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The characterization of the semi-solid W/O/W emulsions with low concentrations of the primary polymeric emulsifier

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2005
Authors
Vasiljević, Dragana
Vuleta, Gordana
Primorac, Marija
Article (Published version)
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Abstract
Semi-solid multiple W/O/W emulsions with low concentrations (0.8, 1.6 and 2.4% w/w) of lipophilic polymeric primary emulsifier PEG-30- dipolyhydroxystearate (PDHS) have been formulated. Both emulsions, primary and multiple, were prepared with high content of inner phase (Φ = Φ2 = 0.8). All the formulations differ only in the lipophilic emulsifier concentration. Evaluating several parameters such as macroscopic and microscopic aspect, droplet size, accelerated stability under centrifugation and flow and oscillatory Theological behaviour, assessed the multiple systems. It is possible to formulate the semi-solid W/O/W multiple emulsions with low concentrations of PDHS as the primary emulsifler. It appeared that the highest long-term stable multiple emulsion with the lowest droplet size, the highest apparent viscosity and highest elastic characteristic, was the sample with the highest concentration (2.4% w/w) of the primary emulsifier.
Keywords:
Droplet size / Polymeric surfactant / Rheology / Stability / W/O/W multiple emulsions
Source:
International Journal of Cosmetic Science, 2005, 27, 2, 81-87

DOI: 10.1111/j.1467-2494.2004.00247.x

ISSN: 0142-5463

Scopus: 2-s2.0-15944391773
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17
URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/643
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Pharmacy

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