Application of the "Strathclyde Route" to branched vinyl polymers in suspension polymerization: architectural, thermal, and rheological characterization of the derived branched products

Michael Chisholm, Nicholas Hudson, Neil Kirtley, Filipe Vilela, David C. Sherrington

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Copolymerizations of methyl methacrylate (MMA) and ethyl acrylate (EA), both monofunctional monomers, with ethylene glycol diacrylate (EGDA) as the brancher (a difunctional monomer) have been carried out via free-radical solvent-free suspension polymerization using 2,2'-azobis-(isobutyronitrile) (AIBN) as the source of radicals, in the presence of a chain transfer agent (CTA) to avoid cross-linking and produce only branched polymers. Investigation of various CTAs led to the choice of I-dodecanethiol (DDT) mainly due to its low volatility and hydrophobicity. Typically, EGDA/DDT mole ratios of

Original languageEnglish
Pages (from-to)7745-7752
Number of pages8
JournalMacromolecules
Volume42
Issue number20
DOIs
Publication statusPublished - 27 Oct 2009

Keywords

  • TRANSFER RADICAL POLYMERIZATION
  • ETHYLENE-GLYCOL DIMETHACRYLATE
  • AROMATIC ETHERIMIDE COPOLYMERS
  • SOLUBLE HYPERBRANCHED POLYMER
  • TRANSFER RAFT POLYMERIZATION
  • EXPERIMENTAL GEL POINTS
  • POLY(METHYL METHACRYLATE)S
  • METHYL-METHACRYLATE
  • MOLECULAR-WEIGHT
  • GLASS-TRANSITION

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