The determination of the activation energy of a relaxational process from thermally stimulated depolarisation currents (TSDC) data: An illustration with the β-relaxation of maltitol

Thermochimica Acta

Volumn 426, Issue 1-2, 2005, Pages 185-190

  Moura Ramos, Joaquim J ^a   Correia, Natália T ^a  

^a INSTITUTO SUPERIOR TÉCNICO   (Portugal)

Author keywords

Heating rate; Molecular mobility; Relaxation time; Secondary relaxation

Indexed keywords

HEAT TRANSFER; KINETIC ENERGY; PARAMETER ESTIMATION; RELAXATION PROCESSES; THERMAL EFFECTS;

MOLECULAR MOBILITY; TEMPERATURE DEPENDENCE; THERMAL SAMPLING (TS); THERMALLY STIMULATED DEPOLARISATION CURRENTS (TSDC);

ACTIVATION ENERGY;

MALTITOL;

ARTICLE; DEPOLARIZATION; ENERGY; HEATING; MATHEMATICAL COMPUTING; TEMPERATURE DEPENDENCE; THERMAL STIMULATION;

EID: 12344295449     PISSN: 00406031     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tca.2004.07.020     Document Type: Article

References (11)

1. G. Teyssedre, S. Mezghani, A. Bernes, and C. Lacabanne Thermally Stimulated Currents of Polymers 1997 American Chemical Society Washington
2. C. Alvarez, N.T. Correia, J.J. Moura Ramos, and A.C. Fernandes Glass transition relaxation and fragility in a side-chain liquid crystalline polymer: a study by TSDC and DSC Polymer 41 2000 2907 2914
3. N.T. Correia, C. Alvarez, J.J. Moura Ramos, and M. Descamps The β-α branching in d-sorbitol as studied by thermally stimulated depolarisation currents (TSDC) J. Phys. Chem. B 105 2001 5663 5669
4. N.T. Correia, J.J. Moura Ramos, M. Descamps, and G. Collins Molecular mobility and fragility in indomethacin: a thermally stimulated depolarisation currents study Pharm. Res. 18 2001 1767 1774
5. B. Sixou, A. Faivre, L. David, and G. Vigier Intermolecular and intramolecular contributions to the relaxation process in sorbitol and maltitol Mol. Phys. 99 2001 1845 1850
6. g and the fragility index of indomethacin, predicted from the influence of the heating rate on the temperature position and on the intensity of thermally stimulated depolarisation current peak Pharm. Res. 19 2002 1879 1884
7. R. Chen, and Y. Kirsch Analysis of Thermally Stimulated Processes 1981 Pergamon Press Oxford
8. J. van Turnhout Thermally Stimulated Discharge of Polymer Electrets 1975 Elsevier Science Publishing Co. Amsterdam
9. G. Teyssèdre, and C. Lacabanne Some considerations about the analysis of thermostimulated depolarisation peaks J. Phys. D: Appl. Phys. 28 1995 1478 1487
10. J.J. Moura Ramos, and N.T. Correia The Deborah number, relaxation phenomena and thermally stimulated currents Phys. Chem. Chem. Phys. 3 2001 5575 5578
11. C.T. Moynihan, A.J. Esteal, J. Wilder, and J. Tucker Dependence of the glass transition temperature on heating and cooling rates J. Phys. Chem. 76 1974 2673 2677