Dielectric relaxational behavior of poly(diitaconate)s containing cyclic rings in the side chain

Diaz-Calleja, R; Garcia-Bernabe, A; Sanchez-Martinez, E; Sanchis, MJ; Hormazabal, EA; Gargallo, L.; Radic D.

Abstract

Dielectric relaxations of several poly(diitaconate)s with cyclobutyl, cycloheptyl, and cyclooctyl groups in the side chain were investigated. The study was performed by determining the dielectric permittivity and loss, depending on the frequency and temperature. Dynamic dielectric measurements indicated several relaxations according to the chemical structure of the polymers. The dielectric behavior of these polymers was compared with those of poly(dicyclohexyl itaconate), previously reported. The a relaxations were analyzed with the Havriliak-Negami equation. Significant differences in the subglass relaxations were observed. A tentative explanation of the molecular origin of each absorption was proposed in terms of the number of carbon atoms of the ring and their conformational versatility. Strong conductive processes were observed in these polymers at low frequencies and high temperatures.

Más información

Título según WOS: Dielectric relaxational behavior of poly(diitaconate)s containing cyclic rings in the side chain
Título según SCOPUS: Dielectric relaxational behavior of poly(diitaconate)s containing cyclic rings in the side chain
Título de la Revista: JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volumen: 41
Número: 10
Editorial: John Wiley & Sons Inc.
Fecha de publicación: 2003
Página de inicio: 1059
Página final: 1069
Idioma: English
URL: http://doi.wiley.com/10.1002/polb.10434
DOI:

10.1002/polb.10434

Notas: ISI, SCOPUS