PHYSICAL AND RHEOLOGICAL PROPERTIES OF NITROSO RUBBERS

Abstract

Characterization of the trifluoronitrosomethane/tetrafluoroethylene copolymer was continued. The CF3NO/C2F4 copolymer was found to be adaptable to elution fractionation in a perfluorocyclic ether and a benzotrifluoride solvent/nonsolvent system. A weight-viscosity distribution consisting of 25 fractions was obtained. A sample from which 25% insoluble gel was removed exhibited two dominant molecular weight regions of 2 x 10 to the 5th power and 4 x 10 to the 6th power. The molecular weight of a fraction of the CF3NO/C2F4 copolymer with a reduced viscosity of 1.37 in perfluorocyclic ether was determined by light scattering to be 2.1 x 10 to the 6th power. An amine cured CF3NO/C2F4 sample was swollen by fourteen solvents and chemicals, including water. No crystallinity was observed in the CF3NO/C2F4 gum down to -80C.

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Document Details

Document Type
Technical Report
Publication Date
Apr 12, 1966
Accession Number
AD0634144

Entities

People

  • G. Iii L. Ball
  • I. O. Salyer

Organizations

  • Monsanto

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Chemical Compounds
  • Chemistry
  • Corporations
  • Diffraction
  • Elongation
  • Equations
  • Glass Transition Temperature
  • Light Scattering
  • Low Temperature
  • Molecular Weight
  • Physical Chemistry
  • Physical Properties
  • Polymers
  • Resistance
  • Scattering
  • Tensile Strength
  • Viscosity

Readers

  • Polymer Science and Engineering.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics