Browsing Engineering (Faculty of) by Author "Mahmoudi, Pendar"
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Effect of chain stiffness on the entropic segregation of chain ends to the surface of a polymer melt
Blaber, Steven; Mahmoudi, Pendar; Spencer, Russell; Matsen, Mark (2019)Entropic segregation of chain ends to the surface of a monodisperse polymer melt and its effect on surface tension is examined using self-consistent field theory (SCFT). In order to assess the dependence on chain stiffness, ... -
Entropic Segregation at Surfaces of Polymer Melts
Mahmoudi, Pendar (University of Waterloo, 2018-05-04)Throughout recent years, polymers have been one of the most widely used materials in industry due to their suitability to a vast variety of fields from construction to biomedical and technological utilities. Their extensive ... -
Entropic segregation of short polymers to the surface of a polydisperse melt
Mahmoudi, Pendar; Matsen, Mark (Springer, 2017)Chain ends are known to have an entropic preference for the surface of a polymer melt, which in turn is expected to cause the short chains of a polydisperse melt to segregate to the surface. Here, we examine this entropic ... -
Segregation of chain ends to the surface of a polymer melt: effect of surface profile versus chain discreteness
Mahmoudi, Pendar; Matsen, Mark (Springer, 2016)Silberberg has argued that the surface of a polymer melt behaves like a reflecting boundary on the random-walk statistics of the polymers. Although this is approximately true, independent studies have shown that violations ... -
Testing the Universality of Entropic Segregation at Polymer Surfaces
Mahmoudi, Pendar; Forrest, William; Beardsley, Tom; Matsen, Mark (2018)This study addresses entropic segregation effects at the surfaces of monodisperse and bidisperse melts. For the monodisperse melts, we focus on the segregation of chain ends to the surface, and for the bidisperse melts, ...