BRANCHED BIODEGRADABLE POLYMERS, A MACROMONOMER, PROCESSES FOR THE PREPARATION OF SAME, AND THEIR USE

Zhiyuan Zhong (Inventor), Jan Feijen (Inventor), Pieter J. Dijkstra (Inventor)

    Research output: Patent

    Abstract

    The present invention relates to a process for the preparation of branched biodegradable polymers comprising of the steps of: (a) preparing a macromonomer by ring-opening polymerization of at least one cyclic ester, cyclic carbonate, and/or cyclic carboxyanhydride in the presence of a branching agent and optionally a catalyst; and (b) subsequent polycondensation of the macromonomer, to a process for the preparation of a macromonomer by ring-opening polymerization of at least one cyclic ester, carbonate and/or N-carboxyanhydride in the presence of a defined branching agent and optionally a catalyst, according to step (a), and to the prepared macromonomer and branched biodegradable polymer and their uses.

    Original languageEnglish
    Patent numberUS2009118459
    IPCC08G 64/ 04 A I
    Priority date31/05/06
    Publication statusPublished - 7 May 2009

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