๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Micellar catalysis by perfluorooctanoic acid

โœ Scribed by D. C. Berndt; M. E. Ayoub; M. H. Akhavan-Tafti

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
274 KB
Volume
19
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

โœฆ Synopsis

Rates of acidic hydrolysis of hexano-, octano-, and decanohydroxamic acids and of 4-bromophenylaceto-and phenylacetohydroxamic acids have been determined in aqueous perfluorooctanoic acida reactive counterion surfactant system. Typical micellar catalysis was observed for the hydrolyses of the n-alkyl hydroxamic acids but not for the arylacetohydroxamic acids. The Arrhenius activation energy for hydrolysis of octanohydroxamic acid is smaller above the cmc of the surfactant than it is below the cmc. 738798 (1979).

91,

๐Ÿ“œ SIMILAR VOLUMES

Micellar kinetics in aqueous acetonitril
Micellar kinetics in aqueous acetonitrile. Part A. Sodium-hydrogen ion-exchange constant for 1-dodecanesulfonate surfactant. Part B. Substrate structural effects for micellar catalysis by perfluorooctanoic acid as reactive counterion surfactant
โœ D.C. Berndt; M.G. Pamment; A.C.M. Fernando; X. Zhang; W.R. Horton ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 148 KB

The sodium-hydrogen ion exchange constant for the system sodium 1-dodecanesulfonate-hydrochloric acid in aqueous acetonitrile has been determined from the pseudo-phase ion exchange model for surfactant catalytic effects. The results indicate that the micellar system behaves similarly for the aqueous

Substrate structural effects in micellar
Substrate structural effects in micellar catalysis with perfluorooctanoic acid
โœ D. C. Berndt; Z. He; M. E. Ayoub ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 305 KB

Rates of hydrolysis of a series of hydroxamic acids in aqueous acetonitrile, with perfluorooctanoic acid serving as a reactive counterion surfactant, have been determined. The pseudophase ion exchange model satisfactorily explains the surfactant effects. Variation in the structure of the hydrophobic

SelectiveN-Alkylation of Aniline by Mice
SelectiveN-Alkylation of Aniline by Micellar Catalysis
โœ Cincin Siswanto; James F. Rathman ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 99 KB

over liquid-phase reactions since the catalyst can be more Reactions of aniline with 1-bromobutane to form N-butylaniline easily recovered for recycle or disposal. Catalysts that have and N,N-dibutylaniline were performed in single-phase aqueous been studied include oxides, supported oxides, zeolite