Abstract
Electromotive force and conductivity measurements have been used to study the counter ion association to micelles of sodium dodecyl sulfate, sodium dodecanoate, and sodium octanoate. The conductivity and electromotive force measurements match very well as both is mainly a measure of the amount of free counter ions in the solutions. Addition of alcohols to these micellar solutions show some differences between octanoate micelles on one hand, and dodecyl sulfate and dodecanoate on the other. Propanol and pentanol addition lead to an increase in the sodium activity for dodecyl sulfate and dodecanoate solutions that are well above the c.m.c. while a decrease is observed for octanoate. Addition of higher alcohols show that the counter ion activity and the conductivity go through a maximum at low alcohol contents and then decreases. At high surfactant contents alcohol addition may induce a shape transition from small spherical micelles to larger rod- or disc-like micelles. It appears that the degree of counter ion association increases when these larger micelles form.
Preview
Unable to display preview. Download preview PDF.
References
Wennerström H, Lindman B (1979) Phys Rep 52:1
Lindman B, Wennerström H (1980) Topics Curr Chem 87:1
Lindman B, Wennerström H (1982) In: Mittal KL, Fendler EJ (eds) Solution Behavior of Surfactants, vol 1. Plenum Press, New York, p 3
Kamenka N, Fabre H, Chorro M, Lindman B (1977) J Chim Phys 74:510
Vikingstad E (1980) J Colloid Interface Sci 73:260
Høiland H, Blokhus AM, Kvammen OJ, Backlund S (1985) J Colloid Interface Sci 107:576
Høiland H, Kvammen OJ, Backlund S, Rundt K (1984) In: Mittal KL, Lindman B (eds) Surfactants in Solution, vol 2. Plenum Press, New York, p 949
Backlund S, Rundt K (1980) Acta Chem Scand A34:433
Blokhus AM, Høiland H, Backlund S (1986) J Colloid Interface Sci 114:9
Lawrence ASC, Pearson JT (1967) Trans Faraday Soc 63:495
Tominaga T, Stem TB, Evans DF (1980) Bull Chem Soc Jpn 53:795
Birdi KS, Backlund S, Sørensen K, Krag T, Dalsager S (1978) J Colloid Interface Sci 66:118
Passinen K, Ekwall P (1956) Acta Chem Scand 10:215
Larsen JW, Magid LJ, Payton V (1973) Tetrahedron Lett 29:2663
Clarke DE, Hall DG (1974) Colloid Polym Sci 252:153
Hirsch E, Candau S, Zana R (1984) J Colloid Interface Sci 97:318
Ljosland E, Blokhus AM, Veggeland K, Backlund S, Høiland H (1985) Progr Colloid Polym Sci 70:34
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 1987 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG
About this paper
Cite this paper
Backhand, S., Rundt, K., Veggeland, K., Høiland, H. (1987). Association of sodium ions to aqueous alkylsulfate and alkanoate micelles in the presence of 1-alcohols. In: Surface Forces and Surfactant Systems. Progress in Colloid & Polymer Science, vol 74. Steinkopff. https://doi.org/10.1007/BFb0109378
Download citation
DOI: https://doi.org/10.1007/BFb0109378
Received:
Accepted:
Published:
Publisher Name: Steinkopff
Print ISBN: 978-3-7985-0745-6
Online ISBN: 978-3-7985-1694-6
eBook Packages: Springer Book Archive