Degradable Rosin-Ester鈥揅aprolactone Graft Copolymers

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• 作者：Kejian Yao ; Jifu Wang ; Wujie Zhang ; James S. Lee ; Chunpeng Wang ; Fuxiang Chu ; Xiaoming He ; Chuanbing Tang
• 刊名：Biomacromolecules
• 出版年：2011
• 出版时间：June 13, 2011
• 年：2011
• 卷：12
• 期：6
• 页码：2171-2177
• 全文大小：995K
• 年卷期：v.12,no.6(June 13, 2011)
• ISSN：1526-4602

文摘

We have carried out the synthesis of side-chain rosin-ester-structured poly(蔚-caprolactone) (PCL) through a combination of ring-opening polymerization and click chemistry. Rosin structures are shown to be effectively incorporated into each repeat unit of caprolactone. This simple and versatile methodology does not require sophisticated purification of raw renewable biomass from nature. The rosin properties have been successfully imparted to the PCL polymers. The bulky hydrophenanthrene group of rosin increases the glass-transition temperature of PCL by >100 掳C, whereas the hydrocarbon nature of rosin structures provides PCL excellent hydrophobicity with contact angle very similar to polystyrene and very low water uptake. The rosin-containing PCL graft copolymers exhibit full degradability and good biocompatibility. This study illustrates a general strategy to prepare a new class of renewable hydrocarbon-rich degradable biopolymers.