Relaxation processes in poly(butylene teraphthlate) studied by the spin probe spectroscopy

F. Lembicz; F. Ukielski

Published : 2022-09-17

Vol. 48 No. 4 (2003)

Relaxation processes in poly(butylene teraphthlate) studied by the spin probe spectroscopy

F. Lembicz F. Ukielski

Abstract

The results of investigations of relaxation processes in an amorphous part of poly(butylene terephthalate) (PBT) are presented. Electron paramagnetic resonance (EPR) measurements in the version of a spin probe method (ESR) were performed in the temperature range of 4-380 K. The study has revealed that in the low temperature range the spin probe behavior reflects the relaxation process (gamma) identified previously by other methods. The microwave power dependence of the ESR signal intensity indicates the usefulness of the saturation transfer method in the investigations of PBT and other polymers.

Keywords

poli(tereftalan butylenu) ; elektronowy rezonans paramagnetyczny ; sondy spinowe ; procesy relaksacyjne poly(butylene terephthalate) ; electron spin resonance (ESR) ; spin probes ; relaxation processes

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Lembicz, F., & Ukielski, F. (2022). Relaxation processes in poly(butylene teraphthlate) studied by the spin probe spectroscopy. Polimery, 48(4), 296-299. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1866

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F. Lembicz lemb@ps.pl

Affiliation
Technical University of Szczecin, Institute of Physics, Al. Piastów 17, 70-310 Szczecin Technical University of Szczecin, Polymer Institute, Section of Technology of Elastomers and Chemical Fibers, ul. Pułaskiego 10, 70-310 Szczecin, Poland,

F. Ukielski