Synthesis of New Low Temperature Petroleum-Resistant Elastomers

Abstract

Three petroleum resistant elastomers of poly(fluroalkoxyphosphazene), which are suitable for low temperature application have been prepared. The copolymer has a glass transition temperature of -77 C and an initial decomposition point of 300 C in air. The copolymer is very inert chemically and is soluble only in selected fluorocarbon solvents. The material does not burn in air even in a direct flame. Samples were cured to give tensile strengths of 1100 psi and elongations of 280%. Several process studies are described. The effect of cyclics on the course of derivatization was studied. The pH DURING HYDROLYSIS APPEARS TO AFFECT THE MOLECULAR WEIGHT OF THE PRODUCT. The removal of salts from the derivatized copolymer by several different methods was investigated.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1972
Accession Number
AD0745900

Entities

People

  • Kennard A. Reynard
  • Richard W. Sicka
  • Selwyn H. Rose

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Chlorine
  • Contracts
  • Elastomers
  • Hydrolysis
  • Low Temperature
  • Magnetic Resonance
  • Materials
  • Materials Science
  • Mechanics
  • Molecular Weight
  • Nuclear Magnetic Resonance
  • Organic Materials
  • Physical Properties
  • Polymers
  • Tensile Strength

Fields of Study

  • Chemistry

Readers

  • Analytical Chemistry
  • Polymer Science and Engineering.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics