#$%^&*AU2020217455A120200903.pdf#####:1 Interwovn NRPortbl DCC GRS 20553115 l.DOCX-14/08/2020 SYNTHESIS OF POLYCARBONATE SILOXANE DIOLS Abstract The present invention provides silicon-based polycarbonates, processes for their preparation and their use in the synthesis of copolymers, in particular segmented copolymers such as polyurethanes for biomedical applications.