Sol-gel transition of alginate solution by addition of calcium ions: alginate concentration dependence of gel point
- 1 January 1993
- journal article
- Published by EDP Sciences in Journal de Physique II
- Vol. 3 (1) , 1-7
- https://doi.org/10.1051/jp2:1993105
Abstract
Polyelectrolyte concentration dependence of gel point was experimentally investigated for alginate solution by addition of calcium ions. A power law relation was found between the gelation threshold fc and alginate concentration C with an exponent of -0.65±0.05. It was shown that the experimental results can be explained in terms of the scaling theories developed for vulcanization process and polyelectrolytes in semi-concentrated solutions. Based on the scaling analysis, a good agreement was obtained between the experimental and theoretical exponentsKeywords
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