Electrophoretic behavior of ampholytic polymers and nanogels

Article Abstract:

Aqueous redox polymerization was used to synthesize polyampholyte gel particles with hydrodynamic radii [R(sub h)] 132 to 87 nm at an isoelectric point in the presence of sodium dodecylbenzene sulfonate as a surfactant. It was observed that the mobilities of the nanogels agree with those of the terpolymers, despite big difference in their size and in their molar masses.

Chemical synthesis

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Mechanisms of proton conductance in polymer electrolyte membranes

Article Abstract:

A comprehensive and systematic theoretical analysis of the proton conductance of polymer electrolyte membranes is presented. A model of heterogeneous membrane structure of non conducting hydrophobic polymer material and water-filled channels within which proton motion takes place is used for the this analysis.

Membranes (Biology)

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Friction of Gels. 7. Observation of static friction between like-charged gels

Article Abstract:

Two like-charged polyelectrolyte gels create an extensive static friction when they slide over each other in water. It is proved that the like-charged gel interface cannot slip with each other until the shear stress(strain) overcomes a criticality.

Chemistry, Physical and theoretical, Physical chemistry, Gels (Pharmacy)

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