Synthesis and Property of Well-defined Polymethylene/Polylactide Diblock Copolymer

Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (04): 497-502. Previous Articles

Note

结构可控的聚亚甲基/聚乳酸嵌段共聚物的合成及其性能研究

李启蒸¹^{,2，张国艺²，黄晋²，赵巧玲²，魏柳荷¹，何占航*^{,1，马志*^,2}}

(¹郑州大学化学系郑州 450001)
(²中国科学院上海有机化学研究所上海 200032)

投稿日期:2010-08-15 修回日期:2010-09-20 发布日期:2010-10-25
通讯作者: 马志 E-mail:mazhi728@mail.sioc.ac.cn

Synthesis and Property of Well-defined Polymethylene/Polylactide Diblock Copolymer

Li Qizheng¹^{,2 Zhang Guoyi² Huang Jin² Zhao Qiaoling² Wei Liuhe¹ He Zhanhang*^{,1 Ma Zhi*^,2}}

(¹ Department of Chemistry, Zhengzhou University, Zhengzhou 450001)
(² Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032)

Received:2010-08-15 Revised:2010-09-20 Published:2010-10-25

Abstract

Well-defined polymethylene/poly(D,L-lactide) diblock copolymers (PM-b-PLA) were synthesized via the combination of living polymerization of ylides and ring opening polymerization of D,L-lactide. The ¹H NMR spectra, GPC traces and FT-IR spectra of diblock copolymers indicated the successful extension of PLA segment. The melting behavior of PM-b-PLA diblock copolymer was investigated by differential scanning calorimetry (DSC). The results indicated that the incorporation of PLA segments effectively influence the crystalline process of PM segments. Scanning electron microscopy (SEM) observation showed that PM-b-PLA can act as an efficient compatibilizer for LDPE/PLA blends. PM-b-PLA diblock copolymers can be fabricated to ordered porous films via the breath-figure (BF) method.

Key words: polyolefin, polylactide, living polymerization of ylides, ring-opening polymerization, diblock copolymer

Cite this article

LI Qi-Zheng, ZHANG Guo-Yi, HUANG Jin, ZHAO Qiao-Ling, WEI Liu-He, HE Zhan-Hang, MA Zhi. Synthesis and Property of Well-defined Polymethylene/Polylactide Diblock Copolymer[J]. Acta Chimica Sinica, 2011, 69(04): 497-502.

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结构可控的聚亚甲基/聚乳酸嵌段共聚物的合成及其性能研究

Synthesis and Property of Well-defined Polymethylene/Polylactide Diblock Copolymer

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