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Enhancement of processability of cyanate ester resin via copolymerization with epoxy resin
Author(s) -
Liang Guozheng,
Zhang Mingxi
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10872
Subject(s) - cyanate ester , epoxy , diglycidyl ether , materials science , differential scanning calorimetry , bisphenol a , copolymer , composite material , polymer chemistry , bisphenol , polymerization , thermal stability , formaldehyde , izod impact strength test , polymer , ultimate tensile strength , chemistry , organic chemistry , physics , thermodynamics
Abstract Two new matrices with enhanced processing characteristics, made from bisphenol A cyanate ester (BCE) and diglycidyl ether of bisphenol A epoxy resin or o ‐cresol formaldehyde novolac epoxy resin, were developed. Solubility, differential scanning calorimetry (DSC), gel time, and tack experiments were used to detect the processing characteristics of the two new systems and neat BCE. Results show that the two new systems have enhanced processability compared with neat BCE, especially improved tack and drape properties of prepregs, and faster thermal polymerization rate. In addition, the two new cured systems have more than two times improved impact strength without a great decrease in excellent dielectric properties or thermal and hot–wet resistance of neat BCE resin. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 2377–2381, 2002