Publication | Closed Access
Concentrated Aqueous Micellar Solutions of Diblock Copoly(oxyethylene/oxybutylene) E<sub>41</sub>B<sub>8</sub>: A Study of Phase Behavior
161
Citations
30
References
1997
Year
EngineeringResponsive PolymersChemistrySoft MatterPolymersChemical EngineeringPolymer ProcessingRheologyBiophysicsPolymer ChemistryMaterials ScienceSoft GelSpherical MicellesMicellePhase BehaviorDiblock CopolyPhase DiagramBlock Co-polymersPolymer SolutionPolymer SciencePolymer CharacterizationPolymer PropertyAmphiphilic System
A phase diagram is presented for aqueous solutions of oxyethylene/oxypropylene (E/B) block copolymer E41B8. The concentration range covered is 5−70 wt %. The range of techniques used (tube inversion, polarized-light microscopy, rheometry, and differential scanning calorimetry) enabled regions to be assigned to micellar sol, isotropic soft gel, isotropic cubic gel, and birefringent hexagonal gel. The soft gel is assigned to a fractal network formed from spherical micelles and highly swollen by the water phase.
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