文献类型：期刊文献

英文题名：Synthesis and Properties of Novel Dicyanate with Low Dielectric and Water Absorption Performance

作者：Zhang, Zhongyun[1];Yu, Ruobing[1];Wang, Fan[1];Wang, Jialiang[1];Jiao, Yangsheng[1]

机构：[1]E China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2011

卷号：120

期号：6

起止页码：3716

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20111113750600);WOS:【SCI-EXPANDED(收录号:WOS:000288393100071)】；

语种：英文

外文关键词：low-dielectric polymer; ortho-methylation; water absorption; cyanate ester

摘要：The 1,4-bis (3,5-dimethyl-4-cyanatobenzyl) benzene (BBZCy) was synthesized successfully by the reaction of 1,4-bis (3,5-dimethyl-4-hydroxybenzyl) benzene(BBZ) with cyanogen chloride in the presence of triethylamine at -5-0 degrees C. Its structure was confirmed by means of FTIR, elemental analysis, MS, and H-1 NMR spectra. The monomer of BBZCy was cured by itself or cured with catalysts to form sym-triazine structure. Thermal properties of cured BBZCy were studied using DSC, DMA, TMA, and TGA. Compared with the commercial bisphenol A dicyanate resin (BADCy), the cured BBZCy resin exhibited a lower dielectric constant (2.66 at 1 GHz), a lower dissipation factor (0.0054 at 1 GHz), lower water absorption (0.8% at 100 h), less thermal stability, and lower glass transition temperature. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 120: 3716-3723, 2011