Accession Number:

ADA310348

Title:

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

Descriptive Note:

Technical rept.,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF CHEMISTRY

Report Date:

1996-06-14

Pagination or Media Count:

42.0

Abstract:

A new method for the synthesis of polydichlorophosphazene at ambient temperatures is described. The molecular weight of polydichlorophosphazene 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 1H and 31P NMR spectra of these reactions revealed that the polymerization follows first order reaction kinetics with respect to monomer concentration.

Subject Categories:

  • Polymer Chemistry
  • Inorganic Chemistry
  • Organic Chemistry
  • Atomic and Molecular Physics and Spectroscopy
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE