Kinetic study of RuIII-catalyzed polymerization of methylmethacrylate initiated with n-butylamine in the presence of carbon tetrachloride by a charge-transfer mechanism

✍ Scribed by Rajesh Tiwari; Gerard T. Caneba

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 322 KB
• Volume: 43
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.20534

✦ Synopsis

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.