caa a22 4500 465764665 CHVBK 20180323111910.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF01126716 doi (NATIONALLICENCE)springer-10.1007/BF01126716 Rydzewski R. FB9-Physikalische Ingenieurwissenschaft, Technische Universität Berlin, D-1000, Berlin 12 aut Swelling and shrinking of a polyelectrolyte gel induced by a salt solution [Elektronische Daten] [R. Rydzewski] The stability of a polyelectrolyte gel in solution results from a delicate balance between several competing thermodynamic forces, viz. (i) osmotic pressure of free ions in the gel, (ii) molecular interaction of solvent and polymer molecules, (iii) network elasticity, (iv) Debye-Htickel interaction of ions. That balance may be upset by a decrease of temperature and by the addition of salt to the solvent. This results in a decrease of osmotic pressure and collapse of the gel to a small fraction of the initial volume. The effect can be reversed by increasing temperature and by removing salt from the solution. This paper presents an attempt to describe swelling and shrinking quantitatively and to understand the nature of the opposing forces. The volume of a particular polyacrylamide gel in a water acetone solution is represented as a function of the salt content and of temperature. Springer-Verlag, 1990 Continuum Mechanics and Thermodynamics Springer-Verlag 2/2(1990-05-01), 77-97 0935-1175 2:2<77 1990 2 161 https://doi.org/10.1007/BF01126716 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01126716 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Rydzewski R. FB9-Physikalische Ingenieurwissenschaft, Technische Universität Berlin, D-1000, Berlin 12 aut NATIONALLICENCE 773 0- Continuum Mechanics and Thermodynamics Springer-Verlag 2/2(1990-05-01), 77-97 0935-1175 2:2<77 1990 2 161 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer