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Use of polymeric and non‐polymeric surfactants in o/w emulsion formulation
Author(s) -
CARLOTTI M.E.,
PATTARINO F.,
GASCO M.R.,
CAVALLI R.
Publication year - 1995
Publication title -
international journal of cosmetic science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 62
eISSN - 1468-2494
pISSN - 0142-5463
DOI - 10.1111/j.1467-2494.1995.tb00105.x
Subject(s) - sorbitan , emulsion , thixotropy , polymer , acrylate , chemistry , pulmonary surfactant , chemical engineering , chromatography , polymer chemistry , organic chemistry , biochemistry , engineering , fatty acid , monomer , fatty acid ester
Summary An acrylic/alkyl acrylate co‐polymer and a mixture of non‐ionic surfactants (sorbitan monostearate and sorbitan monostearate(20)OE) were used to prepare o/w emulsions for cosmetic use. Formulations with optimal performances were obtained by selecting appropriate percentages of components through statistical procedures. The non‐polymeric surfactants were seen to affect the stability and appearance of the emulsion, although they were used at low percentages (0.3–0.6%), and were seen to interact with the polymer in different ways. The influence of twelve w/o emulsifiers (alcohol‐, glyceryl‐ and sorbitan‐derivatives) on the emulsion was examined and models of stability and thixotropic module were calculated: the thixotropic behaviour of the emulsion depended on the structural characteristics of hydrophilic and hydrophobic moieties of the w/o surfactant molecule.