𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Tracer diffusion of zwitterionic and ionic mixed micelles. Effect of micellar size and charge

✍ Scribed by Toshihiro Tominaga; Tomoyo Nakamura

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
282 KB
Volume
73-74
Category
Article
ISSN
0167-7322

No coin nor oath required. For personal study only.

✦ Synopsis

Difision

coefficients of pyrene solubilized in mixed micelles of 3-(N-tetradecyl-N,Ndimethylammonio)propanesulfonate (C&APS) and sodium octadecanesulfonate (CrsSOjNa) or sodium decanesulfonate (CroSOaNa) have been measured in aqueous NaBr solutions at 298.2 K. The diffusion coefftcients decrease with increasing molar ratio of CuSOxNa or CroSOsNa to C&APS.

The diffusion coefficients for the mixed micelles are lower in water than in salt solutions.

The results are interpreted in terms of the size and charge of the mixed micelles.

πŸ“œ SIMILAR VOLUMES

Micellar medium effects on the hydrolysi
Micellar medium effects on the hydrolysis of phenyl chloroformate in ionic, zwitterionic, nonionic, and mixed micellar solutions
✍ MarΓ­a MuΓ±oz; Amalia RodrΓ­guez; MarΓ­a Del Mar Graciani; MarΓ­a Luisa MoyΓ‘ πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 139 KB πŸ‘ 1 views

## Abstract The spontaneous hydrolysis of phenyl chloroformate was studied in various anionic, nonionic, zwitterionic, and cationic aqueous micellar solutions, as well as in mixed anionic–nonionic micellar solutions. In all cases, an increase in the surfactant concentration results in a decrease in