Main 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:

Ionic Polymer - Nonionic and Ionic Cosolute.- Surfactant Structure Effects on Binding with Oppositely Charged Polyelectrolytes Observed by Fluorescence of Pyrene Probe and Label.Aggregation Mode of Two Bidentate Azo Dyes in the Polycation/Dye Multilayers in Dependence on the Dye Structure and the Polycation Conformation.Counterion Effect of Cationic Surfactants on the Interaction with Poly(Acrylic Acid).Surfactant-Polymer Aggregates of Mixed Cationic Micelles and Anionic Polyelectrolytes: A Surfactant Head Group Contribution.Diverse Actions of Added Alkanols on Binding of Dibucaine Cation to an Anionic Polymer.The Aqueous Liquid/Liquid Interphases Formed by Chitosan-Anionic Surfactant Complexes.Polyelectrolyte Induced Structural Changes in the Isotropic Phase of Sulfobetaine/Pentanol/Toluene/Water System.Influence of the Polycation Architecture on the Oscillatoric Forces of Aqueous Free-Standing Polyelectrolyte/Surfactant Films.Microcalorimetric Evidence and Rheological Consequences of the Salt Effect on Carbopol/Surfactant Interactions.Isothermal Titration Calorimetry and Fluorescence Spectroscopy Studies of the Interactions between Surfactants and a Phosphorylcholine-based Polybetaine.Physicochemical Investigations on the Interaction of Cationic Cellulose Ether Derivatives With Cationic Amphiphiles in Aqueous Environment.Biopolymer - Cosolute Systems.- Molecular Modeling of Anthracycline-DNA Interaction.Thermodynamic Analysis of the Denaturation of Serum Albumin by Sodium Dodecyl Sulfate.The Surfactant Characteristics of Short-Chain Lecithins Analyzed throughout Lecithin-Lecithin and Lecithin-Biopolymer Interactions.Nonionic Polymer - Ionic Surfactant.- Interactions between High Molecular Weight Poly(Ethylene Oxide) and Sodium Dodecyl Sulfate.A Comparison Study between Sodium Decylsulfonate and Sodium Decylsulfate with respect to the Interaction with Poly(vinylpyrrolidone).Other Related Topics.- Use of Nonionic Ethylene Oxide Surfactants as Phase Transfer Catalysts for Poly(Acrylic Acid) Adsorption to Silica Against an Electrostatic Repulsion.Swelling Isotherms of Surfactant-Responsive Polymer Gels.