Abstract
As part of a study polyoxyethylene alkyl ethers (C m EO n ), water and decane, the phase diagram and the structures of the mesophases of pure C12EO6 and technical grade C12EO〈7〉 were compared. The constructed phase diagrams of the two systems show a great resemblance except for one difference: the viscous isotropic phase is only present in the C12EO6 phase diagram.
The swelling behavior of the lamellar and hexagonal phases was studied with smallangle x-ray scattering. Both the lamellar and hexagonal phases showed an ideal swelling behavior and no differences between the lamellar and hexagonal phases of the two systems were detected.
With freeze-fracture electron microscopy the hexagonal and lamellar phases were visualized. No differences in the textures of the lamellar phases were found, however, the micrographs of the hexagonal phases of the two systems clearly showed different textures. While in the hexagonal phase of the C12EO6 system only infinite long rods were visualized, short interrupted rods were found in the hexagonal phase of the C12EO〈7〉 system.
Similar content being viewed by others
References
Junginger HE, Heering H, Führer C, Geffers I (1981) Colloid Polym Sci 259:561
Lippold BC, Teubner A (1981) Pharm Ind 43:1123
Junginger HE, Heering H (1983) Deutsche Apotheker Zeitung 123:1988
Wahlgren S, Lindstrom AL, Friberg SE (1984) J Phar Sci 73:1484
Friberg SE, El-Nokaly MA (1985) In: Rieger MM (ed) Surfactants in cosmetics. Dehlen, New York, p 55
Boddé HE, de Vringer T, Junginger HE (1986) Progr Colloid Polym Sci 72:37
Eccleston GM (1986) Pharmacy International 7:63
Singer EJ, Pittz EP (1985) In: Rieger MM (ed) Surfactants in cosmetics. Dehlen, New York, p 178
Treguier JP, Lo I, Seiller M, Puisieux F (1975) Pharm Acta Helv 50:421
Feger M (1978) Beitrag zum physikalisch-chemischen Verhalten von Cremes. Dissertation, Braunschweig
Mitchell DJ, Tiddy GJT, Waring L, Bostock T, McDonald MP (1983) J Chem Soc Faraday Trans 1 79:975
Luzzati V, Tardieu A, Gulik-Krzywicki T, Rivas E, Reiss-Husson F (1968) Nature 220:485–488
Scriven LE (1976) Nature 26:123–125
Lindblom G, Larsson K, Johansson LBA, Fontell K, Forsen S (1979) J Am Chem Soc 101:5465–5470
Luzzati V, Op den Kamp JAF, Roelofsen B, Wirtz KWA (1968) in Lipids and Membranes: Past, present and future. Elsevier Science Publisher BV, Amsterdam
Fontell K (1981) Mol Cryst Liq Lyst 63:59
Fontell K, Fox KK, Hanssen E (1985) Mol Cryst Liq Cryst Lett 1:9
Jousma H, Bouwstra JA, Junginger HE, Mol Cryst Liq Lyst Lett, in press
Jousma H, Joosten JGH, Junginger HE (1988) Colloid Polym Sci 266:640
Ziegenmeyer J (1986) Fette-Seifen-Anstrichmittel 88:407
Handbook of Chemistry and Physics. 56th edition, CRC Press
Tanford C (1972) J Phys Chem 76:3020
Bailey Jr FE, Koleske JV (1976) Poly(ethylene oxide). Academic Press, New York
Moucharafieh N, Friberg SE, Larsen DW (1979) Mol Cryst Liq Cryst 53:189–206
Jousma H, Joosten JGH, Gooris GS, Junginger HE, Colloid Polym Sci, submitted
Jousma H, Bouwstra JA, Spies F, Junginger HE (1987) Colloid Polym Sci 265:830
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bouwstra, J.A., Jousma, H., van der Meulen, M.M. et al. A structural study of the mesophases of two oxyethylene alkyl ether-decane-water systems, a comparison between technical grade C12EO〈7〉 and pure C12EO6 . Colloid & Polymer Sci 267, 531–538 (1989). https://doi.org/10.1007/BF01416061
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01416061