Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution
We present a general description of conductivity behavior of highly charged strong polyelectrolytes in dilute aqueous solutions taking into account the translational dielectric friction on the moving polyions modeled as chains of charged spheres successively bounded and surrounded by solvent molecul...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/852752 |
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| author | Anis Ghazouani Sondes Boughammoura Jalel M'Halla |
| author_facet | Anis Ghazouani Sondes Boughammoura Jalel M'Halla |
| author_sort | Anis Ghazouani |
| collection | DOAJ |
| description | We present a general description of conductivity behavior of highly charged strong polyelectrolytes in dilute aqueous solutions taking into account the translational dielectric friction on the moving polyions modeled as chains of charged spheres successively bounded and surrounded by solvent molecules. A general formal limiting expression of the equivalent conductivity of these polyelectrolytes is presented in order to distinguish between two concentration regimes and to evaluate the relative interdependence between the ionic condensation effect and the dielectric friction effect, in the range of very dilute solutions for which the stretched conformation is favored. This approach is illustrated by the limiting behaviors of three polyelectrolytes (sodium heparinate, sodium chondroitin sulfate, and sodium polystyrene sulphonate) characterized by different chain lengths and by different discontinuous charge distributions. |
| format | Article |
| id | doaj-art-3d43cb0bfc1747539cd91bdf319bbf29 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-3d43cb0bfc1747539cd91bdf319bbf292025-02-03T05:46:46ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/852752852752Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High DilutionAnis Ghazouani0Sondes Boughammoura1Jalel M'Halla2Faculty of Sciences of Monastir, UR “Electrolytes”, University of Monastir, 5000 Monastir, TunisiaFaculty of Sciences of Monastir, UR “Electrolytes”, University of Monastir, 5000 Monastir, TunisiaFaculty of Sciences of Monastir, UR “Electrolytes”, University of Monastir, 5000 Monastir, TunisiaWe present a general description of conductivity behavior of highly charged strong polyelectrolytes in dilute aqueous solutions taking into account the translational dielectric friction on the moving polyions modeled as chains of charged spheres successively bounded and surrounded by solvent molecules. A general formal limiting expression of the equivalent conductivity of these polyelectrolytes is presented in order to distinguish between two concentration regimes and to evaluate the relative interdependence between the ionic condensation effect and the dielectric friction effect, in the range of very dilute solutions for which the stretched conformation is favored. This approach is illustrated by the limiting behaviors of three polyelectrolytes (sodium heparinate, sodium chondroitin sulfate, and sodium polystyrene sulphonate) characterized by different chain lengths and by different discontinuous charge distributions.http://dx.doi.org/10.1155/2013/852752 |
| spellingShingle | Anis Ghazouani Sondes Boughammoura Jalel M'Halla Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution Journal of Chemistry |
| title | Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution |
| title_full | Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution |
| title_fullStr | Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution |
| title_full_unstemmed | Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution |
| title_short | Studies of Electrolytic Conductivity of Some Polyelectrolyte Solutions: Importance of the Dielectric Friction Effect at High Dilution |
| title_sort | studies of electrolytic conductivity of some polyelectrolyte solutions importance of the dielectric friction effect at high dilution |
| url | http://dx.doi.org/10.1155/2013/852752 |
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