Effects of aminoacids on the autooxidation of 3,5-di-tert-butylcatechol in the presence of surface-active copper(II) complexes

Y Y Lim; L P Liew

doi:10.1006/jcis.2002.8619

Effects of aminoacids on the autooxidation of 3,5-di-tert-butylcatechol in the presence of surface-active copper(II) complexes

J Colloid Interface Sci. 2002 Nov 15;255(2):425-7. doi: 10.1006/jcis.2002.8619.

Authors

Y Y Lim¹, L P Liew

Affiliation

¹ School of Engineering and Science, Monash University (Malaysia), 2 Jalan Kolej, Bandar Sunway, 46150 Petaling Jaya, Malaysia. lim.yau.yan@engsci.monash.edu.my

PMID: 12505092
DOI: 10.1006/jcis.2002.8619

Abstract

The rate of autooxidation of 3,5-di-tert-butylcatechol (3,5-DTBC) in the presence of micelles formed from mixing equal concentrations of [Cu(C(12)-tmed)Br(2)] (where C(12)-tmed is N,N,N'-trimethyl-N'-dodecylethylenediamine) and several amino acids has been investigated. It was found that the rate in air-saturated solution is very much dependent on pH, which affects the availability of copper(II) coordination site for the catechol and the degree of micellization. At a given pH, the rates in [Cu(C(12)-tmed)Br(2)] micellar media are greatly enhanced in the presence sodium halide.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Amino Acids / chemistry*
Catechols / chemistry*
Copper*
Hydrogen-Ion Concentration
Kinetics
Oxidation-Reduction
Surface-Active Agents*

Substances

Amino Acids
Catechols
Surface-Active Agents
3,5-di-tert-butylcatechol
Copper