Miscibility and Phase Behavior of Poly (Enaminonitrile)/Peo Blends

Abstract

Recently, we have been synthesizing and studying the properties of poly(enaminonitriles), a novel class of polymers which exhibit the thermal stability of aramides but are readily soluble in simple, volatile solvents such as THF and diglyme, as well as in polar, aprotic solvents. Spectroscopic evidence supports specific hydrogen bonded interactions between the NH-groups of the enaminonitrile unit and the oxygen atoms in the ether. Ether solutions exhibit lower critical solution temperature behavior. For the glymes, the critical temperature for phase separation increases as the number -CH2-CH2-0- units increases from one to eleven. A similar tendency is observed for blends with poly(ethyleneoxide) up to PEO contents of 50 wt-%. DSC, FT-IR and light scattering data will be presented and discussed.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1990
Accession Number
ADA222255

Entities

People

  • J. A. Moore
  • Ji H. Kim

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Classification
  • Critical Temperature
  • Diagrams
  • Films
  • Glass Transition Temperature
  • Hydrogen
  • Light Scattering
  • Miscibility
  • Phase Diagrams
  • Phase Separation
  • Phase Transformations
  • Polymers
  • Security
  • Solvents
  • Thermal Stability
  • Transition Temperature

Readers

  • Polymer Science and Technology