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The synthesis and properties of tetrafunctional epoxy resins
Author(s) -
Liu WenLiang,
Pearce Eli M.,
Kwei T. K.
Publication year - 1985
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.1985.070300716
Subject(s) - epoxy , glass transition , materials science , methylene , synthetic resin , polymer , thermal decomposition , alkyl , composite material , polymer chemistry , decomposition , chemistry , organic chemistry
Abstract N,N,N′,N′ ‐tetraglycidyl‐4,4′‐diaminodiphenylalkane epoxy resins with alkyl substituents on the methylene carbon were synthesized and characterized. The thermal and dynamic mechanical properties of these resins when cured with diaminodiphenylsulfone were compared with those of the cured unsubstituted epoxy resin. Although the resins have similar structures, the cured resin from the unsubstituted epoxy has the higher polymer decomposition temperature and glass transition temperature. The substituted epoxy resins have higher dynamic Young's moduli and loss moduli.