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arXiv · 2008.08699

Force-induced desorption of uniform block copolymers

EJ Janse van Rensburg·CE Soteros·SG Whittington
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Abstract

We investigate self-avoiding walk models of linear block copolymers adsorbed at a surface and desorbed by the action of a force. We rigorously establish the dependence of the free energy on the adsorption and force parameters, and the form of the phase diagram for several cases, including $AB$-diblock copolymers and $ABA$-triblock copolymers, pulled from an end vertex and from the central vertex. Our interest in block copolymers is partly motivated by the occurrence of a novel mixed phase in a directed walk model of diblock copolymers \cite{Iliev} and we believe that this paper is the first rigorous treatment of a self-avoiding walk model of the situation.

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EJ Janse van Rensburg, CE Soteros, SG Whittington. 2020-08-19. Force-induced desorption of uniform block copolymers. https://doi.org/10.1088/1751-8121%2Fabc5d2

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