28 May 2017 to 2 June 2017
Queen's University
America/Toronto timezone
Welcome to the 2017 CAP Congress! / Bienvenue au congrès de l'ACP 2017!

Entropic segregation of short chains to the surface of a polydisperse melt

29 May 2017, 13:30
BioSci 1102 (Queen's University)

BioSci 1102

Queen's University

CLOSED - Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) M3-1 Soft Matter (DCMMP/SMC17) | Matière molle (DPMCM/MMC17)


Ms Pendar Mahmoudi (University of Waterloo)


It is well understood that chains ends have an entropic preference for the surface of a polymer melt, and consequently the shorter chains of a polydisperse melt are favored at the surface. We study this effect for a bidisperse melt using numerical self-consistent field theory (SCFT). Semi-analytical approximations to the SCFT are derived for the concentration profiles resulting in simple expressions for the integrated excess or depletion of each component.

Primary authors

Ms Pendar Mahmoudi (University of Waterloo) Prof. Mark Matsen (University of Waterloo)

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