Poly(2,6-dimethyl-1,4-phenylene ether) (PPO®) capping and its significance in the preparation of PPO®/epoxy laminate

• Published in: Journal of applied polymer science Vol. 59; no. 3; pp. 473 - 481
• Main Authors: Chao, Herbert S.-I., Whalen, Jana M.
• Format: Journal Article
• Language: English
• Published: New York Wiley Subscription Services, Inc., A Wiley Company 18.01.1996; Wiley
• Subjects: Applied sciences; Exact sciences and technology; Forms of application and semi-finished materials; Laminates; Polymer industry, paints, wood; Technology of polymers; Antimony pentoxide; End group; Laminate; Epoxy resin; Flame retardant; Experimental study; Solvent resistance; Thermal properties; Thermal expansion; Chemical modification; Phenylene oxide(dimethyl) copolymer; Formulation; Preparation; Epoxide; Prepolymer; Phenylene oxide(dimethyl) polymer
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/(SICI)1097-4628(19960118)59:3<473::AID-APP12>3.0.CO;2-V

The thermal expansion property at 288°C of poly(2,6‐dimethyl‐1,4‐phenylene ether) (PPO®)/epoxy laminate was found to be affected by the PPO/epoxy copolymer content in the laminate. Capping of redistributed PPO with epoxide‐containing reagents such as Araldite® EPN 1138 and an “upstaged” resin was readily accomplished with tetraethylammonium hydroxide or N, N‐dimethylaminopyridine as the catalyst during the varnish preparation step. The resulting PPO/epoxy laminate maintained the nonlofting property despite the presence of phenolic hardener (curing accelerator) and antimony pentoxide (flame retardant) in the formulation. © 1996 John Wiley & Sons, Inc.