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Toughening of highly cross‐linked polycyanurates with epoxy‐ and phenol‐terminated butadiene‐acrylonitrile rubbers
Author(s) -
Uhlig Christoph,
Bauer Jörg,
Bauer Monika
Publication year - 1995
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19950930111
Subject(s) - acrylonitrile , epoxy , natural rubber , materials science , phenol , covalent bond , gel permeation chromatography , composite material , cyanate , polymer chemistry , polymer , copolymer , chemistry , organic chemistry
Polycyanurate from dicyanate of bisphenol A was modified with epoxy‐ and phenol‐terminated butadiene‐acrylonitrile rubbers. Rubber‐resincopolymerisation was followed by multiple‐detection gel‐permeation chromatography (GPC). It was found that both the epoxy‐terminated and phenol‐terminated rubbers react with the cyanate and thus are covalently bound with the polycyanurate network. The influence of rubber content, acrylonitrile content and type of end group on phase structure was investigated using dynamic mechanical analysis. Fracture toughness was measured for these modifications.