Study of optical,structural and chemical properties of neutron irradiated PADC film |
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| Affiliation: | 1. Department of Physics, Sant Longowal Institute of Engineering and Technology Longowal Distt. Sangrur, Punjab-148106, India;2. Inter University Accelerator Center, Aruna Asif Ali Marg, New Delhi-110067, India;3. Department of Physics, National Institute of Technology, Kurukshetra-136119, India;4. Aggarwal College, Ballabgarh, Haryana-121004, India;5. Department of Physics, M.S. University of Baroda, Vadodara 390 002, Gujarat, India;1. Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar, Pb, 144011, India;2. Department of Chemistry, Shoolini University, Solan, H.P. 173212, India;3. Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein ZA9300, South Africa;4. Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131, Bologna, Italy;5. Department of Chemistry, Bahra University, Shimla Hills, Waknaghat 173 234, Dist. Solan, H.P., India;1. Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, 144 011, India;2. DAV College, Jalandhar, India;1. Institute of Forensic Science & Criminology, Panjab University, Chandigarh-160 014, India;2. Department of Physics, Chandigarh University, Mohali, Punjab, 140413, India;3. Department of Physics, National Institute of technology, Srinagar (J&K)-190006, India;4. Y.M.C.A. University of Science and Technology, Faridabad, 121006, Haryana, India;1. Department of Chemistry, DAV University Jalandhar, Punjab, 144012, India;2. Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh, 160014, India;3. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main Street, Worcester, MA, 01610, United States;4. Department of Chemistry, University of Delhi, Delhi, 110007, India;5. Department of Chemistry, MCM DAV College Kangra (HP), 176001, India;1. State Key Laboratory of NBC Protection for Civilian, P.O. Box 1044, Ext. 200, Beijing 102205, PR China;2. Solid Dosimetric Detector and Method Laboratory, P.O. Box 1044, Ext. 204, Beijing 102205, PR China;1. Department of Mechanical Engineering, Chandigarh University, Mohali, Punjab, 140413, India;2. Department of Physics, Chandigarh University, Mohali, Punjab, 140413, India;3. Department of Physics, National Institute of Technology, Srinagar (J&K)-190006, India;4. Thapar Institute of Engineering and Technology, Patiala, Punjab, 147001, India;5. Department of Chemical Engineering, C.V. Raman College of Engineering, Bhubaneswar 752054, Odisha, India |
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| Abstract: | We have investigated neutron irradiation effects on the optical, structural and chemical properties of polyallyl diglycol carbonate (PADC) polymer, commercially named as CR-39. For this purpose, PADC samples were exposed with 4 MeV Am–Be neutron source at fluences varying from 2.36 × 106 to 5.94 × 107 n/cm2. The modifications so induced were analyzed using UV–Visible spectroscopy, X-ray diffraction Measurement (XRD), Photoluminescence (PL) and Fourier Transform infrared (FTIR) spectroscopy in the total attenuation reflection (ATR) mode. UV–Vis spectra of pristine and neutron irradiated PADC polymer sheets exhibit a decreasing trend in optical band gap. This decline in optical band gap with increasing fluence has been discussed on the basis of neutron irradiation induced defects in PADC. The XRD pattern of PADC shows the decreasing intensity of peak positions with increasing in fluence, which suggest that semicrystallinity of PADC changes slightly to amorphous phase after irradiation. At low fluence, crystallinity was found to increase but at higher fluence, it decreased which could be ascribed to neutron- induced defects in the polymer samples. Crystallite size calculated using Scherrer formula indicates a change and reflects the formation of disordered system in the irradiated polymer samples. The PL spectra show that the intensity of PL peak decreased with increase in fluence, which may be due to the disordered system via creation of defects in the irradiated polymer. The FTIR spectrum shows an overall reduction in intensity of the typical bands, indicating the degradation of PADC polymer after irradiation. These results so obtained can be used successfully in dosimetery using well reported protocols. |
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