Citation: Sheng Qiang Nie, Fen Ran, Chao He, Peng Fei Zhao, Xiao Hong Wei, Jie Li, Chang Sheng Zhao. Synthesis of amphiphilic tri-block copolymer poly(vinylpyrrolidone)-b-poly(methyl methacrylate)-b-poly(vinylpyrrolidone) for the modification of polyethersulfone membrane[J]. Chinese Chemical Letters, ;2011, 22(3): 370-373. doi: 10.1016/j.cclet.2010.10.017 shu

Synthesis of amphiphilic tri-block copolymer poly(vinylpyrrolidone)-b-poly(methyl methacrylate)-b-poly(vinylpyrrolidone) for the modification of polyethersulfone membrane

a College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China;
b State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China

Received Date: 29 June 2010

Fund Project: The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Nos. 50972070 and 51073105), and Sichuan Youth Science and Technology Foundation (No. 08ZQ026-038). We should also thank our laboratory members for their generous help.

Well-defined amphiphilic tri-block copolymer PVP-b-PMMA-b-PVP was prepared for the first time via successive reversible addition fragmentation chain transfer (RAFT) polymerization using carboxyl-terminated trithiocarbonate as the RAFT agent. The structure of the copolymer was characterized using FTTR, GPC and ¹H NMR. The block copolymer could be directly blended with polyethersulfone (PES) as a macromolecule additive using N-methyl-2-pyrrolidone (NMP) as the solvent to prepare membranes. The water contact angles for the modified membranes decreased obviously, and therefore, the protein adsorption amount on the membrane surface decreased.
- Polyethersulfone membrane,
- Protein adsorption,
- Surface modification,
- PVP-b-PMMA-b-PVP
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