PHASE-DIAGRAMS OF THE TERNARY-SYSTEMS SODIUM DODECYL SULFATE POLY(PROPYLENE GLYCOL) (425 AND 1000 MOLECULAR WEIGHT)H2O - STUDY OF THE PHYSICAL-PROPERTIES OF THE L-PHASE/

The phase diagrams for the SDS/PPG (MW = 425 and 1000)/H2O ternary sys tems have been studied. The systems show an L phase and two liquid cry stalline regions characterized as hexagonal and lamellar, respectively . The low viscous L phase, which is clear and isotropic, extends from the water-rich corner to the polymer-rich corner in both phase diagram s and is similar to the L phase in the CTAB/PPG (MW = 425 and 1000)/H2 O systems. Conductivity, steady-state quenching fluorescence, and rheo logy have been used to study the physical properties of the L phase; i ts influence on the basic hydrolysis of the crystal violet has been an alyzed in order to elucidate the presence of a reverse micelles region at high PPG concentration.