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This research aims to investigate the relaxation phenomena of poly(p-phenylene sulfide) in relation to its glass transition temperature.

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

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This research aims to investigate the relaxation phenomena of poly(p-phenylene sulfide) in relation to its glass transition temperature.
Measured thermally stimulated depolarization current and dielectric spectra of PPS near Tg.
Analyzed TSDC peaks associated with α relaxation and sub-Tg relaxation.
Calculated dielectric constant and loss factor using parameters derived from thermal sampling and TSDC analysis.
Observed a dominant TSDC peak at 367 K associated with α relaxation; an additional peak at 330 K was linked to sub-Tg relaxation.
Both relaxation times followed the same temperature dependence according to a compensation law.
Simulated dielectric spectra indicated sub-Tg relaxation appears as a peak or shoulder in the low-temperature, ultra-low-frequency regions.

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Randomized trial measures relaxation phenomena in poly(p-phenylene sulfide) near Tg, suggesting implications for material properties.

Shimizu et al. (1993) studied this question.

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