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Full Description
Springer-Verlag 2003 This issue is dedicated to Doctor Shuji Saito on the occasion of the 50th anniversary of his ?rst paper published in the Journal of German Colloid Society. The paper entitled "Die Solubilisation von Polyvinylazetat" by N. Sata and S. Saito appeared in the Kolloid Zeitschrift (1952) 128: 154. According to the title, the paper dealt with the solubilization of poly(vinyl acetate) (PVAc) in aqueous sodium dodecyl sulfate (SDS) solutions. The authors observed that PVAc, a water-insoluble polymer, is c- pletely dissolved by micellar SDS solutions, a result that mostly intrigued them. One has to recall that at that time, the micellar solubilization was the only available theory to explain the dissolution of hydrophobic compounds in micellar systems. The theory worked well in the case of low molecular weight compounds like hydrocarbons, oleophilic dyes, etc. , which are solubilized in the inner core of the micelle, but how can a small micelle accommodate a giant polymer molecule? To solve this problem Sata and Saito originally proposed a model consisting of surfactant aggregates formed along the polymer backbone.
The model based on simple viscometric measurements was later in the eighties con?rmed by the advent of the more sophisticated neutron scattering technique and is nowadays called the "necklace model". During his career, Dr.
Contents
Surfactant structure effects on binding with oppositely charged polyelectrolytes observed by fluorescence of a pyrene probe and label.- Dependence of the aggregation mode of two bidentate azo dyes in polycation/dye multilayers on the dye structure and the polycation conformation.- Counterion effect of cationic surfactants on the interaction with poly(acrylic acid).- Polyelectrolyte-induced structural changes in the isotropic phase of the sulfobetaine/ pentanol/toluene/water system.- Surfactant-polymer aggregates of mixed cationic micelles and anionic polyelectrolytes: a surfactant head group contribution.- Physicochemical investigations on the interaction of cationic cellulose ether derivatives with cationic amphiphiles in an aqueous environment.- Use of nonionic ethylene oxide surfactants as phase-transfer catalysts for poly(acrylic acid) adsorption to silica against an electrostatic repulsion.- Molecular modeling of anthracycline—DNA interaction.- Interactions between high-molecular-weight poly(ethylene oxide) and sodium dodecyl sulfate.- Diverse actions of added alkanols on the binding of dibucaine cation to an anionic polymer.- The aqueous liquid/liquid interphases formed by chitosan-anionic surfactant complexes.- Microcalorimetric evidence and rheological consequences of the salt effect on carbopol-surfactant interactions.- Swelling isotherms of surfactant-responsive polymer gels.- A comparison study between sodium decyl sulfonate and sodium decyl sulfate with respect to the interaction with poly(vinylpyrrolidone).- Influence of the polycation architecture on the oscillatoric forces of aqueous free-standing polyelectrolyte/surfactant films.- Thermodynamic analysis of serum albumin denaturation by sodium dodecyl sulfate.- The surfactant characteristics ofshort-chain lecithins analyzed through lecithin-lecithin and lecithin-biopolymer interactions.- Isothermal titration calorimetry and fluorescence spectroscopy studies of the interactions between surfactants and a phosphorylcholine-based polybetaine.
