By D. Attwood
It is now twelve years on account that Solubilization through Surface-Active brokers seemed. because the book of that monograph the topic has elevated speedily because the special capability of surfactants has turn into identified to a much broader circle of scientists. In a up to date evaluate Menger (Accounts of Chemical learn, 12 (1979) 111) envisioned that when you consider that 1970 there were over 2800 guides on micelles and micellization by myself. the subject of catalysis in micellar media used to be in an early level of improvement in 1968 however the progress during this topic has given upward push to a very good textbook via Fendler and Fendler. we've felt for a while revision of Solubilization by means of Surface-Active brokers used to be late. The booklet has been out of print for a while. as a result of strain of alternative paintings, Professor P. H. Elworthy and Dr C. B. Macfarlane have been not able to adopt the paintings of revision yet whereas operating jointly on an undergraduate textbook the current authors made up our minds to started working, figuring out either the impossibility of manufacturing a finished textbook and the necessity to regulate the scope of the booklet. Micellar solubilization happens over a comparatively small surfactant focus diversity; due to this and as the phenomenon isn't saw in isolation, we have now prolonged the textual content to incorporate floor task, emulsions and suspensions and, as our emphasis is on formula of medicinal items, to the of the toxicology of surface-active agents.
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Extra info for Surfactant Systems: Their chemistry, pharmacy and biology
G. 9REENWOOD, G. D. PARFITT, N. H. PICTON and D. G. WHARTON (1968) in Adsorption from Aqueous Solution (eds. W·. J. Weber and E. Matijevic) American Chemical Society, Washington DC, p. 135. P. CONNOR and R. H. OTTEWILL (1971) J. Colloid Interface Sci. 37, 642. P. MUKERJEE and A. 8. American Chemical Society, Washington, p. 107. B. TAMAMUSHI and K. TAMAKI (1957) Proc. lInd Intern. Congo Surface Activity London, Vol. III. Butterworths, London, p. 449. T. WAKAMATSU and D. w. FUERSTENAU (1968) in Adsorptionfrom Aqueous Solution, (eds.
However, the hydrated solid surfactant which dissolves at this higher temperature goes into solution as micelles rather than monomer since the total surfactant in solution now exceeds the CMC. The continued attempt by the system to restore the solid-monomer equilibrium at this temperature results in the dissolution of more and more solid until the solid dissolves completely. Hence at a temperature slightly above the Krafft point, the solubility increases dramatically. The temperature at which this occurs is referred to as the critical micelle temperature (CMT).
Region with homogeneous, isotropic aqueous solutions. L 2 • Region with homogeneous, isotropic decanolic solution. B. Region with homogeneous, lamellar meso phase (mucous woven type). G. Region with homogeneous, lamellar mesophase (neat phase type). C. Region with homogeneous, normal two-dimensional tetragonal meso phase (square phase). M I. Region with homogeneous, normal two-dimensional hexagonal meso phase (middle phase). M 2 • Region with homogeneous, reversed two-dimensional hexagonal meso phase (middle phase, reversed).
Surfactant Systems: Their chemistry, pharmacy and biology by D. Attwood