Aqueous solutions of a range of diblock copolymers with one stat-copoly (oxyethylene-oxypropylene) block and one poly(oxyethylene) block were investigated by a variety of techniques, including light scattering, photon correlation spectroscopy, surface tension and electron microscopy. Critical micelle concentrations and temperatures were determined and estimates made of micellar size and shape. The thermodynamic micellization functions were derived, and comparison made with those of a diblock-copoly (oxyethyleneoxypropylene). Thermally reversible gelation was noted, as were solubilization effects. The composition of the statistical block was of major importance in determining the hydrophobicity of a copolymer, and thereby its micellization and gelation properties.
Посилання на статтю:
Preparation and properties of stat-copoly- (oxyethylene-oxypropylene)-blockpoly( oxyethylene) : 2. Micellization and gelation properties in aqueous solution / Yulin Deng, Jifeng Ding, Rita B. Stubbersfield, Frank Heatley,David Attwood, Colin Price* and Colin Booth // Polymer. – 1992. – Vol 33. – P. 1963-1967.