Moisture absorption by tetraglycidyl 4,4′ ‐diaminodiphenyl methane/4,4′‐diaminodiphenl sulfone epoxies containing brominated epoxy copolymers

J. Goobich*, G. Marom

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The effect on moisture absorption of introducing bromine into epoxy resins is investigated. The research is carried out with a tetraglycidyl 4,4′‐diaminodiphenyl methane/4,4′‐diaminodiphenyl sulfone system, and compared with a reference system of diglycidyl ether of bisphenol A/diaminodiphenyl methane epoxy, both systems containing brominated reactive epoxy additives. The results indicate that the presence of bromine reduces drastically the rate and the maximum level of moisture absorption. The presence of bromine is shown to have only a small effect on the high‐temperature properties and on the glass‐transition temperatures of the dry resins. Moreover, due to their lower moisture absorption capacity, the glass‐transition temperatures of the wet brominated resins are higher than the counterparts of the original bromine‐free epoxies.

Original languageEnglish
Pages (from-to)1052-1056
Number of pages5
JournalPolymer Engineering and Science
Volume22
Issue number16
DOIs
StatePublished - Nov 1982

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