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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.48 [2010] >
IJPAP Vol.48(05) [May 2010] >
| Title: | Modification of optical, chemical and structural response of polymethyl methacrylate polymer by 70 MeV carbon ion irradiation |
| Authors: | Singh, Paramjit
Kumar, Rajesh
Virk, H S
Prasad, Rajendra |
| Keywords: | Polymethyl methacrylate polymer
C5+ Ion irradiation
Ion beam modification
FTIR
UV-Vis
X-ray diffraction |
| Issue Date: | May-2010 |
| Publisher: | CSIR |
| Abstract: | Polymethyl
methacrylate (PMMA) foils were irradiated under vacuum with 70 MeV C5+
ions to the fluences of 3.1×1011, 3.7×1012, 1.8×1013,
5.6×1013 and 1.2×1014 ions cm-2. Ion induced optical,
chemical and structural modifications were studied by ultraviolet, visible
(UV-Vis) and Fourier Transform Infrared (FTIR) spectroscopy and X-ray
diffractometer (XRD). PMMA suffers degradation under irradiation, UV-Vis data
show the increase of optical absorbance and the shift of absorption edge from
the UV towards visible with the increase of the fluences, attributing to the
formation of conjugated system of bonds. The intensity of infrared bands and characteristics
of different chemical functional groups are found to decrease with Swift Heavy
Ion (SHI). Crystallite size of irradiated sample shows a decrease of 8% |
| Page(s): | 321-325 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.48(05) [May 2010]
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