Phase diagram for PEP/PBO/PEP-PBO ternary blends along the isopleth with equal volumes of the two homopolymers. The bicontinuous microemulsion channel is cutoff by a hexagonal phase at low temperatures. Experiments were conducted on the microemulsion sample containing 83% homopolymer.
Schematic representation of annular cone and plate shear cell for small angle x-ray scattering. The cone angle is exaggerated in this image; the actual angle is 5°.
(a) Steady-shear viscosities of the bicontinuous microemulsion normalized by the zero-shear viscosities at 110 , 115 , 120 , 125 , and . The solid and open symbols refer to data collected with increasing and decreasing rates, respectively. The zero-shear viscosities of the bicontinuous microemulsion , PEP homopolymer and PBO homopolymer are plotted in the inset as a function of temperature. (b) Critical shear rate for shear thickening and shear rate corresponding to the viscosity maximum vs temperature.
First normal stress difference of the bicontinuous microemulsion at 110 , 115 , 120 , 125 , and . The solid and open data were collected with increasing and decreasing rates, respectively.
Transient viscosity of the bicontinuous microemulsion on the startup of the steady shear at : , , , and .
Dynamic frequency sweep data of the bicontinuous microemulsion at , at the following strains: 5% , 10% , 20% , 50% , 100% , and 200% . (a) vs ; (b) ’ and ” vs .
Dynamic strain sweep data of the bicontinuous microemulsion at various frequencies : (a) 10 and (b) .
SAXS patterns of microemulsion recovery after cessation of shear flow at : (a) 5, (b) 25, (c) 45, (d) 85, (e) 205, and (f) . The corresponding radial averages: , , , , , and , are plotted in (g), along with the radial averages before shear and during shear .
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