公开(公告)号：US09365672B2

公开(公告)日：2016-06-14

申请号：US13990541

申请日：2011-11-29

Applicant: Jian Zhou ,  Peng Chen ,  Qun Gu ,  Jun Li ,  Wentao Shi ,  Zongbao Wang ,  Zhiqiang Jiang ,  Xuedong Wu

Inventor： Jian Zhou ,  Peng Chen ,  Qun Gu ,  Jun Li ,  Wentao Shi ,  Zongbao Wang ,  Zhiqiang Jiang ,  Xuedong Wu

IPC: C08G63/08 ,  C08G63/60

CPC classification number: C08G63/08 ,  C08G63/60

Abstract: 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.

Abstract translation: 描述了聚乳酸三嵌段共聚物及其制备方法。 聚乳酸三嵌段共聚物包含芳族聚酯低聚物嵌段和聚乳酸嵌段。 聚乳酸三嵌段共聚物通过使芳族聚酯低聚物与单体丙交酯在所需温度下反应而获得。 聚乳酸嵌段共聚物具有分别对应于芳族聚酯低聚物嵌段和聚乳酸嵌段的峰值熔融温度（Tm）表示的规则结构。 芳族聚酯低聚物嵌段的实例包括聚对苯二甲酸乙二醇酯， 单体丙交酯的实例包括L-丙交酯和D-丙交酯。

公开(公告)号：US20130324680A1

公开(公告)日：2013-12-05

申请号：US13990541

申请日：2011-11-29

Applicant: Jian Zhou ,  Peng Chen ,  Qun Gu ,  Jun Li ,  Wentao Shi ,  Zongbao Wang ,  Zhiqiang Jiang ,  Xuedong Wu

Inventor： Jian Zhou ,  Peng Chen ,  Qun Gu ,  Jun Li ,  Wentao Shi ,  Zongbao Wang ,  Zhiqiang Jiang ,  Xuedong Wu

IPC: C08G63/08

CPC classification number: C08G63/08 ,  C08G63/60

Abstract: Disclosed are a polylactic acid block copolymer and a preparation method thereof. The polylactic acid block copolymer comprises block A and block B, and is presented as B-b-A-b-B triblock structure, wherein the block A is a cyclic aromatic polyester oligomer block, and the block B is a polylactic acid block. The polylactic acid block copolymer is obtained by ring-opening copolymerization of a cyclic aromatic polyester oligomer and a lactide. Disclosed are another polylactic acid block copolymer and a preparation method thereof. The polylactic acid block copolymer comprises block A and block B, and is presented as B-b-A-b-B triblock structure, wherein the block A is an aromatic polyester block with two hydroxyl end groups, and the block B is a polylactic acid block. The polylactic acid block copolymer is obtained by ring-opening copolymerization of an aromatic polyester with two hydroxyl end groups and a lactide.

Abstract translation: 公开了一种聚乳酸嵌段共聚物及其制备方法。 聚乳酸嵌段共聚物包括嵌段A和嵌段B，并且以B-b-A-b-B三嵌段结构的形式存在，其中嵌段A是环状芳族聚酯低聚物嵌段，嵌段B是聚乳酸嵌段。 聚乳酸嵌段共聚物通过环状芳族聚酯低聚物和丙交酯的开环共聚得到。 公开了另一种聚乳酸嵌段共聚物及其制备方法。 聚乳酸嵌段共聚物包含嵌段A和嵌段B，并且以B-b-A-b-B三嵌段结构的形式存在，其中嵌段A是具有两个羟基端基的芳族聚酯嵌段，嵌段B是聚乳酸嵌段。 聚乳酸嵌段共聚物通过芳族聚酯与两个羟基端基和丙交酯的开环共聚获得。