Oxidation Studies of Unfilled Styrene-Butadiene Rubber Used in Tank Track Pads by FT-IR (Fourier Transform Infrared Spectroscopy) DSC (Differential Scanning Calorimetry)

Abstract

The thermo-oxidation of unfilled styrene-butadiene rubber (SBR) was examined by Fourier transform infrared spectroscopy and differential scanning examined by Fourier transform infrared spectroscopy and differential scanning calorimetry (DSC). The process was found to follow an auto-oxidative reaction sequence, where formation of alkyl and peroxy radicals is the initial step. It was also determined that only the butadiene portion of the copolymer was oxidized, no oxidation of the styrene portion could be detected. The DSC results yielded enthalpies in the range of 90 to 180 J/g with an activation energy of 35.0 kcal/mole.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1988
Accession Number
ADA203589

Entities

People

  • James M. Sloan
  • Marianne T. Bachand

Tags

Communities of Interest

  • Advanced Electronics
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Alkenes
  • Biomedical And Dental Materials
  • Butadienes
  • Calorimetry
  • Chemical Reactions
  • Elastomers
  • Engineering
  • Infrared Spectroscopy
  • Materials
  • Materials Science
  • Mechanical Properties
  • Military Research
  • Polymers
  • Spectra
  • Spectroscopy
  • Thermal Analysis

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Organic Chemistry
  • Polymer Science and Technology

Technology Areas

  • Microelectronics