Di(cyanate Ester) Networks Based on Alternative Fluorinated Bisphenols with Extremely Low Water Uptake

Abstract

A new polycyanurate network exhibiting extremely low moisture uptake has been produced via the treatment of perfluoroyclobutane-containing Bisphenol T with cyanogen bromide and subsequent thermal cyclotrimerization. The water uptake, at 0.56 + or - 0.10% after immersion in water at 85 degrees C for 96 hours, represents some of the most promising moisture resistance observed to date in polycyanurate networks. This excellent performance derives from a near optimal value of the glass transition at 190 degrees C at full cure. Superior dielectric loss characteristics compared to commercial polycyanurate networks based on Bisphenol E were also observed. Polycyanurate networks derived from this new monomer appear particularly well-suited for applications such as radomes and spacecraft where polycyanurates are already widely recognized as providing outstanding properties.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2013
Accession Number
ADA601130

Entities

People

  • Andrew J. Guenthner
  • Christopher M. Sahagun
  • Cynthia A. Corley
  • Joseph M Mabry
  • Josiah T. Reams
  • Kevin R. Lamison
  • Mohammad K. Hassan
  • Sarah E. Morgan
  • Scott T Iacono

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Chemistry
  • Cyanides
  • Dielectric Permittivity
  • Glass Transition Temperature
  • Mass Spectrometry
  • Military Research
  • Physical Properties
  • Polymers
  • Resins
  • Spectrometers
  • Spectrometry
  • Spectroscopy
  • Thermosetting Plastics
  • Transition Temperature
  • United States

Readers

  • Polymer Science and Engineering.
  • Systems Analysis and Design

Technology Areas

  • Space