Phase behavior of the Pluronic P103/water system in the dilute and semi- dilute regimes

The detailed temperature-composition phase diagram of the P103/water system in the dilute and semi-dilute regions is reported here using density and ultrasound velocity measurements, differential scanning calorimetry (DSC), rheometry and dynamic (DLS) and static light scattering (SLS). These techniques allow a precise determination of the critical micellar temperature (CMT), the sphere-to-rod micellar transition temperature (GMT) and the cloud point temperature (CPT) as a function of concentration. DLS and SLS measurements were employed to gain information on unimers and aggregate sizes and on the transition from spherical-to-rod micelles. (C) 2009 Elsevier Inc. All rights reserved.