Ultrasonic relaxation spectra of agarose sols and gels
- 1 January 1978
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 74, 1246-1252
- https://doi.org/10.1039/f29787401246
Abstract
Ultrasonic relaxation has been observed in agarose gels. The variation of the relaxation spectra with polymer concentration and temperature indicates that the process being perturbed by the sound wave is associated with interactions in the junction zones or aggregates. These interactions are apparently dominated by entropy and volume changes. A comparison with the ultrasonic relaxation spectra of concentrated polymer solutions indicates a very similar behaviour.Keywords
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