PHYSICAL AND RHEOLOGICAL PROPERTIES OF NITROSO RUBBERS

Abstract

Four nitroso gum samples were characterized by IR, NMR, elemental analysis, intrinsic viscosity, X-ray diffraction, TGA, DTA and ClashBerg shear modulus. Infrared analyses indicated that the four gums were basically similar. NMR confirmed a previously reported structure. Elemental Analysis, however, indicated a variation in fluorine content from 61 to 67%. Molecular weights by intrinsic viscosity were in the range of 1.0 to 1.3 x 10 to the 6th power. TGA confirmed a previously disclosed weight loss at 75 C with unzipping at 260C. DTA exhibited a mild exotherm at 250 C with an EXPLOSIVE exotherm at 295 C. Glass transitions of -60 C and -45 C were found by means of the Clash-Berg shear modulus apparatus. However, it was felt that the -60 C transition may be due in part to the presence of solvent.

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Document Details

Document Type
Technical Report
Publication Date
Jan 14, 1965
Accession Number
AD0461425

Entities

People

  • G. L. Ball Iii
  • H. S. Wilson
  • I. O. Salyer
  • J. V. Pustinger
  • L. Gilman

Organizations

  • Monsanto

Tags

DTIC Thesaurus Topics

  • Body Weight
  • Contracts
  • Differential Thermal Analysis
  • Diffraction
  • Explosives
  • Frequency
  • Infrared Spectra
  • Infrared Spectroscopy
  • Magnetic Resonance
  • Molecular Weight
  • Nuclear Magnetic Resonance
  • Resonance
  • Shear Modulus
  • Spectra
  • Spectroscopy
  • Thermal Analysis
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Combustion science or combustion engineering.
  • Organic Chemistry
  • Polymer Science and Technology