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Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
The influence of gamma-rays irradiation on the structure and crystallinity of heteropoly acid doped PVA
The influence of gamma-rays irradiation on the structure and crystallinity of heteropoly acid doped PVA
Subject
:
physics
Document Language
:
English
Abstract
:
This contribution represents the manufacturing of a hybrid organic-inorganic proton conducting compound, which involves the introduction of heteropoly acid (HPA) of different concentrations into poly-vinyl alcohol (PVA). These compounds were irradiated by gamma-rays at different doses of 10, 20, 30, and 40 kGy. The unirradiated and irradiated compounds were characterized by XRD and DSC. The XRD results showed that the crystallinity and d-spacing were strongly influenced by the amount of HPA and irradiation doses. The DSC results showed that the melting point was decreased as a result of HPA concentration and irradiation doses. The degree of crystallinity calculated from XRD is in good agreement with that calculated from DSC. The activation energy of the Unirradiated and irradiated compounds was calculated using the Flynn-Wall-Ozawa model
ISSN
:
0969-806X
Journal Name
:
RADIATION PHYSICS AND CHEMISTRY
Volume
:
81
Issue Number
:
6
Publishing Year
:
1433 AH
2012 AD
Article Type
:
Article
Added Date
:
Tuesday, July 25, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
Waleed E Mahmoud
Mahmoud, Waleed E
Investigator
Doctorate
w_e_mahmoud@yahoo.com
A.A Al-Ghamdi,
Al-Ghamdi, A.A
Researcher
Doctorate
Mohammad W Kadi
Kadi, Mohammad W[
Researcher
Doctorate
Files
File Name
Type
Description
42246.pdf
pdf
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