Accession Number : ADA296477

Title :   Pyroelectricity in Nylon 7 and Nylon 11 Ferroelectric Polymers.

Descriptive Note : Technical rept. 1 Jun 94-31 May 95,

Corporate Author : RUTGERS - THE STATE UNIV PISCATAWAY NJ COLL OF ENGINEERING

Personal Author(s) : Esayan, S. ; Scheinbeim, J. I. ; Newman, B. A.

PDF Url : ADA296477

Report Date : 11 JUL 1995

Pagination or Media Count : 13

Abstract : The temperature and frequency dependences of the pyroelectric current have been studied in Nylon 7 and Nylon 11 ferroelectric polymer films. A remarkable change of value of the pyroelectric currents near the glassy transition temperature (Tg) was observed. Analyses of experimental data show that the temperature behavior of pyroelectric currents can be explained by the competition of the primary and secondary effects. Currents due to these effects have different signs. Below Tg, the dominant component of the pyroelectric current is primary pyroelectricity, and above T the secondary effect becomes dominant. Mechanisms producing pyroelectric currents in Nylon 7 and Nylon 11 are discussed.

Descriptors :   *TRANSITION TEMPERATURE, *PYROELECTRICITY, THERMAL PROPERTIES, EXPERIMENTAL DATA, NYLON, ELECTRIC CURRENT.

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE