Determination of Polymer-Solvent Interaction Parameters Using PiezoelectricCrystals, with Reference to the Sorption of Chemical Warfare Agents

摘要

Polymeric materials which show sensitivity to certain classes of organic vaporsand give minimal responses from interferents are being sought for use as coatings on piezoelectric mass detection devices. The present work illustrates some simple methods for the determination of fundamental properties such as polymer-solvent interaction parameters and diffusion constants, and relates these to the sensitivity and response time of the sensor.