Easily Processed Host-Guest Polymer Systems with High-Tg Characteristics (First-year Report)

Abstract

A series of polymethylmethacrylates (PMMAs) were prepared with varying quantities of Diels-Alder (DA) crosslinks. The DA linkages are broken at elevated temperatures and may re-form at lower temperatures, which allowed the thermally responsive PMMA (TR-PMMA) to be blended with PMMA and melt processed on a laboratory scale twin-screw extruder. The blends were easily processed at elevated temperatures, although the initial level of DA crosslinkers included in the TR-PMMA backbone were insufficient to regenerate crosslinks. Higher levels of DA crosslinked TR-PMMAs have been prepared, and are being explored for DA bond reformation and mechanical behavior. In addition, the preparation of host-guest systems incorporating chromophores has been demonstrated, which will allow the use of the TR-polymer concept for electro-optically active polymer applications.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 2012
Accession Number
AD1043642

Entities

People

  • Joshua A. Orlicki
  • P. Costanzo
  • Robert R. Hoffman

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Chemical Synthesis
  • Chemistry
  • Chromophores
  • Computer-Aided Design
  • Gel Permeation Chromatography
  • Magnetic Resonance
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Molecules
  • Optical Properties
  • Polymers
  • Spine
  • Standards

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Engineering.
  • Polymer Science and Technology