Effect of microwave radiation on hydroxy propyl methyl cellulose polymer films and HPMC/poly(vinylpyrrolidone) polymer blend films using the wide-angle X-ray technique

Somashekarappa, H. and Prakash, Y. and Mahadevaiah and Demappa, T. and Somashekar, R. (2013) Effect of microwave radiation on hydroxy propyl methyl cellulose polymer films and HPMC/poly(vinylpyrrolidone) polymer blend films using the wide-angle X-ray technique. Radiation Effects and Defects in Solids, 168 (11-12). pp. 912-923.

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Abstract

The changes in the microstructural parameters of microwave-irradiated hydroxy propyl methyl cellulose (HPMC) and HPMC/PVP (poly(vinylpyrrolidone)) blend films have been studied using the Wide Angle X-Ray Scattering Technique (WAXS) method. The crystal imperfection parameters, such as lattice strain (g%), the average number of unit cells N counted in a direction perpendicular to Bragg's plane (hkl), spacing of (hkl planes dhkl, crystallite size Ds , distortion width, standard deviation, stacking faults, twin faults, were computed by the whole pattern fitting method. The obtained results were quantified in terms of the radiation dosage given to the samples. X-ray analysis reveals that there is a decrease in the crystallite size with the increase in the radiation dosage. Fourier transform Infra-Red (FTIR) analysis has been also carried out for both the unirradiated and irradiated films to study the effect of microwave radiation on HPMC and HPMC/PVP polymer blend films. The scanning electron microscope study is also carried out to know the surface morphology of these blend films.

Item Type: Article
Uncontrolled Keywords: WAXS; FTIR; crystallite size; SEM
Subjects: D Physical Science > Physics
M Polymer Science > Polymer Science
Divisions: Department of > Physics
PG Centre Mandya > Polymer Science
Yuvaraj college > Physics
Depositing User: Arshiya Kousar
Date Deposited: 13 Dec 2019 07:00
Last Modified: 13 Dec 2019 07:00
URI: http://eprints.uni-mysore.ac.in/id/eprint/10200

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