Mixtures of cationic polyelectrolyte and anionic surfactant studied with small-angle neutron scattering

Article Abstract:

Investigators employed small-angle neutron scattering (SANS) to probe the structures of a semidilute polyelectrolyte solution of a highly charged cationic polyelectrolyte. The scattering data for semidilute surfactant-free poly-{2-(propionyloxy)ethyl}trimethylammonium chloride, PCMA solutions in D2O show a broad peak corresponding to a relatively large characteristic distance describing the mesh size.

Science & research, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Polyelectrolytes, Neutrons, Neutron scattering

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A small-angle neutron scattering (SANS) study of tablet-shaped and ribbonlike micelles formed from mixtures of an anionic and a cationic surfactant

Article Abstract:

The growth of micelles as their surfactant composition approaches 0.5 can be explained as an effect of reducing surface charge density of the micelles as a rising amount of the charges are cancelled when pairs of an anionic and a cationic surfactant are aggregated and the corresponding counterions enter the surrounding bulk solution.

Polymerization, Micelles, Addition polymerization

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A small-angle neutron scattering study of surfactant aggregates formed in aqueous mixtures of sodium dodecyl sulfate and didodecyldimethylammonium bromide

Article Abstract:

A new study uses small-angle neutron scattering to investigate the structure of surfactant aggregates formed in aqueous mixtures of sodium dodecyl sulfate and didocecyldimethylammonium bromide.

Chemistry, Physical and theoretical, Physical chemistry

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