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A Comparative Study of the Effects of Oxygen Ions Upon the Free Volume and Physico‐Chemical Properties of Makrofol (KG & N) Polycarbonate
Author(s) -
Gupta Sanjeev Kumar,
Singh Paramjit,
Awasthi K.,
Roychowdhury A.,
Kumar Rajesh
Publication year - 2015
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201400194
Subject(s) - polymer , irradiation , polycarbonate , materials science , fourier transform infrared spectroscopy , absorption (acoustics) , analytical chemistry (journal) , oxygen , absorption spectroscopy , ion , volume (thermodynamics) , infrared spectroscopy , nuclear chemistry , spectroscopy , chemistry , chemical engineering , organic chemistry , optics , physics , engineering , composite material , quantum mechanics , nuclear physics
Summary Makrofol (KG & N) polymers are the important class of polycarbonates which are used as solid state nuclear track detectors. The effect of 100 MeV oxygen ions (O 7+ ) on the free volume and physico‐chemical properties of Makrofol (KG & N) polymers were studied. The pristine and irradiated samples were characterized by positron annihilation lifetime spectroscopy, X‐ray diffraction, UV‐visible and FTIR. A comparative study of free volume was carried out from the obtained values of the pristine and irradiated samples of both the polymers. The absorption edges of UV‐visible were found to be shifted towards longer wavelength region. The intensities of the various absorption bands of the infrared spectra were found to be modified; which indicated the changes in the chemical properties of the exposed samples.