Physical and chemical response of 70 MeV carbon ion irradiated Kapton-H polymer |
| |
Authors: | H S Virk P S Chandi A K Srivastava |
| |
Affiliation: | (1) Department of Physics, Guru Nanak Dev University, 143 005 Amritsar, India |
| |
Abstract: | Physical and chemical responses of 70 MeV carbon ion irradiated Kapton-H polymer were studied by using UV-visible, FTIR and
XRD techniques. The ion fluences ranging from 9.3 × 1011−9 × 1013 ions cm−2 were used. Recorded UV-visible spectra clearly showed a decrease in absorption initially with fluence, but for the higher
fluences it showed a recovery characteristic. A decrease in band-gap energy of 0.07 eV was observed. The FTIR analysis indicated
the high resistance to radiation induced degradation of polymer. The diffraction pattern of Kapton-H indicates that this polymer
is semi-crystalline in its nature. In case of irradiated one, there was an average increase of crystallite size by 20%, but
diffuse pattern indicates that there was a decrease in crystallinity, which may be attributed to the formation of complex
structure induced by the cross-linking of the polymeric chains. |
| |
Keywords: | Kapton-H polymer carbon ions radiation effects UV and FT-IR spectroscopy X-ray diffraction |
本文献已被 SpringerLink 等数据库收录! |