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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Controlled, radical reversible addition-fragmentation chain-transfer polymerization in high-surfactant-concentration ionic miniemulsions
Journal of Polymer Science, Part A: Polymer Chemistry, Volume 42, No. 4, Year 2004
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Description
Living free-radical polymerization of methacrylate and styrenic monomers with ionic surfactants was carried out with reversible addition-fragmentation chain transfer in miniemulsion with different surfactant types and concentrations. The previously reported problem of phase separation was found to be insignificant at higher surfactant concentrations, and control of the molar mass and polydispersity index was superior to that of published miniemulsion systems. Cationic and anionic surfactants were used to examine the validity of the argument that ionic surfactants interfere with transfer agents. Ionic surfactants were suitable for miniemulsion polymerization under certain conditions. The colloidal stability of the miniemulsions was consistent with the predictions of a specific model. The living character of the polymer that comprised the latex material was shown by its transformation into block copolymers. © 2004 Wiley Periodicals, Inc.
Authors & Co-Authors
McLeary, James B.
South Africa, Stellenbosch
Stellenbosch University
Tonge, Matthew P.
South Africa, Stellenbosch
Stellenbosch University
De Wet Ross, D.
South Africa, Sasolburg
Sasol Technology Pty Ltd
Sanderson, Ronald D.
South Africa, Stellenbosch
Stellenbosch University
Klumperman, Bert
South Africa, Stellenbosch
Stellenbosch University
Netherlands, Eindhoven
Technische Universiteit Eindhoven
Statistics
Citations: 53
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1002/pola.11042
ISSN:
0887624X