 (409mPa sec), providing the possibility of easy processing. The high glass transition temperatures, good thermal stabilities, and mechanical properties as well as excellent flowability endow the silicon-containing epoxy resins with promising potential in microelectronic packaging application. Copyright (C) 2011 John Wiley & Sons, Ltd.