Effect of stress on the free volume content of poly(chlorotrifluoroethylene)

Ramachandra, P. and Ramani, R. and Ramgopal, G. and Ranganathaiah, C. and Murthy, N.S. (1998) Effect of stress on the free volume content of poly(chlorotrifluoroethylene). Polymer, 39 (13). pp. 2987-2990.

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Official URL: https://doi.org/10.1016/S0032-3861(97)00622-8


The effect of stress (hydrostatic compression) on the free volume of poly(chlorotrifluoroethylene) has been investigated using the positron annihilation lifetime (PAL) technique in the pressure range of 0-14 kbar at room temperature. The variation of the annihilation parameters indicates that the free volume compression occurs at a higher pressure (>8 kbar) compared to molecular compression (4 kbar). The measured free volume size decreases from 95 to 73 Angstrom(3) under the influence of compression. The results also indicate a crystalline-amorphous transformation. The free volume compressibility (beta(f)) is found to be maximum around 9 kbar (10(-3) atm(-1)). (C) 1998 Elsevier Science Ltd. All rights reserved.

Item Type: Article
Subjects: D Physical Science > Physics
Divisions: Department of > Physics
Depositing User: Users 23 not found.
Date Deposited: 07 Jun 2021 04:52
Last Modified: 07 Jun 2021 04:52
URI: http://eprints.uni-mysore.ac.in/id/eprint/16714

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