TY - JOUR
T1 - Modification of Lexan polycarbonate induced by electron irradiation
AU - Hareesh, K.
AU - Ramaprasad, A. T.
AU - Sanjeev, Ganesh
N1 - Funding Information:
One of the authors (KH) thanks BRNS, DAE, Government of India, for providing financial assistance. The authors thank the staff of Microtron Centre for their help and support during the course of this work. The authors acknowledge the staff of STIC, Cochin, and the staff of USIC, Karnatak University, for their help during the characterisation of the samples.
PY - 2012/4/1
Y1 - 2012/4/1
N2 - An 8MeV electron-induced modification of Lexan polycarbonate (Lexan) films has been studied systematically using UV-visible spectroscopy, LCR meter, X-ray diffractogram (XRD) and differential scanning calorimetry (DSC) techniques. The optical properties of the Lexan films showed a decrease in the optical energy gap with an increase in the electron dose. The AC conductivity and dielectric constant were found to change significantly due to irradiation, and the dielectric constant was found to obey the universal law of dielectric constant. The XRD results show that the crystallite size and the percentage of crystallinity of films decrease after irradiation. The decrease in glass transition temperature shown by DSC studies reveals that the polymeric system has changed towards a more disordered state.
AB - An 8MeV electron-induced modification of Lexan polycarbonate (Lexan) films has been studied systematically using UV-visible spectroscopy, LCR meter, X-ray diffractogram (XRD) and differential scanning calorimetry (DSC) techniques. The optical properties of the Lexan films showed a decrease in the optical energy gap with an increase in the electron dose. The AC conductivity and dielectric constant were found to change significantly due to irradiation, and the dielectric constant was found to obey the universal law of dielectric constant. The XRD results show that the crystallite size and the percentage of crystallinity of films decrease after irradiation. The decrease in glass transition temperature shown by DSC studies reveals that the polymeric system has changed towards a more disordered state.
UR - http://www.scopus.com/inward/record.url?scp=84859551754&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859551754&partnerID=8YFLogxK
U2 - 10.1080/10420150.2011.618839
DO - 10.1080/10420150.2011.618839
M3 - Article
AN - SCOPUS:84859551754
SN - 1042-0150
VL - 167
SP - 268
EP - 274
JO - Radiation Effects and Defects in Solids
JF - Radiation Effects and Defects in Solids
IS - 4
ER -