PARTITIONING OF ETHOXYLATED ALKYLPHENOL SURFACTANTS IN MICROEMULSION-OIL-WATER SYSTEMS

Authors
MARQUEZ N ANTON R GRACIAA A LACHAISE J SALAGER JL
Citation
N. Marquez et al., PARTITIONING OF ETHOXYLATED ALKYLPHENOL SURFACTANTS IN MICROEMULSION-OIL-WATER SYSTEMS, Colloids and surfaces. A, Physicochemical and engineering aspects, 100, 1995, pp. 225-231
Citations number
32
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
100
Year of publication
1995
Pages
225 - 231
Database
ISI
SICI code
0927-7757(1995)100:<225:POEASI>2.0.ZU;2-5
Abstract
Ethoxylated alkyl phenol oligomer partitioning between the microemulsi on-water-oil (heptane) phases of a Winsor III system is determined by high performance liquid chromatography for systems containing octyl, n onyl, decyl, dodecyl and dinonyl phenol species. The partition coeffic ient between the water and oil phases obeys a simple law depending upo n the alkyl chain length and the number of ethylene oxide groups per o ligomer molecule. The results allow estimation of the energy of transf er of an ethylene oxide group and of a methylene group from oil to wat er.