CHEMILUMINESCENCE IN MICROEMULSIONS - EFFECT OF PHASE-COMPOSITION

Citation
S. Cohen et S. Magdassi, CHEMILUMINESCENCE IN MICROEMULSIONS - EFFECT OF PHASE-COMPOSITION, Langmuir, 12(16), 1996, pp. 3759-3762
Citations number
14
Categorie Soggetti
Chemistry Physical
Journal title
ISSN journal
07437463
Volume
12
Issue
16
Year of publication
1996
Pages
3759 - 3762
Database
ISI
SICI code
0743-7463(1996)12:16<3759:CIM-EO>2.0.ZU;2-Q
Abstract
Chemiluminescence (CL) reactions were studied in a model system based on a phase diagram which was composed of Triton X-100, a-butanol, tolu ene, and water. The CL reaction was achieved by using trichlorophenyl oxalate, H2O2, and perylene as the fluorophore. The intensity of light (l(0)) and t(1/2) were found to depend on both reactant concentration s and phase composition. The CL reaction was conducted in W/O microemu lsions, and an inverse relation between I-0 and t(1/2) was found. Thes e two parameters could also indicate the transition from a W/O emulsio n to a W/O microemulsion. The effect of medium polarity was evaluated by fluorescence, absorbance, and chemiluminescence spectra.