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Living atom transfer radical polymerization of 4‐acetoxystyrene
Author(s) -
Gao Bo,
Chen Xianyi,
Iván Béla,
Kops Jørgen,
Batsberg Walther
Publication year - 1997
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1997.030181213
Subject(s) - atom transfer radical polymerization , living polymerization , radical polymerization , living free radical polymerization , polymer chemistry , chain transfer , reversible addition−fragmentation chain transfer polymerization , polymerization , atom (system on chip) , materials science , polymer science , chemistry , photochemistry , polymer , composite material , computer science , embedded system
Living atom transfer radical polymerization (ATRP) of 4‐acetoxystyrene ( 1 ), a protected 4‐vinylphenol, leading to poly(4‐acetoxystyrene) with well‐defined molecular weight and narrow molecular weight distribution was carried out in bulk with α,α′‐dibromoxylene( 2 )/CuBr/2,2‐bipyridine(bpy) as initiating system. A linear M̄ n versus monomer conversion plot was found in good accordance with the theoretical line, indicating 100% initiating efficiency. The polymerization is first order in respect to monomer up to about 70% monomer conversion. Deviations from linearity at higher conversion in the first order plot are due to physical effects, i.e., to the increase of the viscosity of the reaction medium. The resulting 1‐bromo‐1‐phenylethyl‐telechelic poly(4‐acetoxystyrene) ( 3 ) is a precursor of the hydrophilic poly(4‐vinylphenol) and a potential new macroinitiator.