Comparative physical chemical study of isotactic and atactic poly(styrene sulphonic acid) solutions. Part 2.—Electrical conductance and transference measurements in salt-free aqueous solutions

Jordan, D. O.; Kurucsev, Tomas; Martin, M. L.

doi:10.1039/tf9696500606

Cited by 30 publications

(25 citation statements)

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“…Similar behaviour was found earlier for different monovalent salts of poly(styrene sulfonic acid) [11,14,[22][23] and poly(vinyl sulfonic acid) [24]. For PPP salts of a different degree of polymerization, both the equivalent conductivity at infinite dilution (A ~ and at defined concentration C (A c) diminishes with the increase of PPP molecular weight, although this effect is rather small.…”

Section: Resultssupporting

confidence: 77%

“…(1) and (2) has been interpreted by Wall et al [9] and by other authors [10][11][12][14][15][16][17][18] as the fraction of counter ions contributing to the conductance of the polyelectrolyte solution and called the "fraction of free counterions", the "polyion charge fraction" or the "transport parameter". According to Manning [13], F is related to the charge density parameter ~.…”

Section: Determination Of Polyion-counterion Interactions From Conducmentioning

confidence: 98%

“…Some authors [10][11][12] have used ;t ~ the infinite dilution value, instead of ;to, i. e. they have employed Eq. (2)…”

Section: Determination Of Polyion-counterion Interactions From Conducmentioning

confidence: 99%

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Electrolytic conductivity of poly(1,3-propylene phosphate) solutions containing mono- and divalent-counterions

Ostrowska-Czubenko

Wódzki

1988

Colloid & Polymer Sci

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Abstract:The results of conductivity measurements for aqueous solutions of poly(1,3-propylene phosphate) (PPP), which can be considered as a synthetic analogue of naturally occurring teichoic acids, are reported. Experiments were carried out with oligomeric fractions of a polymer in acidic, sodium, potassium, magnesium and calcium forms. The concentration and molecular weight dependence of the equivalent conductivity of PPP was analysed and the limiting equivalent conductivity determined. From the con= ductivity data, the polyion-counterion interaction parameter F and the equivalent conductivity of a polyion,~p were calculated. It was shown that both F and ~p depend on polyelectrolyte solution concentration and molecular weight of PPP. Conclusions concerning mono-and divalent metal ions binding to PPP are drawn.

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Section: Resultssupporting

confidence: 77%

Section: Determination Of Polyion-counterion Interactions From Conducmentioning

confidence: 98%

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Electrolytic conductivity of poly(1,3-propylene phosphate) solutions containing mono- and divalent-counterions

Ostrowska-Czubenko

Wódzki

1988

Colloid & Polymer Sci

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“…(To illustrate the problems of experimental accuracy involved, we give the detailed data in the Appendix.) In the following, we will suppose f l w = f?w (25) This choice implies that the electrophoretic retardation experienced by a counterion in the polyion's atmosphere is negligible, so that the lowering of counterion mobility is entirely due to ion condensation (short-range effect) and to the relaxation effect (atmospheric retardation).…”

Section: Counterion Hydrodynamic Friction Coefficientmentioning

confidence: 98%

“…(28) and (301, we can compute the polyelectrolyte stoichiometric equivalent conductance Aps, using also approximation (25) and Eq. (17): (33) Here, A; is the hypothetical effective conductance of the polyion when the relaxation field is neglected.…”

Section: Conductance Equationsmentioning

confidence: 99%

Relaxation and electrophoretic effects in polyelectrolyte solutions. I. Salt‐free solutions

1978

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SynopsisRelations between relaxation and electrophoretic effects in salt-free polyelectrolyte solutions are studied in terms of nonequilibrium thermodynamics and of binary friction coefficients. The significance and the method of determining these coefficients are explained. Consideration of experimental results and of long-and short-range interactions suggests that the concept of "ion condensation" is needed to provide a consistent description of transport processes for linear flexible polyelectrolytes. Empirical relations previously used are shown to have only limited validity.

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Electrical conductivity and counterion association of cationic polyacrylamide derivatives in aqueous solution

Liu

Jia

et al. 1999

Polym. Int.

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Equivalent electrical conductivity (Λ) is reported for three series of cationic quaternary ammonium polyacrylamide derivatives with $\hbox{MeSO}_{4}ˆ{‐}$, Cl−, Br− and I− as counterions at 25 °C, the polyion equivalent concentration C ranging from 5.3 × 10−4 to 6.4 × 10−3 N and from 1.0 × 10−3 to 1.4 × 10−2 N. Equivalent electrical conductivity increases with decreasing polyion equivalent concentration, and the sequence of equivalent electrical conductivity Λ of polyelectrolytes for the same series with different counterions in the range of concentration investigated is: $\hbox{MeSO}_{4}ˆ{‐} > \hbox{Cl}ˆ{‐} > \hbox{Br}ˆ{‐} > \hbox{I}ˆ{‐}$. The plots of the counterion–polyion interaction parameter f and degree of dissociation α of polyelectrolyte versus the polyion equivalent concentration C show that the order of counterion associating or binding to polyions for the same polyelectrolyte series in the range of concentration studied is $\hbox{MeSO}_{4}ˆ{‐} < \hbox{Cl}ˆ{‐} < \hbox{Br}ˆ{‐} < \hbox{I}ˆ{‐}$. The chemical structures of the polyion have much influence on the Λ, f and α values of the polyelectrolytes. © 1999 Society of Chemical Industry

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Comparative physical chemical study of isotactic and atactic poly(styrene sulphonic acid) solutions. Part 2.—Electrical conductance and transference measurements in salt-free aqueous solutions

Cited by 30 publications

References 0 publications

Electrolytic conductivity of poly(1,3-propylene phosphate) solutions containing mono- and divalent-counterions

Electrolytic conductivity of poly(1,3-propylene phosphate) solutions containing mono- and divalent-counterions

Relaxation and electrophoretic effects in polyelectrolyte solutions. I. Salt‐free solutions

Electrical conductivity and counterion association of cationic polyacrylamide derivatives in aqueous solution

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