Conformation of poly (ethylene oxide) in polymer-surfactant aggregates

Article Abstract:

The influence of sodium dodecyl sulfate on the conformation of poly (ethylene oxide) (PEO) in water is analyzed using viscosity measurements and small-angle neutron scattering. The behavior as a function of surfactant concentration above the critical aggregation concentration, can be described as an initial regime, in which micelles are attached to the coils but are noninteracting and a second regime, in which there is interaction between the attached micelles, where the cloud point of PEO in water exhibits a minimum as a function of surfactant concentration.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Sodium Sulfate, Sodium Sulfates, Micelles, Properties

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Interactions of nanosized Al(sub 2)O(sub 3) and ZnO with poly(ethylene oxide)-NaSCN polymer electrolytes

Article Abstract:

The effect of nanosized Al(sub 2)O(sub 3) fillers on the interactions in poly(ethylene oxide) [PEO]-NaSCN polymer electrolytes is studied. The hard Lewis acid centers on the surface of Al(sub 2)O(sub 3) exhibit strong interactions with ether oxygens in PEO, even with ether oxygens that coordinated to Na(super +) and the modes of the interaction of Al(sub 2)O(sub 3) with PEO-NaSCN electrolytes are dependent on the salt content.

China, Spectra, Zinc oxide

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From colloidal aggregates to layered manosized structures in polymer-surfactant systems. 1. basic phenomena

Article Abstract:

The rich crystallization behavior that occurs in Pb(super II)/S(super II)/poly(ethylene oxide) (PEO)/sodium dodecyl sulfate (SDS) systems is examined. The findings illustrate the complexity of colloidal aggregation phenomena in polymer-surfactant and the significance of coupling colloidal aggregation to ionic equilibria.

Polymers

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