Comparative modeling studies of TSDC: investigation of Alpha-relaxation in Amorphous polymers

TL;DR

This paper introduces a new model based on dipole-dipole interactions to analyze TSDC peaks in amorphous polymers, successfully fitting experimental data and comparing favorably with existing techniques.

Contribution

A novel dipole-dipole interaction model for TSDC peak analysis in amorphous polymers, providing accurate parameter estimation and validation against established methods.

Findings

Model accurately fits PVC TSDC data

Provides reliable estimates of activation energy and relaxation parameters

Outperforms traditional methods in peak parameter determination

Abstract

A model to investigate Thermally Stimulated Depolarization Current (TSDC) peak parameters using the dipole-dipole interaction concept is proposed by the author in this work. The proposed model describe the (TSDC) peak successfully since it gives a significant peak parameters (i.e. Activation energy (E) and the per-exponential factor (\tau_0) in addition to the dipole-dipole interaction strength parameter (di). Application of this model to determine the peak parameters of polyvinyl chloride(PVC) polymer is presented . The results show how the model fit the experimental thermal sampling data. Finally the results are compared to the well know techniques; the initial rise method (IR), the half width method (HW) in addition to the Cowell and Woods analysis.