Stereocontrolled Polymerization of Acrylic Monomers within a Tris(o-phenylenedioxy)cyclotriphosphazene Tunnel Clathrate

Harry R. Allcock, Michael L. Levin

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

The 60Co γ-ray-initiated polymerization of acrylic monomers (acrylic acid, acrylic anhydride, acrylonitrile, methyl acrylate, methyl methacrylate, methyl vinyl ketone) within the tunnel-clathrate system formed by tris(o-phenylenedioxy)cyclotriphosphazene (I) provides a general route to the synthesis of enhanced stereoregular polymers. A feature of the clathrate-mediated polymerization is that no radiation cross-linking of multifunctional monomers occurs, in contrast to some of the bulk polymerizations. For example, the clathrate polymerization of acrylic anhydride yielded a new linear polymer, whereas the analogous bulk polymerization gave a cross-linked matrix. The molecular weights of the clathrate-synthesized polymers were similar to those of polymers prepared in the bulk phase. Copolymers were also prepared within host I, and these were found to have a random sequence distribution, in contrast to copolymers prepared in the bulk phase.

Original languageEnglish (US)
Pages (from-to)1324-1330
Number of pages7
JournalMacromolecules
Volume18
Issue number6
DOIs
StatePublished - Nov 1985

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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