Properties of hydroxypropylmethyl cellulose stabilized emulsion in the presence of sodium dodecylsulfate | Zendy

Verica Sovilj | Zendy; Jelena Saletic | Zendy; Lidija Petrović | Zendy; P. Dokić | Zendy

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Properties of hydroxypropylmethyl cellulose stabilized emulsion in the presence of sodium dodecylsulfate

Author(s) -

Verica Sovilj,

Jelena Saletic,

Lidija Petrović,

P. Dokić

Publication year - 2004

Publication title -

acta periodica technologica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.134

H-Index - 15

eISSN - 2406-095X

pISSN - 1450-7188

DOI - 10.2298/apt0435141s

Subject(s) - pulmonary surfactant , emulsion , molar mass , chemistry , rheology , chemical engineering , viscosity , coalescence (physics) , surface tension , chromatography , adsorption , polymer , organic chemistry , materials science , thermodynamics , composite material , biochemistry , physics , astrobiology , engineering

Many food, pharmaceutical, cosmetic and chemical products exist in the form of emulsions. A common problem with emulsions is their instability. One method of effective protection against coalescence of the particles is to raise the viscosity and lower surface tension by adding a polymer and low-molar-mass surfactant. Interaction between polymer and surfactant could change the adsorption layer around the oil droplets in emulsion which effects emulsion stability. In this paper, the influence of low-molar-mass anionic surfactant, sodium dodecylsulfate (SDS), on the properties of hydroxypropylmethyl cellulose (HPMC) stabilized emulsion, has been investigated. Changes of viscosity and rheological properties of emulsion caused by the HPMC-SDS interaction in continuous phase were measured and stability of emulsions was observed during two months of storage. Significant increase in viscosity and stability of the emulsions was found at SDS concentrations leading to HPMC-SDS interaction in the continuous phase. Stability of emulsions changed with time and was influenced by the HPMC-SDS interaction

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