Reactivity control in micelles and surfactant vesicles. Kinetics and mechanism of base-catalyzed hydrolysis of 5,5'-dithiobis(2-nitrobenzoic acid) in water, hexadecyltrimethylammonium bromide micelles, and dioctadecyldimethylammonium chloride surfactant vesicles

Journal Article · Wed Sep 09 00:00:00 EDT 1981 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00408a027· OSTI ID:5964258

Fendler, J H; Hinze, W L

Rate constants have been determined for the hydrolysis of 5,5'-dithiobis(2-nitrobenzoic acid) (DTNB) as functions of hydroxide ion concentrations in water, micellar hexadecyltrimethylammonium bromide (CTAB), and dioctacecyldimethylammonium chloride (DODAC) surfactant vesicles. The observed second-order rate constants at 26.4 C in micellar CTAB (8.4 m/sup -1/ sec/sup -1/) are /Ca. 15- and 1500-fold larger than that in water (0.54 m/sup -1/ sec/sup -1/). The rate-concentration profiles in both surfactant systems fit the pseudophase-type models of micellar catalysis. Kinetic treatments derived from micellar catalysis also are applicable to surfactant vesicles. 88 references.

• OSTI ID: 5964258
• Journal Information: J. Am. Chem. Soc.; (United States), Vol. 103:18
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DISPLACEMENT FLUIDS
HYDROLYSIS
SURFACTANTS
AMMONIUM CHLORIDES
AMMONIUM HALIDES
BENZOIC ACID
BROMIDES
CATALYSIS
CHEMICAL REACTION KINETICS
MICELLAR SYSTEMS
QUANTITY RATIO
AMMONIUM COMPOUNDS
BROMINE COMPOUNDS
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
DECOMPOSITION
FLUIDS
HALIDES
HALOGEN COMPOUNDS
KINETICS
LYSIS
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
REACTION KINETICS
SOLVOLYSIS
020300* - Petroleum- Drilling & Production