The Cross-Linking of Thermally Stable Aromatic Polymers by Aryl Cyanate Cyclotrimerization.

摘要

Thermally stable aromatic polymers have been cross-linked by employing the cyclotrimerization of aryl cyanates as the curing reaction. Biscyanato prepolymers of a phenylated polyphenylene and a polyphenylquinoline were synthesized by the reaction of cyanogen bromide with the corresponding hydroxyl end-capped oligomers. Thermal treatment of these prepolymers afforded a three-dimensional network structure with cyanurate ring structures at the cross-linking site.