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  5. Metal-free synthesis of amphiphilic functional polycarbonates

Metal-free synthesis of amphiphilic functional polycarbonates

来源 :中国化学快报（英文版） | 被引量 : 0次 | 上传用户：xiaolianzhang
【摘 要】
：
Amphiphilic block copolymers of poly(5-benzyloxy trimethylene carbonate) (PBTMC) and poly(ethylene glycol) (PEG) were synthesized through enzymatic polymerizati
【作 者】
：
Ying Xia Wang Jun Feng Feng He 
【机 构】
：
Key Laboratory of Eco-textiles Jiangnan University,Department of Chemistry
【出 处】
：
中国化学快报（英文版）
【发表日期】
：
2004年期
【关键词】
：
Amphiphilic block copolymer Enzymatic polymerization Polycarbonate 
【基金项目】
：
Open Project Program of Key Laboratory of Eco-Textiles (Jiangnan University),Ministry of Education, China;国家自然科学基金
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Amphiphilic block copolymers of poly(5-benzyloxy trimethylene carbonate) (PBTMC) and poly(ethylene glycol) (PEG) were synthesized through enzymatic polymerization using immobilized porcine pancreas lipase (IPPL). The obtained copolymers with different compositions were characterized by GPC and 1H NMR. The copolymer composition was in agreement with the feed ratio.The molecular weight of the copolymers showed an increasing trend with the decrease of PEG contents. Micelles of the copolymers were formed by dialysis procedure, and characterized by transmission electron microscopy (TEM).
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