COLLOIDAL ANTIWEAR ADDITIVES .1. STRUCTURAL STUDY OF OVERBASED CALCIUM ALKYLBENZENE SULFONATE MICELLES

Authors
MANSOT JL HALLOUIS M MARTIN JM
Citation
Jl. Mansot et al., COLLOIDAL ANTIWEAR ADDITIVES .1. STRUCTURAL STUDY OF OVERBASED CALCIUM ALKYLBENZENE SULFONATE MICELLES, Colloids and surfaces. A, Physicochemical and engineering aspects, 71(2), 1993, pp. 123-134
Citations number
24
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
71
Issue
2
Year of publication
1993
Pages
123 - 134
Database
ISI
SICI code
0927-7757(1993)71:2<123:CAA.SS>2.0.ZU;2-K
Abstract
This paper presents some results on the morphology, chemical nature an d physical structure of overbased calcium alkylbenzene sulfonate rever se micelles in dispersion in hydrocarbons obtained using conventional (CTEM) and energy-filtered transmission electron microscopy (EFTEM) an d extended X-ray absorption fine structure spectroscopy (EXAFS). It wa s demonstrated that such colloidal particles are stable when they are brought out of their original medium and that they,can be accurately m odeled by a mineral core made up of amorphous calcium carbonate surrou nded by an organic shell of alkylbenzene sulfonyl radicals.