Scaling theory of adsorption-induced stresses in polymer brushes grafted onto compliant structures
Scaling theory of adsorption-induced stresses in polymer brushes grafted onto compliant structures
The lateral forces exerted on a substrate by a layer of end-grafted polymer molecules are calculated on the basis of simple scaling arguments. The results are cast in terms of an equilibrium surface stress and an elastic constant, which describes the rate of change of the surface stress upon deformation of the substrate. This allows for straightforward integration of the present results into a continuum framework describing the response of a compliant structure, which facilitates device design and analysis. The results are illustrated with calculations for end-grafted poly(styrene) and poly(ethylene oxide), and the implications for building micromechanical devices based on adsorption-induced deformation are discussed.
buckling, chemo-mechanical processes, polymer brushes, adsorption
801-814
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209
March 2008
Utz, Marcel
c84ed64c-9e89-4051-af39-d401e423891b
Begley, Matthew R.
9f4e52bc-507a-4ef6-910f-bd11d25c2209
Utz, Marcel and Begley, Matthew R.
(2008)
Scaling theory of adsorption-induced stresses in polymer brushes grafted onto compliant structures.
Journal of the Mechanics and Physics of Solids, 56 (3), .
(doi:10.1016/j.jmps.2007.07.009).
Abstract
The lateral forces exerted on a substrate by a layer of end-grafted polymer molecules are calculated on the basis of simple scaling arguments. The results are cast in terms of an equilibrium surface stress and an elastic constant, which describes the rate of change of the surface stress upon deformation of the substrate. This allows for straightforward integration of the present results into a continuum framework describing the response of a compliant structure, which facilitates device design and analysis. The results are illustrated with calculations for end-grafted poly(styrene) and poly(ethylene oxide), and the implications for building micromechanical devices based on adsorption-induced deformation are discussed.
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Published date: March 2008
Keywords:
buckling, chemo-mechanical processes, polymer brushes, adsorption
Organisations:
Magnetic Resonance
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Local EPrints ID: 354831
URI: http://eprints.soton.ac.uk/id/eprint/354831
ISSN: 0022-5096
PURE UUID: ab83bc1d-5610-4fca-9890-9a21c8f9c953
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Date deposited: 23 Jul 2013 11:58
Last modified: 15 Mar 2024 03:44
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Author:
Matthew R. Begley
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