Premium
Epoxy resins based on aromatic glycidylamines. V. Shelf life of TGDDM‐based epoxy resins
Author(s) -
Podzimek Š.,
Dobáš I.,
Kubín M.
Publication year - 1992
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.1992.070440913
Subject(s) - epoxy , materials science , composite material , polymer chemistry , chemistry
The effect of aging on resin composition was investigated as a part of a study concerned with the evaluation of epoxies containing N , N , N ′, N ′‐tetraglycidyl‐4,4′‐diaminodiphenylmethane (TGDDM). Long‐term stability of three different epoxy resins based on TGDDM and their mixtures with 4,4′‐diaminodiphenylsulfone (DDS) was followed at 23 ± 2°C at a relative humidity ranging from 45% to 55%, by means of GPC and HPLC; short‐term stability of the resins was evaluated at 125°C.