Aqueous Solution Properties of Polyelectrolytes
نویسندگان
چکیده
منابع مشابه
Solution Properties of Some Cationic Polyelectrolytes
The solution properties of some cationic polyelectrolytes with ammonium quaternary centers either attached to an acrylic macromolecular chain (polycation PDMAEMQ type) or in the backbone (polycation PCA type) have been measured in order to identify how charge density, polyelectrolyte concentration, solvent polarity as well as temperature influence their behavior in solution by viscometric, cond...
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We have performed Molecular Dynamics simulations of ectoine, hydroxyectoine and urea in explicit solvent. Special attention has been spent on the local surrounding structure of water molecules. Our results indicate that ectoine and hydroxyectoine are able to accumulate more water molecules than urea by a pronounced ordering due to hydrogen bonds. We have validated that the charging of the molec...
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We review recent experiments on the interaction of proteins with anionic polyelectrolytes in aqueous solution. Data from the literature demonstrate that proteins can form soluble complexes with linear polyelectrolytes even on the "wrong side" of the isoelectric point, that is, for pH values above the isoelectric point of the proteins under which the polyelectrolytes and the proteins are like-ch...
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In the context of a continuum model, the excess electrostatic free energy, F,,, of helical charge distributions has been obtained. .More specifically, we calculate F,,, of cy, DNA-like, and infinite pitch helical lines of charge embedded on the surface of a low dielectric cylinder. The deviation of F,,, from the uniformly charged cylinder value is evaluated as a function of screening length. Th...
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This chapter deals with charged polymers (polyelectrolytes) in solution and at surfaces. The behavior of polyelectrolytes is markedly different from that of neutral polymers. In bulk solutions, i.e. disregarding the surface effect, there are two unique features to charged polymers: first, due to the presence of long-ranged electrostatic repulsion between charged monomers, the polymer conformati...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 2004
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.53.716