Cu(0) mediated polymerization in toluene using online rapid GPC monitoring

Martin E. Levere, Ian Willoughby, Stephen O'Donohue, Peter M. Wright, Anthony J. Grice, Christopher Fidge, C. Remzi Becer, David M. Haddleton

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Polymerization of methyl acrylate (MA) catalyzed by Cu(0) is carried out in toluene using a range of alcohols and phenol as additives to facilitate the reaction. The polar/coordinating additives promote disproportionation of Cu(I) to Cu(0), the proposed active species in single electron transfer living radical polymerization (SET-LRP), and Cu(II) whilst toluene maintains solubility of the reagents and products. In this work, the use of alcohols as additives is optimized. Polymerizations are monitored in real time using rapid chromatography to obtain conversion and molecular weight distribution data without the necessity of manual sampling. Rapid gel permeation chromatography with low angle laser light scattering detection is shown to be a viable method of obtaining molecular weight distribution data in real time compared with conventional analytical techniques. Moreover, the changes in CuBr 2 concentration during SET-LRP reactions are monitored online using a photodiode array detector. Finally, the kinetics of SET-LRP of MA using an ultra pure highly porous Cu(0) is performed and a detailed discussion on the role of Cu(II) is provided.

Original languageEnglish
Pages (from-to)1753-1763
Number of pages11
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume49
Issue number8
Early online date25 Feb 2011
DOIs
Publication statusPublished - 15 Apr 2011

Keywords

  • additives
  • kinetics
  • metal mediated living radical polymerization
  • online characterization
  • single electron transfer-living radical polymerization

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Cu(0) mediated polymerization in toluene using online rapid GPC monitoring'. Together they form a unique fingerprint.

Cite this