Flow Induced Structure and Rheology of Immiscible Polymer Blends

Relationship between morphology and rheology of immiscible polymer blends

Rheology and Morphology Development in Immiscible Polymer Blends

In this review, progress towards a fundamental understanding of the rheologymorphology relationship in immiscible polymer blends is discussed. The behaviour of biphasic polymer fluids, containing Newtonian components and subjected to simple shear flows is relatively well understood at present. The behaviour of these “simple” blends will be discussed first, as it serves as a reference for the ot...

Particle-induced bridging in immiscible polymer blends

Pickering emulsions are emulsions whose drops are stabilized against coalescence by particles adsorbed at their interface. Recent research on oil/water/particle systems shows that particles can sometimes adsorb at two oil/ water interfaces. Such “bridging particles” can glue together drops of oil in water or vice versa. We hypothesize that the same effect should apply in immiscible polymer blen...

Rheology and morphology of model immiscible polymer blends with monodisperse spherical particles at the interface

We show that the addition of solid particles to droplet–matrix blends of immiscible polymers induces massive changes in the rheology and the flow-induced structure even at loadings as low as 0.1 vol. %. Experiments were conducted using blends of polyethylene oxide (PEO, dispersed phase), polyisobutylene (PIB, continuous phase), and 470 nm monodisperse silica particles with two different surface...

Compatibilized Immiscible Polymer Blends for Gas Separations

Membrane-based gas separation has attracted a great deal of attention recently due to the requirement for high purity gasses in industrial applications like fuel cells, and because of environment concerns, such as global warming. The current methods of cryogenic distillation and pressure swing adsorption are energy intensive and costly. Therefore, polymer membranes have emerged as a less energy...