Microstructural parameters of HPMC/PVP polymer blends using wide angle X-Ray technique

Prakash, Y. and Mahadevaiah and Somashekarappa, H. and Demappa, T. and Somashekar, R. (2012) Microstructural parameters of HPMC/PVP polymer blends using wide angle X-Ray technique. ournal of Research Updates in Polymer Science, 1 (1). pp. 24-31. ISSN 1929-5995

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Abstract

Hydroxypropylemethylecellulose (HPMC) and Polyvinylpyrrolidone (PVP) polymer virgin and blend films were prepared and investigated using wide angle X-ray scattering method. Microstructural parameters like lattice strain (g %), the crystallite size for individual the Bragg’s reflection (hkl) have been computed using line profile analysis and hence by whole pattern fitting method. The X-ray diffraction study reveals that the blending of PVP decreases the crystallanity of HPMC up to 5:4 concentration and then increases. Measured tensile strength decreases, Young’s Modulus decreases, and % elongation increases as the concentration of PVP increases. The surface morphology investigated using scanning electron microscope, shows that the two polymers were miscible in all concentration range.

Item Type:	Article
Subjects:	D Physical Science > Physics
Divisions:	Department of > Physics
Depositing User:	C Swapna Library Assistant
Date Deposited:	31 Aug 2019 09:41
Last Modified:	31 Aug 2019 09:41
URI:	http://eprints.uni-mysore.ac.in/id/eprint/7462

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