Metastable Polymers for On Demand Transient Electronic Packaging

Abstract

The thermally-triggered depolymerization of cyclic poly(phthalaldehyde) (cPPA) was investigated and tailored to enable thermal processing and molding in bulk quantities. Stabilization of cPPA at elevated temperature was accomplished by removal of the latent Lewis acid catalyst BF3 and by addition of radical inhibitors and a Lewis base. Addition of a plasticizer to the stabilized cPPA enabled the fabrication of a monolithic solid polymer via hot press molding. The bulk material retains the transient properties of cPPA when triggered by sufficient heat or acid.

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Document Details

Document Type
Technical Report
Publication Date
Jan 17, 2018
Accession Number
AD1045180

Entities

People

  • Jeffrey S. Moore
  • John A. Rogers
  • Nancy Sottos
  • Scott R. White

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Bulk Materials
  • Chemical Reactions
  • Depolymerization
  • Fabrication
  • Glass Transition Temperature
  • Lewis Acids
  • Lewis Bases
  • Liquid Chromatography
  • Materials
  • Materials Science
  • Molecules
  • Polymer Degradation
  • Polymeric Films
  • Polymers
  • Transition Temperature

Readers

  • Molecular Genetics
  • Polymer Science and Engineering.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics