Biology Faculty Research

Title

The Influence of Lamellar Liquid Crystalline Media in the Hydrolysis of 4-Substituted Benzylidene t-Butylamine N-Oxides

Document Type

Article

Publication Date

Fall 1983

Abstract

Cationic lamellar liquid crystalline morphologies decrease the rate of hydrolysis of a series of 4-substituted benzylidene t-butylamine N-oxides compared to aqueous solutions. Rate constants for the aqueous acid hydrolysis decrease as the electron releasing effect increases and they are linear when plotted against σ+-substituent constants. Rho-values indicate a less sensitive reactivity series than the benzoic acids and a more sensitive reactivity in lamellar solvents. Reaction rates for the series in the latter solvent parallel the hydrophobic substituent constants. Three different lamellar morphologies were identified in the aqueous surfactant systems.

Publication Title

Molecular Crystals and Liquid Crystals

Volume

90

Issue

3,4

First Page

307

Last Page

321

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