High Temperature Study of Molecular Motion in Polyphenylene Sulfide by Thermally Stimulated Currents

Jurga, J.; Hruszka, P.; Hilczer, B.; Kułek, J.

doi:10.1515/zna-1984-0306

Zeitschrift Für Naturforschung A

1984

DOI: 10.1515/zna-1984-0306

|View full text |Cite

High Temperature Study of Molecular Motion in Polyphenylene Sulfide by Thermally Stimulated Currents

J. Jurga

P. Hruszka

B. Hilczer

et al.

Abstract: Thermally stimulated currents (TSC) in polyphenylene sulfide were measured in unpolarized and polarized samples. The TSC thermograms show a rapid increase in current at about 200 °C with an activation energy of about 1.6 eV. Additionally, in polarized samples a peak at about 150 °C related with the reorientational motions of the chain was found.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1993

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 7 publications

(13 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

Relaxation phenomena in the vicinity of the glass transition of poly (p-phenylene sulfide)

Shimizu

Nakayama

1993

Journal of Applied Physics

View full text Add to dashboard Cite

Thermally stimulated depolarization current (TSDC), thermal sampling (TS) TSDC, and dielectric spectra of poly(p-phenylene sulfide) (PPS) were measured in the vicinity of the glass transition temperature Tg. The global TSDC spectra of amorphous PPS with varying the poling temperature revealed the presence of two TSDC peaks. Only a very intense peak associated with the α relaxation (the glass transition) was observed at 367 K in the global TSDC spectra poled at above 360 K, while an additional peak was observed at around 330 K in those spectra poled at below 355 K. This additional peak observed at below Tg was considered to be originated from the secondary sub-Tg relaxation. Both the sub-Tg and the α relaxations were analyzed from elementary TSDC spectra obtained by the TS technique. It was found that the temperature dependence of the relaxation times in both relaxations was ruled by the same compensation law. The physical meaning of the compensation temperature is discussed in relation to the thermal-expansion coefficient. Moreover, the dielectric constant ε′ and dielectric loss factor ε″ of amorphous PPS are calculated using the relaxation parameters derived from the TS-TSDC analysis. Numerical results of dielectric data are represented by three-dimensional and/or two-dimensional spectra and are compared with the available experimental data. The simulated dielectric spectra forecast that the sub-Tg relaxation should appear as a peak or shoulder of ε″ at lower-temperature and ultra-low-frequency regions in the ac measurements.

show abstract

Relaxation phenomena in the vicinity of the glass transition of poly (p-phenylene sulfide)

Shimizu

Nakayama

1993

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

High Temperature Study of Molecular Motion in Polyphenylene Sulfide by Thermally Stimulated Currents

Cited by 1 publication

References 7 publications

Relaxation phenomena in the vicinity of the glass transition of poly (p-phenylene sulfide)

Relaxation phenomena in the vicinity of the glass transition of poly (p-phenylene sulfide)

Contact Info

Product

Resources

About