Ramani, R. and Raganathaiah, C. (1997) Effect of iodine sorption on the free volume of polycarbonate. Applied Physics A-Materials Science & Processing, 64 (2). pp. 161-165.
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Abstract
The effect of iodine sorption on the free volume of polycarbonate is investigated by Positron Annihilation Lifetime method. The observed results are interpreted in terms of the Charge Transfer Complex formation and precipitation of iodine at the initial and final stages of sorption, respectively. At higher levels of sorption, changes in the second lifetime and its intensity seem to suggest a conformational transformation, probably due to the net change in the amorphous-crystalline boundary regions of the polymer matrix. The free volume cavities have been predominantly occupied by I-3(-) species and the diffusion process obeys Fick's law. An exponential type correlation has been observed between fractional free volume and the diffusion coefficient.
| Item Type: | Article |
|---|---|
| Subjects: | D Physical Science > Physics |
| Divisions: | Department of > Physics |
| Depositing User: | Users 23 not found. |
| Date Deposited: | 28 May 2021 07:24 |
| Last Modified: | 28 May 2021 07:24 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/16639 |
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