Stereocontrolled Polymerization of Diene Monomers within a Tris(o-phenylenedioxy) Cyclotriphosphazene Tunnel Calthrate

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

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Abstract

The inclusion and polymerization of the diene monomers 2,3-dimethylbutadiene, isoprene, trans-piperylene, trans-2-methyl-1,3-pentadiene, 4-methyl-1,3-pentadiene, chloroprene, 1,3-cyclohexadiene, 2,3-dimethylbutadiene/isoprene, isoprene/trans-piperylene, and isoprene/butadiene within the tunnels of clathrates formed by tris(o-phenylenedioxy)cyclotriphosphazene have been achieved. The polymerizations were accomplished by 60Co γ-irradiation. All the polymers obtained by this technique resulted from 1,4- addition. Specifically, 1,4-trans-poly(dimethylbutadiene), 1,4-trans-poly(isoprene), isotactic 1,4-trans-poly-(trans-piperylene), isotactic 1,4-trans-poly(trans-2-methyl-1,3-pentadiene), 1,4-trans-poly(4-methyl-1,3- pentadiene), 1,4-trans-poly(chloroprene), atactic 1,4-poly(cyclohexadiene), 1,4-trans-poly(isoprene/dimethylbutadiene), 1,4-trans-poly(isoprene/trans-piperylene), and 1,4-trans-poly(isoprene/butadiene) were formed. The stereoregularity is explained in terms of monomer packing arrangements in the tunnels.

Original languageEnglish (US)
Pages (from-to)1039-1044
Number of pages6
JournalMacromolecules
Volume27
Issue number4
DOIs
Publication statusPublished - Jul 1 1994

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All Science Journal Classification (ASJC) codes

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

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