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Molecular weight and tacticity of oligoacrylates by capillary electrophoresis-mass spectroscopy


Gaborieau, M and Causon, TJ and Guillaneuf, Y and Hilder, EF and Castignolles, P, Molecular weight and tacticity of oligoacrylates by capillary electrophoresis-mass spectroscopy, Australian Journal of Chemistry, 63, (8) pp. 1219-1226. ISSN 0004-9425 (2010) [Refereed Article]

DOI: doi:10.1071/CH10088


Oligo(acrylic acid) efficiently stabilizes polymeric particles, especially particles produced by reversible additionfragmentation chain transfer (RAFT) (as hydrophilic block of an amphiphilic copolymer). Capillary electrophoresis (CE) has a far higher resolution power to separate these oligomers than the commonly used size exclusion chromatography. Coupling CE to electrospray ionization mass spectrometric detection unravels the separation mechanism. CE separates these oligomers, not only according to their degree of polymerization, but also according to their tacticity, in agreement with NMR analysis. Such analysis will provide insight into the role of these oligomers as stabilizers in emulsion polymerization, and into the mechanism of the RAFT polymerization with respect to degree of polymerization and tacticity. © CSIRO 2010.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Causon, TJ (Mr Timothy Causon)
UTAS Author:Hilder, EF (Professor Emily Hilder)
ID Code:67373
Year Published:2010
Funding Support:Australian Research Council (LE0989491)
Web of Science® Times Cited:16
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2011-03-03
Last Modified:2011-05-03

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