Citation: Ying Xia WANG, Feng HE, Ren Xi ZHUO. Synthesis and Characterization of Amphiphilic Block Copolymer Containing PVP and Poly(5-benzyloxytrimethylene carbonate)[J]. Chinese Chemical Letters, ;2006, 17(2): 239-242. shu

Synthesis and Characterization of Amphiphilic Block Copolymer Containing PVP and Poly(5-benzyloxytrimethylene carbonate)

Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan 430072

Received Date: 6 June 2005

Fund Project: The authors are grateful for the financial support of National Key Fundamental Research Program of China (Grant No. G1999064703) and the National Natural Science Foundation of China (Grant No. 20104005).

Amphiphilic copolymer of 5-benzyloxytrimethylene carbonate (BTMC) with poly (vinyl pyrrolidone) (PVP) was successfully synthesized using immobilized porcine pancreas lipase (IPPL) or SnOct₂ as catalyst. Hydroxyl terminated PVP, synthesized with 2-mercaptoethanol as a chain transfer reagent, was employed as a macroinitiator. The resulting copolymers were characterized by GPC, ¹H NMR and IR. Increasing the BTMC/PVP-OH feed ratio ([B]/[P])resulted in the increase of M_n of corresponding copolymers and the decrease of M_w/M_n.Immobilized enzyme has comparable catalytic activity to SnOct₂ for the copolymerization.
- Amphiphilic copolymer,
- end-functionalized PVP,
- 5-benzyloxytrimethylene carbonate,
- immobilized enzyme,
- ring-opening polymerization,
- macroinitiator
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