Title :
Correlation between activation parameters of dielectric relaxations and crystallinity rate of PEN
Author :
Zouzou, N. ; Martinez-Vega, J.J.
Author_Institution :
Laboratoire de Genie Electrique, Univ. Paul Sabatier, Toulouse, France
Abstract :
Both dynamic electrical analysis and differential scanning calorimetry were successfully associated to explore the relaxational processes and phase transitions in amorphous and semi-crystalline PEN samples. The main objective of this work is to understand the influence of morphological and conformational changes on the activation parameters of molecular mobility responsible for various dielectric relaxations observed in PEN.
Keywords :
amorphous state; crystal morphology; crystallisation; dielectric relaxation; differential scanning calorimetry; polymer melts; activation parameters; conformational changes; crystallinity rate; dielectric relaxations; differential scanning calorimetry; dynamic electrical analysis; molecular mobility; morphological changes; phase transitions; relaxational processes; Aerodynamics; Amorphous materials; Annealing; Calorimetry; Crystallization; Dielectrics; Glass; Metallization; Positron emission tomography; Temperature;
Conference_Titel :
Solid Dielectrics, 2004. ICSD 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8348-6
DOI :
10.1109/ICSD.2004.1350301
