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Transition metal‐catalyzed atom transfer radical polymerization of stearyl methacrylate in the presence of carbon tetrabromide and a conventional radical initiator
Author(s) -
Saikia Prakash J.,
Goswami Aradhana,
Baruah Shashi D.
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10972
Subject(s) - polymer chemistry , radical polymerization , polymerization , atom transfer radical polymerization , azobisisobutyronitrile , chemistry , monomer , chain transfer , methacrylate , cobalt mediated radical polymerization , radical , radical initiator , polymer , organic chemistry
Atom transfer radical polymerization of stearyl methacrylate (SMA) was successfully carried out in N,N ‐dimethylformamide using the carbon tetrabromide/Fe(III)/2,2′‐bipyridine initiator system in the presence of 2,2′‐azobisisobutyronitrile (AIBN) as the source of the reducing agent to maintain the equilibrium between growing radicals and dormant species. The molecular weights of the resulting poly(stearyl methacrylate) (PSMA) increased with the conversion and the molecular weight distribution of PSMA was quite narrow. The rates of polymerization exhibit first‐order kinetics with respect to the monomer. A probable reaction mechanism for the polymerization system was postulated to explain the observed results. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 386–394, 2002