Critical Behavior of Density Fluctuations in Gels
- 4 April 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 38 (14) , 771-774
- https://doi.org/10.1103/physrevlett.38.771
Abstract
The temperature dependence of the intensity and of the correlation time of laser light scattered by the network density fluctuations in polyacrylamide gels is reported. The density fluctuations show critical behavior at - 17°C. This behavior is quantitatively explained as a phase transition of a binary mixture of the covalently cross-linked polymer network and the fluid medium.Keywords
This publication has 3 references indexed in Scilit:
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- Spectrum of light scattered from a viscoelastic gelThe Journal of Chemical Physics, 1973
- Diffusion Coefficient of the Isobutyric-Acid-Water System in the Critical RegionPhysical Review Letters, 1968