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Updated: Aug 24, 2026

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
Published on: December 24, 2014
Collective dynamics of an end-grafted polymer brush in solvents of varying quality
G E Yakubov1, B Loppinet, H Zhang
1FORTH/Institute of Electronic Structure and Laser, P.O. Box 1527, 711 10 Heraklion, Crete, Greece.
Abstract:
The dynamic structure of a chemically end-grafted polystyrene brush bathed in solvents of varying interactions was studied by evanescent wave dynamic light scattering. It reveals distinct behavior under good and poor solvent conditions. The cooperative diffusion is a generic feature of a good solvent environment, whereas a second slow relaxation mode appears in the theta solvent regime. Its characteristics resemble self-diffusion of clusters in a gel while weak concentration fluctuations in the polymer brush decay similarly to a semidilute polymer solution.
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