Characterization of oligo(vinyl phosphonate)s by high-resolution electrospray ionization mass spectrometry: Implications for the mechanism of polymerization

Bingöl, B., Hart-Smith, G., Barner-Kowollik, C., & Wegner, G. (2008) Characterization of oligo(vinyl phosphonate)s by high-resolution electrospray ionization mass spectrometry: Implications for the mechanism of polymerization. Macromolecules, 41(5).

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Abstract

Dimethyl vinyl phosphonate, diethyl vinyl phosphonate, and diisopropyl vinyl phosphonate were polymerized at 60°C via free radical polymerization to give oligomers. High-resolution electrospray ionization - mass spectrometry was used to analyze the resulting oligo(vinyl phosphonate)s in order to elucidate their polymerization mechanism. The resulting mass spectra showed no evidence of polymer chains capped with initiator derived fragments as end groups. Instead, the mass spectra indicated that transfer reactions generate activated monomer species (i.e., a monomelic radical), which then act as initiators in the polymerizations. Additionally, these studies indicate that termination takes place by chain transfer to monomer. © 2008 American Chemical Society.

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ID Code: 99171
Item Type: Journal Article
Refereed: Yes
Additional Information: Cited By :34
Export Date: 5 September 2016
CODEN: MAMOB
Correspondence Address: Barner-Kowollik, C.; Center for Advanced Macromolecular Design, School of Chemical Sciences and Engineering, University of New South Wales, NSW 2052, Australia; email: c.barner-kowollik@unsw.edu.au
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Keywords: Characterization, Electrospray ionization, Free radical polymerization, Mass spectrometry, Monomers, Oligomers, End groups, Polymer chains, Termination, Transfer reactions, Phosphates
DOI: 10.1021/ma702225k
ISSN: 00249297
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 10 Oct 2016 01:53

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