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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(12) [December 2012] >
| Title: | Optical and structural study of aromatic polymers irradiated by gamma radiation |
| Authors: | Ahmed, Bashir
Raghuvanshi, S K
Siddhartha
Srivastava, A K
Krishna, J B M
Wahab, M A |
| Keywords: | Gamma irradiation
Kapton
PES
XRD
UV-VIS spectroscopy |
| Issue Date: | Dec-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Aromatic polymers
have proven their potential in the field of electronics, space and nuclear
technology. Aromatic polymers have been found to have very good electrical
properties, mechanical strength and high melting points (260°C to 350°C) due to
the presence of aromatic ring in the polymer back bone. In the present paper,
the optical and structural properties of virgin and high dose (500-2000 kGy)
 -irradiated samples of aromatic polymers such as kapton and PES have been
studied. These polymer samples were analyzed by using UV-Visible
spectrophotometer in the wavelength range
190-900 nm. From the optical spectrum, we found that the absorption and optical
band gaps (Eg) of virgin and
irradiated kapton and PES polymer samples decrease with increasing dose. The
existence of the maximum absorption, their shifting and broadening due to gamma
irradiation have been investigated. The structural studies have been done by
using X-ray diffractometry (XRD) analysis. The diffraction pattern of kapton
and PES polymers indicates recrystallization and increase in the crystallinity
with increasing dose.
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| Page(s): | 892-898 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(12) [December 2012]
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