Issue 13, 2002
From the journal:

Physical Chemistry Chemical Physics

Dissipative particle dynamics simulation of grafted polymer brushes under shear

Danial Irfachsyad,a   Dominic Tildesleya  and  Patrice Malfreytb  

a Unilever Research Port Sunlight, Bebington, Wirral, UK

b Laboratoire de Thermodynamique des Solutions et des Polymeres, UMR CNRS 6003, 24 avenue de Landais, Universite Blaise-Pascal, Aubiere Cedex, France

Abstract

The dissipative particle dynamics technique has been used to study grafted polymer chains under shear in solvents of different quality. We show that width of the grafted polymer chains decreases with increasing shear rate for an adsorbed monolayer and bilayer in an athermal solvent but that the layer shrinks in a poor solvent and there is no further decrease in the width on shearing. The polymer chains are preferentially aligned along the direction of the shear and tilted away from the surface normal with even the smallest shear rates. The orientational ordering with respect to the layer director increases with increasing shear. Reducing the quality of the solvent dramatically reduces the width of the grafted layers and the friction between them.

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B110738K
Article type
Paper
Submitted
22 Nov 2001
Accepted
22 Apr 2002
First published
27 May 2002

Phys. Chem. Chem. Phys., 2002,4, 3008-3015

Permissions

Request permissions

Dissipative particle dynamics simulation of grafted polymer brushes under shear

D. Irfachsyad, D. Tildesley and P. Malfreyt, Phys. Chem. Chem. Phys., 2002, 4, 3008 DOI: 10.1039/B110738K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements