RELATION OF GLASS TRANSITION TEMPERATURE TO MOLECULAR STRUCTURE OF ADDITION COPOLYMERS

Abstract

An equation is proposed relating the glass transition temperature (TG) of copolymers to the molecular structure in terms of the mole fractions of the various diad sequences of monomer units combined in the copolymer chains. The equation, which can account for the occurrence of a maximum or a minimum in plots of TG versus copolymer composition, is applied to eleven addition copolymer systems and found to give good agreement with the experimental data. Application of the equation to obtain homopolymer TGs by extrapolation is demonstrated.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0662536

Entities

People

  • J. M. Barton

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Butadienes
  • Chemical Synthesis
  • Chemistry
  • Copolymerization
  • Copolymers
  • Equations
  • Experimental Data
  • Glass Transition Temperature
  • Molecular Structure
  • Molecular Weight
  • Organic Chemistry
  • Physical Properties
  • Polymer Chemistry
  • Polymers
  • Transition Temperature

Fields of Study

  • Chemistry

Readers

  • Materials Science and Engineering.
  • Polymer Science and Engineering.
  • Theoretical Analysis.

Technology Areas

  • Microelectronics