A study of the effect of temperature on the micellar properties of a series of non-ionic detergents in aqueous solution

McDonald, Charles (1964) A study of the effect of temperature on the micellar properties of a series of non-ionic detergents in aqueous solution. MSc(R) thesis, University of Glasgow.

Abstract

The effect of temperature on the micellar properties, in aqueous solution, of three non-ionic detergents has been studied. The materials used were synthetic materials of the general formula CH3(CH2)15(OCH2CH2)nOH were n = 7, 8, and 9; the detergents were abbreviated to Hn7, Hn8 and Hn9. The thesis was divided into three parts. Part I: Introduction. A brief review of the general physico-chemical properties of non-ionic detergents in aqueous solution was given, dealing with micellar structure-critical micellar concentration and solubilisation together with a more detailed account of the effect of temperature on non-ionic detergents in solution. In the second section of the Introduction the theory of light-scattering was reviewed, together with the interpretation of viscosity results and second virial coefficients. Part II; Materials and Expermiental Methods. The purification of hexadecyl bromide and the purification and preparation of octaoxyethylene glycol (ng) and the detergent Hn8 were described. The light-scattering apparatus and vapour pressure apparatus were described, and their use outlined, together with the measurement of specific refractive index increment, viscosity, densities and cloud points. Part III: Results and Discussion. Micellar weights were determined at 15

• Item Type: Thesis (MSc(R))
• Qualification Level: Masters
• Additional Information: Adviser: P H Elworthy
• Keywords: Physical chemistry
• Date of Award: 1964
• Depositing User: Enlighten Team
• Unique ID: glathesis:1964-73351
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 14 Jun 2019 08:56
• Last Modified: 14 Jun 2019 08:56
• URI: https://theses.gla.ac.uk/id/eprint/73351