CATIONIC MECHANISM FOR THE RING-OPENING POLYMERIZATION OF PHOSPHAZENES.

Harry R. Allcock, David J. Brennan, Mark S. Connolly, James L. Desorcie

Research output: Contribution to journalConference articlepeer-review

Abstract

The polymerization of cyclophosphazenes to linear high polymers appears to proceed through mechanism that involves ionization of halogen atoms from phosphorus, followed by cationic attack by a phosphazenium ion on other trimeric or tetrameric molecules. These reactions involve ring-ring and ring-chain equilibria that are sensitive to the nature of the side groups. In addition, the presence of cyclosiloxanes in the polymerization system generates a series of phosphazenesiloxane interactions that reinforce the evidence for a cationic polymerization mechanism for phosphazenes.

Original languageEnglish (US)
Number of pages1
JournalAmerican Chemical Society, Polymer Preprints, Division of Polymer Chemistry
Volume26
Issue number1
StatePublished - Apr 1 1985

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics

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