| Issue |
J. Phys. II France
Volume 3, Number 1, January 1993
|
|
|---|---|---|
| Page(s) | 1 - 7 | |
| DOI | https://doi.org/10.1051/jp2:1993105 | |
DOI: 10.1051/jp2:1993105
J. Phys. II France 3 (1993) 1-7
Departement of Molecular Chemistry and Enginnering, Faculty of Engineering, Tohoku University, Aramaki Aoba, Aoba-ku Sendai 980, Japan
61.25-82.70-87.15
© Les Editions de Physique 1993
J. Phys. II France 3 (1993) 1-7
Sol-gel transition of alginate solution by addition of calcium ions: alginate concentration dependence of gel point
Zheng-Yu Wang, Quinz-Zhi Zhang, Mikio Konno and Shozaburo SaitoDepartement of Molecular Chemistry and Enginnering, Faculty of Engineering, Tohoku University, Aramaki Aoba, Aoba-ku Sendai 980, Japan
(Received 15 September 1992, revised 17 November 1992, accepted 25 November 1992)
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
and alginate concentration
C with an exponent of
. 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 exponents.
61.25-82.70-87.15
© Les Editions de Physique 1993