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The European Physical Journal E

, Volume 20, Issue 1, pp 99–108 | Cite as

Spontaneous bending of 2D molecular bottle-brush

  • A. Subbotin
  • J. de Jong
  • G. ten Brinke
Regular Article

Abstract.

Using a scaling approach we consider a 2D comb copolymer brush under bending deformations. We show that the rectilinear brush is locally stable and can be characterized by a persistence length λ increasing with the molecular weight of grafting side chains as λ ∼ M3. A bending instability due to redistribution of the side chains appears in the non-linear regime where bending is strong. Arguments are presented that the brush conformations consist of alternating rectilinear and bent sections corresponding to the different free-energy minima.

PACS.

82.35.Jk Copolymers, phase transitions, structure 89.75.Fb Structures and organization in complex systems 

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Copyright information

© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2006

Authors and Affiliations

  1. 1.Institute of Petrochemical SynthesisRussian Academy of SciencesMoscowRussia
  2. 2.Laboratory of Polymer Chemistry and Materials Science CentreUniversity of GroningenGroningenThe Netherlands

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