Chun-Shan Wang, A. Mendoza
Feb 1, 1991
Citations
0
Influential Citations
5
Citations
Journal
Polymer Bulletin
Abstract
SummaryMeta-halogenated phenols are generally known to be more chemically and thermally stable than their ortho-or para-halogenated counterparts. A novel compound, 2,6-dibromo-3,5-dimethyl-4-hydroxybenzyl ether, is synthesized and is being used to incorporate this stable meta-bromo-phenol moiety into epoxy resins. In electronic encapsulation applications, epoxy derivatives of novolacs containing meta-bromo-phenol have exhibited exceptional hydrolytic and thermal stability compared to the conventional tetrabromobisphenol-A epoxies which are ortho-brominated phenolics. The meta-bromo-phenol moiety contributes to the extended device reliability life while providing fire retardency property.