CROSSLINKABLE POLYCYCLIC POLYCARBONATE OLIGOMERS AND METHODS FOR THEIR PREPARATION AND USE

摘要

CROSSLINKABLE POLYCYCLIC POLYCARBONATEOLIGOMERS AND METHODS FOR THEIRPREPARATION AND USEAbstractPolycyclic polycarbonate (or thiol analog)oligomers are prepared from a mixture of at least onebishaloformate with at least one tetraphenol, or thioanalogs thereof. Such mixture may also contain at leastone dihydroxy or dimercapto compound. The oligomers areformed by the reaction of such mixtures with alkali metalhydroxides and various amines. The polycyclic oligomermixtures may be converted to crosslinked polycarbonatesor their thiol analogs.