کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1884144 1043329 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carbon ion beam induced modifications of optical, structural and chemical properties in PADC and PET polymers
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Carbon ion beam induced modifications of optical, structural and chemical properties in PADC and PET polymers
چکیده انگلیسی

We report a study on the carbon ion beam induced modifications on optical, structural and chemical properties of polyallyl diglycol carbonate (PADC) commercially named as CR-39 and Polyethyleneterepthalate (PET) polymer films. These films were then irradiated by 55 MeV C5+ ion beam at various fluences ranging from 1×1011 to 1×1013 ions/cm2. The pristine as well as irradiated samples were subjected to UV–Visible spectral study (UV–Vis), Photoluminescence (PL), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. It has been found that ion irradiation may induce a sort of defects in the polymers due to chain scission and cross linking as observed from PL spectral study. It is revealed from UV–Vis spectra absorption edge shifted towards longer wavelength region after irradiation with increasing ion fluence. This shift clearly reflects decrease in optical band gap. The XRD study indicates the gradual decrease in intensity in case of PADC with increasing ion fluence. However, the intensity pattern increased in case of PET at fluence of 1011 ion/cm2 then decreased with further increase in fluence. Crystalline size of PADC was found to be decreasing gradually with increase of ion fluence. Whereas, the crystalline size of PET films found to increase with lower fluence and decreases with higher ion fluence. FTIR spectrum also shows the change in intensity of the typical bands after irradiation in the both the polymers. The results so obtained can be used successfully in heavy ions dosimetry using well reported techniques.


► Various properties of PADC and PET polymer films were investigated after ions irradiation.
► UV spectra exhibit decreasing trend in band gap for both the polymers after irradiation.
► PL study shows the formation of defects after irradiation
► XRD pattern shows a decrease in intensity of peak position with increase in ions fluence.
► FTIR spectrum shows an overall reduction in intensity of typical bands.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 81, Issue 6, June 2012, Pages 652–658
نویسندگان
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