发明授权
- 专利标题： Polylactic acid block copolymers and preparation methods thereof
- 专利标题（中）： 聚乳酸嵌段共聚物及其制备方法
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申请号： US13990541申请日： 2011-11-29
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公开(公告)号： US09365672B2公开(公告)日： 2016-06-14
- 发明人: Jian Zhou , Peng Chen , Qun Gu , Jun Li , Wentao Shi , Zongbao Wang , Zhiqiang Jiang , Xuedong Wu
- 申请人： Jian Zhou , Peng Chen , Qun Gu , Jun Li , Wentao Shi , Zongbao Wang , Zhiqiang Jiang , Xuedong Wu
- 申请人地址： CN Ningbo, Zhejiang
- 专利权人： Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences
- 当前专利权人： Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences
- 当前专利权人地址： CN Ningbo, Zhejiang
- 代理机构： Hamre, Schumann, Mueller & Larson, P.C.
- 优先权： CN201010568888 20101130; CN201110122513 20110512
- 国际申请： PCT/CN2011/083125 WO 20111129
- 国际公布： WO2012/072023 WO 20120607
- 主分类号： C08G63/08
- IPC分类号： C08G63/08 ; C08G63/60
摘要：
A polylactic acid triblock copolymer and a preparation method thereof are described. The polylactic acid triblock copolymer comprises an aromatic polyester oligomer block and a polylactic acid block. The polylactic acid triblock copolymer is obtained by reacting an aromatic polyester oligomer with a monomer lactide at a desired temperature. The polylactic acid block copolymer has a regular structure indicated by peak melting temperatures (Tm) corresponding to the aromatic polyester oligomer block and the polylactic acid block, respectively. Examples of the aromatic polyester oligomer block include polyethylene terephthalate, polybutylene terephthalate, and polyethylene 1,4-naphthalate. Examples of the monomer lactide include L-lactide and D-lactide.