About: Collective polyelectrolyte diffusion as a function of counterion size and dielectric constant

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report studies of the effect of counterions on the properties of solutions of a strong polyelectrolyte for a wide range of solvent dielectric constant. For this purpose we investigated the dynamic properties of polystyrene sulfonate in N-methylformamide whose dielectric constant changes significantly with temperature. By means of dynamic light scattering and NMR spectroscopy, polymers of different molecular weights and various counterions were investigated, including large phosphazene counterions P1, P2 and P4 measured for the first time. It was found that the order of counterion binding of ionomers in the solvent changed with an increase of dielectric constant. The order for low dielectric constant (high temperature) was Na < Rb < Cs < P1 < P2 < P4, whereas for a solvent with high dielectric constant no influence of counterion nature was observed. The solvation–desolvation effect together with electrostatic interactions are responsible for the observed phenomenon. We report studies of the effect of counterions on the properties of solutions of a strong polyelectrolyte for a wide range of solvent dielectric constant. For this purpose we investigated the dynamic properties of polystyrene sulfonate in N-methylformamide whose dielectric constant changes significantly with temperature. By means of dynamic light scattering and NMR spectroscopy, polymers of different molecular weights and various counterions were investigated, including large phosphazene counterions P1, P2 and P4 measured for the first time. It was found that the order of counterion binding of ionomers in the solvent changed with an increase of dielectric constant. The order for low dielectric constant (high temperature) was Na < Rb < Cs < P1 < P2 < P4, whereas for a solvent with high dielectric constant no influence of counterion nature was observed. The solvation–desolvation effect together with electrostatic interactions are responsible for the observed phenomenon. (en)
Title	Collective polyelectrolyte diffusion as a function of counterion size and dielectric constant Collective polyelectrolyte diffusion as a function of counterion size and dielectric constant (en)
skos:prefLabel	Collective polyelectrolyte diffusion as a function of counterion size and dielectric constant Collective polyelectrolyte diffusion as a function of counterion size and dielectric constant (en)
skos:notation	RIV/61389013:_____/13:00394493!RIV14-MSM-61389013
http://linked.open...avai/predkladatel	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ME09059), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Štěpánek, Petr Kříž, Jaroslav Černoch, Peter Pánek, Jiří Hrubý, Martin Kadlec, Petr Sedláček, Ondřej Filippov, Sergey
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	65929
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/13:00394493
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	polyelectrolyte; counterion binding; sodium polystyrene sulfonate (en)
http://linked.open.../riv/klicoveSlovo	polyelectrolyte sodium polystyrene sulfonate counterion binding
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[70234C4A4121]
http://linked.open...i/riv/nazevZdroje	Polymer International
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	8 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...vavai/riv/projekt	Polyelectrolyte behaviour in solvents with widely variable dielectric constant
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	62
http://linked.open...iv/tvurceVysledku	Filippov, Sergey Hrubý, Martin Kadlec, Petr Kříž, Jaroslav Pánek, Jiří Seery, T. A. P. Černoch, Peter Štěpánek, Petr Sedláček, Ondřej
http://linked.open...ain/vavai/riv/wos	000322580300002
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
issn	0959-8103
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/pi.4410

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