Volume 88, Number 6, December 2009
Article Number 63002
Number of page(s) 6
Section Atomic, Molecular and Optical Physics
Published online 01 December 2009
EPL, 88 (2009) 63002
DOI: 10.1209/0295-5075/88/63002

Microphase separation in bottlebrush polymers under poor-solvent conditions

P. E. Theodorakis, W. Paul and K. Binder

Institut für Physik, Johannes Gutenberg-Universität - Staudinger Weg 7, D-55099 Mainz, Germany, EU

received 21 August 2009; accepted in final form 20 November 2009; published December 2009
published online 23 December 2009

Molecular-dynamics simulations are used to study the structure of bottlebrush polymers with rigid backbones, for various grafting densities, side chain lengths, and varying solvent quality. While we confirm different states of the bottlebrush proposed by Sheiko et al. (Eur. Phys. J. E13 (2004) 125) we find that the transition between stretched and collapsed brushes occurs in a rather gradual manner. The pearl-necklace structure occurring at intermediate grafting densities and rather low temperatures has a pronounced medium-range order along the backbone.

36.20.-r - Macromolecules and polymer molecules.
36.20.Ey - Conformation (statistics and dynamics).
64.75.Va - Phase separation and segregation in polymer blends/polymeric solutions.

© EPLA 2009