Accession Number : ADA321766

Title :   Synthesis of Poly(Alkyl/Arylphosphazenes) and Their Functionalized Derivatives.

Descriptive Note : Final rept. 1 Jun 92-30 Sep 95,

Corporate Author : TEXAS CHRISTIAN UNIV FORT WORTH

Personal Author(s) : Neilson, Robert H. ; Wisian-Neilson, Patty

PDF Url : ADA321766

Report Date : JAN 1997

Pagination or Media Count : 12

Abstract : This program of research addressed several aspects of the chemistry and properties of poly(alkyl/arylphosphazenes). The first of these was the development of improved polymerization methods for consistent preparation of high molecular weight samples of the basic poly(alkyl/arylphosphazenes) on a large scale. Secondly, the chemistry of the precursors was studied to better understand the mechanism of the polymerization, to prepare potential precursors to other main group element containing polymers, and to prepare block copolymers. A third part of this work involved the studies of the reactivity of the poly(alkyl/arylphosphazenes) and the synthesis of new poly(phosphazenes) from the preformed polymers. Finally, a variety of properties of the poly(alkyl/arylphosphazenes) were investigated, including thermal and surface properties, and gas permeability. The details of each of these areas of research are given in the following sections.

Descriptors :   *POLYMERS, *ARYL RADICALS, *ALKYL RADICALS, *PHOSPHAZENE, THERMAL PROPERTIES, METHODOLOGY, PERMEABILITY, PREPARATION, PRECURSORS, POLYMERIZATION, BLOCK COPOLYMERS, MOLECULAR WEIGHT, REACTIVITIES, GASES, CONSISTENCY, CHEMISTRY, SURFACE PROPERTIES, SAMPLING, MATERIAL FORMING.

Subject Categories : Polymer Chemistry
      Organic Chemistry
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE