Site-specific perspective on interactions in polyelectrolyte complexes: Toward quantitative understanding
The composition and properties of hydrated polyelectrolyte complexes, PECs, depend strongly on the salt concentration of solutions in which they are immersed. This fascinating and polyelectrolyte-specific behavior is often treated with extensions of theory developed for single-component polyelectrol...
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| Published in: | The Journal of chemical physics 2018-10, Vol.149 (16), p.163314-163314 |
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| Main Author: | |
| Format: | Article |
| Language: | eng |
| Subjects: | |
| Online Access: | Get full text |
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| Summary: | The composition and properties of hydrated polyelectrolyte complexes, PECs, depend strongly on the salt concentration of solutions in which they are immersed. This fascinating and polyelectrolyte-specific behavior is often treated with extensions of theory developed for single-component polyelectrolyte solutions. As an alternative, the response of PECs to salt (i.e., small ions) may be treated as a competition between the pairing of positive, Pol+, and negative, Pol−, repeat units and their salt counterions. Simple equilibrium expressions provide the degree of reversible Pol+Pol− pair breaking as more salt is added. This work summarizes the site-specific ion pairing view of PECs. |
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| ISSN: | 0021-9606 1089-7690 |