Influence of Crosslinking on the Mechanical Properties of High TG Polymers

Abstract

Research was begun on the effects of crosslinking on the mechanical properties of high-Tg polymers, with particular emphasis on the role of crosslink density, variations in the distribution of crosslink segment lengths, and the role of network imperfections. Two systems were selected: one based on the use of the Bamford synthesis to provide model, well defined networks, and the other based on the use of bisphenol-A-type epoxy/methylene dianiline resins synthesized to provide controlled variations in network properties. To date, the feasibility of varying network characteristics in a model system by introducing hydrolyzable or permanent crosslinks has been demonstrated using copolymers of styrene or ethyl acrylate with acrylic acid anhydride. The creep and stress relaxation behavior was found to reflect the characteristics of the networks.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA033078

Entities

People

  • John A. Manson
  • Leslie H. Sperling
  • Soojaa L. Kim

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Biomedical And Dental Materials
  • Chemical Engineering
  • Chemical Synthesis
  • Chemistry
  • Copolymers
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Organic Chemistry
  • Plastics
  • Resins
  • Thermosetting Plastics

Readers

  • Polymer Science and Engineering.
  • Polymer Science and Technology

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems