134 research outputs found
The Osmotic Coefficient of Rod-like Polyelectrolytes: Computer Simulation, Analytical Theory, and Experiment
The osmotic coefficient of solutions of rod-like polyelectrolytes is
considered by comparing current theoretical treatments and simulations to
recent experimental data. The discussion is restricted to the case of
monovalent counterions and dilute, salt-free solutions. The classical
Poisson-Boltzmann solution of the cell model correctly predicts a strong
decrease in the osmotic coefficient, but upon closer look systematically
overestimates its value. The contribution of ion-ion-correlations are
quantitatively studied by MD simulations and the recently proposed DHHC theory.
However, our comparison with experimental data obtained on synthetic,
stiff-chain polyelectrolytes shows that correlation effects can only partly
explain the discrepancy. A quantitative understanding thus requires theoretical
efforts beyond the restricted primitive model of electrolytes.Comment: 16 pages, 2 figure
Coordination polymers from kinetically labile copper(I) and silver(I) complexes: true macromolecules or solution aggregates?
Synthesis, solution properties and conversion of poly(2,9-o-phenanthroline-alt-(2',5'-dihexyl)-4,4''-p-terphenylene) into soluble, well-defined copper(I) and silver(I) complex polymers
A first synthesis of soluble , well-defined coordination polymers from kinetically unstable copper(I) complexes
High-molecular-weight ruthenium(II) coordination polymers: synthesis and solution properties
Water-soluble cationic poly-p-phenylene polyelectrolytes with an exceptionally high charge density
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