Propagating Polymerization Fronts

Abstract

We have determined the factors that affect front velocity, conversion and molecular in frontal polymerization with liquid monomers and made some progress with solid monomer systems. We developed the first binary system, consisting of acrylate polymerization via a free-radical mechanism and the curing of an epoxy resin. A full IPN is produced. We also prepared the first frontal polymer dispersed liquid crystal (PDLC) material. We developed a method to suppress convective instabilities via tube rotation and have determined the critical conditions affecting ascending front stability with respect to natural convection. We have studied the frontal curing of DEGEBA epoxy resin. We developed new method to prepare functionally gradient materials.

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Document Details

Document Type
Technical Report
Publication Date
Nov 18, 1997
Accession Number
ADA332820

Entities

People

  • John J. Pojman

Organizations

  • University of Southern Mississippi

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Alkenes
  • Amides
  • Biochemistry
  • Chemical Synthesis
  • Chemistry
  • Convection
  • Electron Microscopy
  • Epoxy Resins
  • Free Radicals
  • Liquid Crystals
  • Materials
  • Mechanical Properties
  • Mississippi
  • Molecular Weight
  • Phase Separation
  • Polymerization
  • Universities

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Polymer Science and Technology
  • Reinforced Composite Materials