Stereocontrolled Polymerization within a Cyclophosphazene Clathrate Tunnel System

Harry R. Allcock, Eric N. Silverberg, Gary K. Dudley

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


The inclusion and 60Co γ-ray-initiated polymerization of vinylic and acrylic monomers within the clathrate tunnels formed by tris(o-phenylenedioxy)cyclotriphosphazene is described. Methacrylonitrile, methacrylic acid, ethyl acrylate, butyl acrylate, hexyl acrylate, allyl methacrylate, vinyl acetate, and vinylanisole monomers were included by direct contact imbibition. Varying degrees of stereoregularity were obtained from the inclusion polymerization of the monomers listed above. For example, poly(methacrylonitrile) synthesized within the host adduct showed an enhanced isotactic microstructure. Another aspect of clathratemediated polymerization is that no radiation cross-linked material was obtained for polymers derived from the acrylates and methacrylonitrile, in contrast to the corresponding radiation-induced bulk polymerizations. The copolymer poly(vinyl acetate-co-methyl acrylate) was also prepared using the inclusion polymerization method.

Original languageEnglish (US)
Pages (from-to)1033-1038
Number of pages6
Issue number4
StatePublished - Jul 1 1994

All Science Journal Classification (ASJC) codes

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


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