Shape investigations of charged block copolymer micelles on chemically different surfaces by atomic force microscopy

Article Abstract:

A dynamic scanning force microscopy study was conducted to investigate shape transitions of poly(ethylene-b-sulfonic acid) micelles that were formed at different ionic strength. Shape transitions from spherical micelles to network-like structures occurred when the ionic strength in the applied solution was changed. An examination of the adsorption behavior of the structures on different chemical surfaces revealed that the chemical modification of the surface strongly influenced the adsorption structures of the micellar aggregates on a substrate.

Micelles, Block copolymers

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Adsorption of the lamellar phase of Aerosol-OT at the solid/liquid and air/liquid interfaces

Article Abstract:

It has been possible to measure the lamellar spacing in solutions of di-2-ethylhexylsodium sulfosuccinate as a function of temperature and concentration. Neutron reflection was used to follow adsorption of the lamellar phase under parallel conditions at the solid (silica)/water and air/water interfaces.

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