Temperature invariance ofS
0-parameter of polymers |
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| Authors: | B K Sharma R R Reddy |
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| Institution: | (1) Department of Physics, Regional College of Education, 751 007 Bhubaneswar, India;(2) Department of Physics, S K University, 515 003 Anantpur, India;(3) Present address: Physics Group, DMES & DP, National Council of Educational Research and Training, 110 016 New Delhi, India |
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| Abstract: | The parameterS
0 which is characteristic of molten alkali halides and liquids has also been shown to be characteristic of a wide variety of
polymers. Calculated data using the volume expansivity of the polymer establish the temperature invariance and constancy of
theS
0-parameter which retains, on an average, a constant value of 1.11 for polymers. Further understanding of the significance
of fractional free volume andS
0-parameter in describing various thermoacoustic properties and the anharmonic behaviour in polymers, has been developed. |
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| Keywords: | Polymer S 0-parameter volume expansivity heat capacity Grüneisen parameter fractional free volume |
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