Evaluation of the Polymer-Polymer Interaction Parameter from the Equation-of-State Thermodynamic Theory.

Abstract

The strength of interaction between the segments of dissimilar components greatly influence the morphology of microdomains and hence the properties of polymer-polymer blends and block copolymers. In the theories of polymer-polymer interfaces dealing with such multicomponent systems, the interaction between components is usually expressed in terms of a single parameter which is independent of concentration. The validity of such an approximation is examined in this work in the light of the equation-of-state thermodynamic theory of polymer solutions and mixtures developed by Flory and coworkers. Using the molecular parameters evaluated by these workers, we have computed the free energy of mixing for the pairs, polyethylene/polyisobutylene, polyisobutylene/polystyrene and natural rubber/polystyrene.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1978
Accession Number
ADA055484

Entities

People

  • Ryong-joon Roe

Organizations

  • University of Cincinnati

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Block Copolymers
  • Chemistry
  • Copolymers
  • Dielectric Polymers
  • Energy
  • Enthalpy
  • Entropy
  • Equations
  • Ethers
  • Free Energy
  • Materials Science
  • Natural Rubber
  • Nets
  • Polymers
  • Thermodynamic Properties
  • Thermodynamics

Fields of Study

  • Chemistry

Readers

  • Combustion science or combustion engineering.
  • Organizational Psychology.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics