Aggregate transition from nanodisks to equilibrium among vesicles and disks

Article Abstract:

A dilute, salt-free cationic/anionic/nonionic surfactant system was prepared. The aggregate transition from nanodisks to the coexistence of disks and unilamellar vesicles to the equilibrium among disks, unilamellar vesicles, and multilamellar vesicles with polydisperse size distributions was observed by freeze-fracture transmission electron microscopy in the dilute, salt-free cationic/anionic/nonionic surfactant mixtures.

Nonionic Surfactants, Anionic Surfactants

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Tailorable polyelectrolyte complexes using cyclodextrin polymers

Article Abstract:

Association of a beta-cyclodextrin polymer, a cationic surfactant, and an anionic polymer leads to ternary complexes involving both inclusion complexes and electrostatic interactions. For fixed concentrations of polymers namely, sodium polystyrene sulfonate and sodium dextran sulfate, the structural properties of the ternary complexes is studied as a function of the cationic surfactant concentration in the bulk solution.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Polyelectrolytes, Cyclodextrins

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Formation and characterization of the pi-radical cation and dication of pi-extended tetrathiafulvalene materials

Article Abstract:

The time-resolved and steady-state radiation chemical techniques are used to generate the pi-radical cation and the dication species of a series of quinonoid pi-extended tetrathiafulvalenes. Transitions are observed in all the generated dication that are significantly shifted to the blue relative to the pi-radical cation intermediates and are dominated by the polyacenic unit.

Radiation chemistry

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