'Living' Cationic Polymerization of Phosphoranimines as an Ambient Temperature Route to Polyphosphazenes with Controlled Molecular Weights.

Abstract

A new method for the synthesis of poly(dichlorophosphazene) at ambient temperatures is described. The molecular weight of poly(dichlorophosphazene) was controlled by altering the ratio of monomer to initiator. The polymer chains were found to be active after chain propagation since further addition of monomer resulted in the formation of higher molecular weight polymer. Integration of (1)H and (31)P NMR spectra of these reactions revealed that the polymerization follows first order reaction kinetics with respect to monomer concentration.

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Document Details

Document Type
Technical Report
Publication Date
Jun 14, 1996
Accession Number
ADA310348

Entities

People

  • C. A. Crane
  • C. T. Morrissey
  • Harry R. Allcock
  • J. M. Nelson
  • S. D. Reeves

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkanes
  • Chemical Kinetics
  • Chemical Synthesis
  • Chemistry
  • Chlorides
  • Explosives Initiators
  • Kinetics
  • Macromolecules
  • Materials
  • Materials Science
  • Military Research
  • Molecular Weight
  • Organic Chemistry
  • Polymer Chemistry
  • Polymers
  • Spectra
  • Spectroscopy

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology