Reversible Addition Fragmentation Chain Transfer (RAFT) Polymerization of Methyl Acrylate:  Detailed Structural Investigation via Coupled Size Exclusion Chromatography−Electrospray Ionization Mass Spectrometry (SEC−ESI-MS)

2004 ◽  
Vol 37 (3) ◽  
pp. 744-751 ◽  
Author(s):  
Andrew Ah Toy ◽  
Philipp Vana ◽  
Thomas P. Davis ◽  
Christopher Barner-Kowollik
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Methyl Acrylate ◽  
Structural Investigation ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Size Exclusion ◽  
Ionization Mass ◽  
Reversible Addition ◽  
Exclusion Chromatography

Molecular Weight and Tacticity of Oligoacrylates by Capillary Electrophoresis - Mass Spectrometry

2010 ◽  
Vol 63 (8) ◽  
pp. 1219 ◽  
Author(s):  
Marianne Gaborieau ◽  
Tim J. Causon ◽  
Yohann Guillaneuf ◽  
Emily F. Hilder ◽  
Patrice Castignolles
Keyword(s):  
Capillary Electrophoresis ◽  
Raft Polymerization ◽  
Degree Of Polymerization ◽  
Size Exclusion ◽  
Separation Mechanism ◽  
Ionization Mass ◽  
Polymeric Particles ◽  
Reversible Addition ◽  
Exclusion Chromatography

Oligo(acrylic acid) efficiently stabilizes polymeric particles, especially particles produced by reversible addition–fragmentation 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.

Sign in / Sign up

Export Citation Format

Share Document