Abstract
This work deals with a comparison of data obtained from differential scanning calorimetry (DSC) and thermally stimulated depolarization current (TSDC) investigations. Measurements were performed on various poly(ethylene terephthalate) films: a wholly amorphous, a thermally crystallized and drawn samples.
For each specimen, the TSDC complex spectra, resolved into elementary ones, led to the determination of the classical compensation temperature (T c ). The glass transition temperature (T g) and the fictive equilibrium temperature (T f) were determined by means of DSC. It appears thatT c is different fromT g and very close toT f.
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B. B. Sauer, R. Beckerbauer and L. Wang, J. Polym. Sci., Polym. Phys., 31 (1993) 1861.
C. Cabot, M. Jutigny, E. Dargent, J. Bayard, J. M. Saiter and J. Grenet, Cal. Therm. Anal., 26 (1995) 215.
A. Bernes, G. Teyssedre and C. Lacabanne, Cal. Therm. Anal., 26 (1995) 185.
B. B. Sauer and P. Avakian, Polymer, 33 (1992) 4682.
J. Perez “Physique et mécanique des polymères amorphes”, Tec & Doc Lavoisier, Paris 1992.
C. T. Moynihan, A. J. Easteal, J. Wilder and J. Tucker, J. Phys. Chemistry, 78 (1974) 2673.
J. Grenet, J. M. Saiter, C. Vautier and J. Bayard, J. Thermal Anal., 38 (1992) 557.
A. Q. Tool, J. Am. Ceram. Soc., 29 (1946) 240.
J. M. G. Cowie and R. Fergusson, Polymer, 34 (1993) 2135.
O. S. Narayanaswami, J. Am. Ceram. Soc., 54 (1971) 491.
J. M. Saiter, A. Assou, J. Grenet and C. Vautier, Phil. Mag. B, 64 (1991) 33.
C. Lacabanne, A. Lamure, G. Teyssedre, A. Bernes and M. Mourgues, J. Non-Cryst. Solids, 172–174 (1994) 884.
E. Dargent, thèse d'université, University of Rouen, Mont-Saint-Aignan, France, 1994.
D. Langevin, J. Grenet and J. M. Saiter, Eur. Polym. J., 30 (1994) 339.
J. Van Turnhout, “Thermally stimulated discharge of polymer electrets”, Elsevier, Amsterdam 1975.
J. J. Santais, Thesis, CNAM, Rouen, France, 1992.
C. T. Moynihan, A. J. Easteal, M. A. Debolt and J. Tucker, J. Amer. Ceram Soc., 59 (1976) 12.
E. Dargent, J. J. Santais, J. M. Saiter, J. Bayard and J. Grenet, J. Non Cryst. Solids, 172–174 (1994) 1062.
E. Dargent, J. Grenet and X. Auvray, J. Thermal Anal., 41 (1994) 1409.
S. Z. T. Cheng, R. Pan and B. Wunderlich, Macromol. Chem., 189 (1988) 244.
C. Cabot, E. Dargent, M. Jutigny, J. M. Saiter, J. Bayard and J. Grenet, presented at the 1st International Conference on Mechanics of Time Dependent Materials, Ljubljana 1995.
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Dargent, E., Cabot, C., Saiter, J.M. et al. The glass transition. Journal of Thermal Analysis 47, 887–896 (1996). https://doi.org/10.1007/BF01981823
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DOI: https://doi.org/10.1007/BF01981823