发明名称 |
Branched biodegradable polymers, a macromonomer, processes for the preparation of same, and their use |
摘要 |
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.
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申请公布号 |
US8492505(B2) |
申请公布日期 |
2013.07.23 |
申请号 |
US20060916261 |
申请日期 |
2006.05.31 |
申请人 |
FEIJEN JAN;ZHONG ZHIYUAN;DIJKSTRA PIETER JELLE;UNIVERSITY OF TWENTE |
发明人 |
FEIJEN JAN;ZHONG ZHIYUAN;DIJKSTRA PIETER JELLE |
分类号 |
C08G63/85 |
主分类号 |
C08G63/85 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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