Related Experiment Video

Updated: Jul 7, 2026

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites
06:34

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Published on: September 19, 2020

Broadband dielectric investigation on poly(vinyl pyrrolidone) and its water mixtures

Silvina Cerveny1, Angel Alegría, Juan Colmenero

  • 1Centro de Fisica de Materiales, Centro Mixto CSIC-Universidad del País Vasco (UPV/EHU), Apartado 1072, 20018 San Sebastian, Spain. scerveny@sw.ehu.es

The Journal of Chemical Physics
|February 6, 2008
PubMed

More Related Videos

Inkjet-printed Polyvinyl Alcohol Multilayers05:11

Inkjet-printed Polyvinyl Alcohol Multilayers

Published on: May 11, 2017

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

Related Concept Videos

Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
Susceptibility, Permittivity and Dielectric Constant01:26

Susceptibility, Permittivity and Dielectric Constant

When placed in an external electric field, a dielectric material gets polarized. The charge density in the dielectric material is given by the sum of the bound and free charge densities, while the total charge density can also be written in terms of the total electric field. The bound charge density can be measured in terms of polarization, leading to the relationship between electric displacement and polarization.