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Kinetic study of Ru III ‐catalyzed polymerization of methylmethacrylate initiated with n ‐butylamine in the presence of carbon tetrachloride by a charge‐transfer mechanism
Author(s) -
Tiwari Rajesh,
Caneba Gerard T.
Publication year - 2011
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.20534
Subject(s) - chemistry , polymerization , carbon tetrachloride , polymer chemistry , photochemistry , catalysis , ruthenium , organic chemistry , polymer
Ruthenium trichloride (RuCl 3 or Ru III ) catalyzed polymerization of methylmethacrylate (MMA) initiated with n ‐butylamine (BA) in the presence of carbon tetrachloride (CCl 4 ) by a charge‐transfer mechanism has been investigated in a dimethylsulfoxide (DMSO) medium by employing a dilatometric technique at 60°C. The rate of polymerization ( R p ) has been obtained under the conditions [CCl 4 ]/[BA] ⩽ 1 and [CCl 4 ]/[BA] ⩾ 1. The kinetic data indicate the possible participation of the charge‐transfer complex formed between the amine–Ru III complex and CCl 4 in the polymerization of MMA. In the absence of either CCl 4 or BA, no polymerization of MMA is observed under the present experimental conditions. The rate of polymerization is inhibited by hydroquinone, suggesting a free‐radical initiation. © 2010 Wiley Periodicals, Inc. Int J Chem Kinet 43: 70–77, 2011