Poly(ethylene maleate) - Cyclopentadiene: A Model Reactive Polymer-Vapor System for Evaluation of a SAW (Surface Acoustic Wave) Microsensor

Abstract

A model reactive polymer vapor system based on the Diels Alder reaction has been used to verify the behavior of a surface acoustic wave (SAW) device chemical microsensor. Poly(ethylene maleate) (PEM) was synthesized and characterized both spectroscopically and thermally for use as a selective receptor of cyclopentadiene vapor. The formation of a non reversible Diels Alder adduct between a PEM coating on a SAW delay line oscillator and the cyclopentadiene results in a film mass change which is easily measured by the SAW device. Physical absorption of non reacting solvent vapors can be distinguished from the cyclopentadiene interaction. The resulting cyclopentadiene dosimeter is capable of detecting 200 ppm of vapor in 1 minute. Significantly lower detection limits are possible if longer vapor integration periods are allowed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 23, 1984
Accession Number
ADA141531

Entities

People

  • A. Snow
  • H. Wohltjen

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Alcohols
  • Alkenes
  • Anhydrides
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Chlorides
  • Delay Lines
  • Detectors
  • Films
  • Frequency Shift
  • Measurement
  • Organic Chemistry
  • Spectra
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves

Fields of Study

  • Chemistry

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Electronics Engineering
  • Surface Engineering/Surface Coating Technology.