文献类型：期刊文献

英文题名：Liquid crystalline epoxy resin modified cyanate ester/epoxy resin systems

作者：Yu, Yingfeng[1];Gan, Wenjun[2];Liu, Xiaoyun[3];Li, Shanjun[1]

机构：[1]Fudan Univ, Key Lab Mol Engn Polymers, Minist Educ, Dept Macromol Sci, Shanghai 200433, Peoples R China;[2]Shanghai Univ Engn Sci, Dept Macromol Mat & Engn, Coll Chem & Chem Engn, Shanghai 200065, Peoples R China;[3]E China Univ Sci & Technol, Dept Polymer Sci & Engn, Shanghai 200237, Peoples R China

年份：2008

卷号：109

期号：5

起止页码：2964

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20083411473125);WOS:【SCI-EXPANDED(收录号:WOS:000257442900029)】；

语种：英文

外文关键词：liquid crystalline polymers; modification; thermosets; mechanical properties; thermal properties

摘要：Liquid crystalline epoxy resin (LCE) modify cyanate ester/epoxy resin blend systems were studied by scanning electron microscope, polarizing optical microscope, thermogravimetric analyzer, differential scanning calorimetry, thermal mechanical analysis, and rheometers. With the addition of LCE resin, the blends showed both an enhanced curing rate and increased glass transition temperature of cured samples. The phase structures of the blends changed from homogenous to liquid crystalline phase when the content of LCE was increased. At the same time, the mechanical properties were also improved and thermal expansion coefficients were lowed down. The thermal degradation temperatures showed little differences, while the residue char yields were slightly increased with the addition of LCE. (c) 2008 Wiley Periodicals, Inc.