Evidence for termination of intermediate radical species in RAFT-mediated polymerization
Date
2003
Authors
Calitz F.M.
McLeary J.B.
McKenzie J.M.
Tonge M.P.
Klumperman B.
Sanderson R.D.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The reactions of short-chain species during the initial periods of cumyl dithiobenzoate (CDB)-mediated polymerizations of styrene were investigated at 84°C. High initiator and CDB concentrations were chosen such that very short chains were targeted at complete conversion, and high radical concentrations were present. The high radical and RAFT agent concentrations allowed the detailed examination of the nature and concentrations of both radical and nonradical species during the initial stages of the reaction. The probability of side reactions, such as termination of intermediate radicals, was enhanced due to the high concentrations of the potential reactants that were presented.
Description
Keywords
Addition reactions, Diffusion, Electron spin resonance spectroscopy, Initiators (chemical), Monomers, Styrene, Cumyl dithiobenzoate, Fragment chain transfer process, Rate retardation, Free radical polymerization
Citation
Macromolecules
36
26
36
26