Preparation of hyperbranched polyacrylates by atom transfer radical polymerization, 4: The use of zero-valent copper

Krzysztof Matyjaszewski, Jeffrey Pyun, Scott G. Gaynor

Research output: Contribution to journalArticle

110 Scopus citations

Abstract

The addition of zero-valent copper to the self-condensing vinyl polymerization (SCVP) of novel AB* (meth)acrylic monomers using atom transfer radical polymerization (ATRP) catalyst systems has allowed for their successful polymerization. Polymerization under homogeneous and heterogeneous catalyst conditions without additional Cu(0) were unsuccessful. The catalyst system that was designed comprised of Cu(I) bromide, 4,4‰-bis(5-nonyl)-2,2‰-bipyridine, and Cu(0) metal (powder or turning). From 1H NMR spectroscopy, the degree of branching was estimated for the acrylic polymers, DB = 0.48. The degree of branching could not be determined for methacrylates by this method due to overlapping signals in the 1H NMR spectra.

Original languageEnglish (US)
Pages (from-to)665-670
Number of pages6
JournalMacromolecular Rapid Communications
Volume19
Issue number12
DOIs
StatePublished - Dec 1998
Externally publishedYes

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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