TY - GEN
T1 - Comparative study of methyl position effect in poly (methyl) cyclohexyl methacrylates by TSDC and TW
AU - Espinosa, Gustave Domínguez
AU - Sanchis, M. J.
AU - Díaz-Calleja, R.
AU - Pagueguy, Claudia
AU - Gargallo, L.
AU - Radiç, D.
PY - 2004
Y1 - 2004
N2 - A comparative study of the effect of the position of the methyl group in the cyclohexyl ring in poly (2-methy) cyclohexyl methacrylate (P2MCHM), poly (3-methyl) cyclohexyl methacrylate (P3MCHM) and poly(4-methyl) cyclohexyl methacrylate (P4MCHM) has been carried out by thermally stimulated depolarization currents (TSDC), and thermal windows (TW) measurements. In the TSDC global spectra we appreciate the evolution of the subglass and glass transition absorptions as a function of the position of the methyl group. For each sample fractional polarization is used to describe the fine structure of these complex spectra. By fitting the experimental data to standard models, the kinetic parameters of the relaxations observed have been evaluated. In the glassy state, the complex dielectric permittivity in the frequency domain was calculated at several temperatures from elementary- peaks obtained by partial TSDC curves.
AB - A comparative study of the effect of the position of the methyl group in the cyclohexyl ring in poly (2-methy) cyclohexyl methacrylate (P2MCHM), poly (3-methyl) cyclohexyl methacrylate (P3MCHM) and poly(4-methyl) cyclohexyl methacrylate (P4MCHM) has been carried out by thermally stimulated depolarization currents (TSDC), and thermal windows (TW) measurements. In the TSDC global spectra we appreciate the evolution of the subglass and glass transition absorptions as a function of the position of the methyl group. For each sample fractional polarization is used to describe the fine structure of these complex spectra. By fitting the experimental data to standard models, the kinetic parameters of the relaxations observed have been evaluated. In the glassy state, the complex dielectric permittivity in the frequency domain was calculated at several temperatures from elementary- peaks obtained by partial TSDC curves.
UR - https://www.scopus.com/pages/publications/15844401984
U2 - 10.1109/icsd.2004.1350297
DO - 10.1109/icsd.2004.1350297
M3 - Conference contribution
AN - SCOPUS:15844401984
SN - 0780383486
SN - 9780780383487
T3 - Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
SP - 91
EP - 94
BT - Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
Y2 - 5 July 2004 through 9 July 2004
ER -