Journal article

On the location of the surface-attached globule phase in collapsing polymers

AL Owczarek, A Rechnitzer, J Krawczyk, T Prellberg

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | IOP PUBLISHING LTD | Published : 2007

Abstract

We investigate the existence and location of the surface phase known as the 'surface-attached globule' (SAG) conjectured previously to exist in lattice models of three-dimensional polymers when they are attached to a wall that has a short-range potential. The bulk phase, where the attractive intra-polymer interactions are strong enough to cause a collapse of the polymer into a liquid-like globule and the wall either has weak attractive or repulsive interactions, is usually denoted desorbed-collapsed or DC. Recently, this DC phase was conjectured to harbour two surface phases separated by a boundary where the bulk free energy is analytic while the surface free energy is singular. The surface ..

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