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Polymer solutions: from hard monomers to soft polymers

Jean-Pierre Hansen, Chris I Addison and Ard A Louis

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A coarse-graining strategy for dilute and semi-dilute solutions of interacting polymers, and of colloid–polymer mixtures, is briefly described. Monomer degrees of freedom are traced out to derive an effective, state-dependent pair potential between the polymer centres of mass. The cross-over between good and poor solvent conditions is discussed within a scaling analysis. The method is extended to block copolymers represented as 'necklaces' of soft 'blobs', and its success is illustrated here in the case of a symmetric diblock copolymer which exhibits microphase separation.


PACS

61.25.H- Macromolecular and polymers solutions; polymer melts

65.20.-w Thermal properties of liquids

64.75.-g Phase equilibria

82.70.Dd Colloids

61.20.Ja Computer simulation of liquid structure

Subjects

Soft matter, liquids and polymers

Chemical physics and physical chemistry

Dates

Issue 45 (16 November 2005)

Received 16 September 2005

Published 28 October 2005



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