Synthesis of brominated acenaphthylenes and their flame‐retardant effects on ethylene–propylene–diene terpolymer

Abstract

SynopsisBromoacenaphthylenes and their condensates as flame-retardant reagents were synthesized by bromination of acenaphthylene using ZnCl+2F&OOH or FeCln as catalysts and subsequent dehydrobromination. The chief components were identified as bromoacenaphthylene monomers when ZnClFCF3COOH were used, and as their condensates (mostly trimers) in the case of FeC13.