Switchable, Chiral Aluminium Catalysts for Ring Opening Polymerisations

Abstract

A switchable, solvent-free catalytic system was developed in which Al methyl aminebis(phenolate) catalysts selectively initiate the formation of a polyether from cyclohexene oxide under CO2 atmosphere or the ROCoP of cyclohexene oxide and CO2 through the addition of a PPNCl cocatalyst to form poly(cyclohexene carbonate).