RAFT-polymerization of styrene up to high pressure: Rate enhancement and improved control

Toshihiko Arita, Michael Buback, Olaf Janssen, Philipp Vana

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)

Abstract

Application of high pressure, up to 2 500 bar, in cumyl dithiobenzoate-mediated styrene reversible addition fragmentation chain transfer (RAFT) polymerizations was found to be extremely advantageous with respect to both rate and control of polymerization. The overall rate of polymerization could be increased by a factor of approximately 3 with, e.g., at 23% conversion, concomitantly reducing the polydispersity indices from 1.35 to 1.10. No significant effect of increased pressure on the rate retardation effect was found.

Original languageEnglish
Pages (from-to)1376-1381
Number of pages6
JournalMacromolecular Rapid Communications
Volume25
Issue number15
DOIs
Publication statusPublished - 2004 Aug 2
Externally publishedYes

Keywords

  • High pressure
  • Kinetics (polym.)
  • Living/controlled free-radical polymerization
  • Molecular weight distribution/molar mass distribution
  • Reversible addition fragmentation chain transfer (RAFT)

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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