Performance of a Gel Permeation Chromatograph and its Usefulness in Examining Mixtures of Organic Materials,

Abstract

As part of a programme of assessing the molecular properties of organic materials of defence interest, the performance of a locally designed gel permeation chromatograph fitted with a refractive index (R.I.) detector and an evaporative analyser (E.A.) detector has been examined. It was found that with the R.I. detector the performance is similar to that of other instruments. The resoponse of the E.A. detector was found to depend on a number of operating conditions in an unforeseen manner which limits the usefulness of this detector. However, molecular weight distributions determined with the E.A. detector showed good agreement with the R.I. results. Using the two detectors simultaneously, a study has been made of a complex mixture of epoxy resins (an aircraft adhesive) and it has been shown that information relevant to the performance of advanced organic materials can be provided by such studies. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA079953

Entities

People

  • Carolyn E. M. Morris
  • Ivan Grabovac

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Chromatographs
  • Complex Mixtures
  • Detectors
  • Epoxy Resins
  • Materials
  • Materials Laboratories
  • Materials Science
  • Molecular Weight
  • Molecules
  • Organic Chemistry
  • Organic Materials
  • Plastics
  • Polymers
  • Refractive Index
  • Resins

Readers

  • Polymer Science and Technology
  • Radar Systems Engineering.
  • Systems Analysis and Design