SYNTHESIS OF POLYETHER-MODIFIED POLYCARBONATE ELASTOMERS.

Abstract

Block copolymers based on polyether polyols and compounds related to the bisphenol structure were synthesized by copolycondensation with phosgene. Elastomers were obtained from the copolycondensation of hydroxy terminated polyethers with phenolphthalein, diphenolic acid or derivatives of diphenolic acid. These elastomers were crosslinked with sulfur and peroxide curing systems, and exhibited tensile strengths up to 2250 p.s.i., 13 percent volume swell after immersion in ASTM No. 3 Oil for 70 hours at 212F, and flexibility at temperatures below-67F. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1969
Accession Number
AD0701875

Entities

People

  • Richard A. Faoro

Tags

DTIC Thesaurus Topics

  • Acids
  • Block Copolymers
  • Chemical Compounds
  • Copolymers
  • Elastomers
  • Indicator Dyes
  • Macromolecules
  • Molecules
  • Peroxides
  • Phosgene
  • Polyethers
  • Polymers
  • Resilience
  • Tensile Strength

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Engineering.

Technology Areas

  • Microelectronics