Affiliation:
1. Department of Pharmaceutical Technology, School of Pharmacy, Porstmouth College of Technology, Portsmouth, England
Abstract
Abstract
Mixtures of emulsifiers of the surfactant-fatty alcohol type are widely used to stabilize oil-in-water emulsions and to alter their consistency from fluid to semi-solid. A mechanism, involving the formation of a viscoelastic network in the continuous phase, is proposed to explain this self-bodying action. Evidence has been adduced from published data on a variety of systems. Support for this concept is also provided by the results obtained from a concentric cylinder study of the rheology of liquid paraffin in water emulsions containing a fixed concentration of cetostearyl alcohol and varying amounts of polyoxyethylene sorbitan monooleate, cetomacrogol 1000, sodium dodecyl sulphate or cetrimide.
Publisher
Oxford University Press (OUP)
Subject
Pharmaceutical Science,Pharmacology
Cited by
28 articles.
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