Dielectric relaxation kinetics at higher temperature mode in cellulose
by Nasser Benrekaa
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 5, No. 4, 2014

Abstract: In this work the complex dielectric permittivity was measured from 10⁻¹ to 1 MHz by dielectric dynamic spectroscopy (DDS). Thermally stimulated depolarisation current (TSDC) technique is used to investigate molecular mobility of cellulose. At high temperature, the various dielectric relaxation phenomena are separated by applying a recent analytical protocol. The comparison between the activation enthalpy values obtained by both techniques allows assignment of the α-mode to cooperative movements of nanometric sequences of the main chain. The strong/fragile model is used to explain the Arrhenius behaviour of this mode. The influence of water content on secondary and primary relaxation modes was examined.

Online publication date: Thu, 26-Feb-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials Engineering Innovation (IJMATEI):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com