Title :
Dielectric spectroscopic study of structural relaxation of PET
Author :
Bacharan, C. ; Bernes, Alain ; Lacabanne, C.
Author_Institution :
Polymer Phys. Lab., Univ. Paul Sabatier, Toulouse, France
Abstract :
The aim of this work is to study physical ageing by ThermoStimulated Current (TSC) experiments. The polymers under investigation are amorphous and semi-crystalline PET. The results presented here focus on the glass transition. The question of the effect of ageing on the constrained amorphous chains in the case of semi-crystalline PET is put forward
Keywords :
ageing; dielectric depolarisation; enthalpy; glass transition; polymer films; polymer structure; relaxation; thermally stimulated currents; activation enthalpy; amorphous PET; biaxially stretched films; constrained amorphous chains; depolarisation current; dielectric spectroscopy; glass transition; physical ageing; polyethylene terephthalate; semi-crystalline PET; structural relaxation; thermostimulated current; Aging; Amorphous materials; Cooling; Dielectrics; Electrochemical impedance spectroscopy; Glass; Polarization; Polymers; Positron emission tomography; Temperature;
Conference_Titel :
Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-5025-1
DOI :
10.1109/ISE.1999.832094
