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186952

Electric Modulus and Scaling of Chitosan/PVA Biopolymer Blend

Article

Last updated: 01 Jan 2025

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-

Tags

Material science

Abstract

Dielectric measurements of chitosan/PVA polymer blends were performed at various temperatures in a wide frequency range. Higher values of / and // at higher temperatures and lower frequencies are correlated to interfacial polarization (IP) and DC conduction, respectively. Isochronal behavior of // against temperature revealed that chitosan and PVA is characterized by a dipolar relaxation peak at T= 393 K and 348 K, respectively. The activation energy (Ea) values of conduction have been estimated for all samples. Cole-Cole behavior revealed that, with increasing the temperature the semicircles area of the samples increased and the semicircle intercept are shifted towards higher value of / indicating that, the capacitance is increased. Complex electric modulus (M*) of all samples is investigated and it is found that, real part (M/) of the complex electric modulus showed nonlinear behavior with frequency, whereas, (M//), i.e., the imaginary part, is characterized by a relaxation peaks for all samples. The scaling behavior has been carried out at T= 333 K, as a representative temperature and it is found that, all the curves are overlapped leading to a master curve indicating that, dynamic process is temperature independent.

DOI

10.21608/ejchem.2021.81068.4015

Keywords

Chitosan, PVA, Electric modulus, relaxation, scaling

Authors

First Name

M. T.

Last Name

Ahmed

MiddleName

-

Affiliation

1Dept. of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Kingdom of Saudi Arabia. 2Polymer Research Group, Physics Dept., Faculty of Science, Mansoura University, 35516

Email

moustf_1@yahoo.com

City

-

Orcid

0000-0002-8190-8648

First Name

H.

Last Name

Elhendawy

MiddleName

-

Affiliation

Department of Basic Science, Delta Higher Institute for Engineering and Technology, 11152 Mansoura, Egypt

Email

thmnhabiba@yahoo.com

City

Egypt

Orcid

-

First Name

Z. M.

Last Name

Elqahtani

MiddleName

-

Affiliation

Dept. of Physics, College of Science, Princess Nourah bint Abdulrahman University, Ryiadh, Saudi Arabia

Email

zmelqahtani@pnu.edu.sa

City

Ryiadh,

Orcid

-

First Name

Wafaa

Last Name

Elsharkawy

MiddleName

Bakr

Affiliation

physics, faculty of science and humanities studies, prince Sattam bin Abdulaziz university, Alkharj, Saudi Arabia

Email

drwafaa8@gmail.com

City

-

Orcid

0000-0002-3448-8441

First Name

M. A.

Last Name

Azzam

MiddleName

-

Affiliation

Chemistry Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University, 11942 Al-Kharj

Email

majid_azzam@yahoo.com

City

Alkharj

Orcid

-

First Name

Tarek

Last Name

Fahmy

MiddleName

-

Affiliation

1Dept. of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Kingdom of Saudi Arabia. 2Polymer Research Group, Physics Dept., Faculty of Science, Mansoura University, 35516

Email

tfahmy_5@yahoo.com

City

Alkharj

Orcid

orcid.org/0000-0002-

Volume

65

Article Issue

1

Related Issue

28750

Issue Date

2022-01-01

Receive Date

2021-06-24

Publish Date

2022-01-01

Page Start

459

Page End

471

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 65_Issue 1_Pages 459-471.pdf

PDF . 1.0MB

Link

https://ejchem.journals.ekb.eg/article_186952.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=186952

Order

46

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Electric Modulus and Scaling of Chitosan/PVA Biopolymer Blend

Details

Type

Article

Created At

22 Jan 2023