Mechanochemical Reactions of Elastomers with Metals.

Abstract

Metal powders have been incorporated into various elastomers and the mixtures subjected to intense shearing in either an air or a nitrogen atmosphere. The molecular weight after shearing was still relatively high, however, greater than 100 kg/mole. The elastomer was then dissolved and centrifuged to remove the metal particles, and the solution was then analyzed to remove the metal particles, and the solution was then analyzed for reaction products. A strongly-UV absorbing species was formed by shearing a styrene-butadiene copolymer (SBR) with iron powder. The concentration increased with both the concentration of iron powder in the mixture and with the extent of shearing, and it was greater for shearing in a nitrogen atmosphere. These results are attributed to direct reaction of macromolecular radicals, formed by shearing, with the iron powder to yield an iron-polymer compound.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1984
Accession Number
ADA145657

Entities

People

  • Alan Neville Gent
  • W. R. Rodgers

Organizations

  • University of Akron

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Chemical Synthesis
  • Chemistry
  • Copolymers
  • Dermatologic Agents
  • Elastomers
  • Engineering
  • Materials
  • Mechanical Engineering
  • Military Research
  • Mixing
  • Molecular Weight
  • Organic Chemistry
  • Polymer Chemistry
  • Polymers
  • Powder Metals
  • Visible Spectra

Readers

  • Analytical Chemistry
  • Mechanical Engineering/Mechanics of Materials.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics