Counterion condensation in poly(1,1.dimethyl-3,5-dimethylene piperidinium) salts in methanol/water solutions
Author
dc.contributor.author
Barraza, Raul G.
Author
dc.contributor.author
Diaz, Mario R.
Author
dc.contributor.author
Rios, Hernan E.
Admission date
dc.date.accessioned
2018-12-20T14:35:48Z
Available date
dc.date.available
2018-12-20T14:35:48Z
Publication date
dc.date.issued
1998
Cita de ítem
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Boletin de la Sociedad Chilena de Quimica, Volumen 43, Issue 2, 2018, Pages 139-145
Identifier
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03661644
Identifier
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https://repositorio.uchile.cl/handle/2250/156589
Abstract
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Counterion condensation to poly(1,1-dimethyl-3,5-dimethylene piperidinium) through the behavior of the relative conductimetric interaction parameter f* in methanol/water solutions is analyzed. The trend of this parameter is coherent with the behavior of the limiting equivalent conductivity. Chromatographic results of preferential adsorption show that this phenomenon is practically absent. In this system the behavior of f* basically depends on the absolute viscosity and the dielectric constant of the media. Consequently, f* does not show the maximum at low methanol content in the solvent mixture, as observed in polymers which contain functional groups. Measurements of intrinsic viscosity of these solutions support these results.