Design of water-soluble block copolymers containing poly(4-vinylpyridine) by atom transfer radical polymerization

The preparation of block copolymers consisting of poly(4-vinylpyridine) (P4VP) by atom transfer radical polymerization (ATRP) was investigated. The goal was to synthesize water-soluble block copolymers with poly(ethylene oxide) (PEO) as first block, a water-soluble polymer at any pH. First, a PEO ma...

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Bibliographic Details
Published in:European polymer journal 2006, Vol.42 (1), p.43-50
Main Authors: Vidts, Kris R.M., Du Prez, Filip E.
Format: Article
Language:English
Subjects:
4-Vinylpyridine
Applied sciences
ATRP
Block copolymers
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:The preparation of block copolymers consisting of poly(4-vinylpyridine) (P4VP) by atom transfer radical polymerization (ATRP) was investigated. The goal was to synthesize water-soluble block copolymers with poly(ethylene oxide) (PEO) as first block, a water-soluble polymer at any pH. First, a PEO macroinitiator was prepared for the ATRP block copolymerization of 4-vinylpyridine. In the second stage, the kinetic behaviour of this block copolymerization was investigated for two different types of PEO-macroinitiators and catalyst systems, based on CuCl or CuCl 2/Cu(0), with tris[2-(dimethylamino)ethyl]amine (Me 6-TREN) as the ligand. Various combinations of initiator and catalyst led to a controlled block copolymerization with optimized results obtained for chlorinated poly(ethylene glycol) monomethyl ether as macroinitiator, together with CuCl 2/Cu(0)/Me 6-TREN as catalyst system. With the latter system, narrow polydispersities (1.25) could be reached for PEO–P4VP block copolymers.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2005.10.013