Synthesis and polymerization of aliphatic bisnadimides

Abstract

A series of linear aliphatic and cycloaliphatic bisnadimides of structure has been prepared and polymerized thermally to give highly crosslinked moisture-resistant laminating resins. Cyclopentadiene is evolved by retrograde Diels–Alder reaction during processing, but most is captured by copolymerization. Moisture resistance increases as chain length increases for the homologous series of straight-chain polybisnadimides.