Brownian diffusion close to a polymer brush.
In an effort to control particle diffusion near surfaces, we have studied the dynamics of colloidal hard spheres and soft compliant star copolymers on surfaces coated with polymer brushes using evanescent wave dynamic light scattering. The same experiments provide information on the brush structure and confined particle motion. The penetration into dense polydisperse brushes is size- and solvent-dependent.
Filippidi
E
E
Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, USA.
Michailidou
V
V
Loppinet
B
B
Rühe
J
J
Fytas
G
G
D004058:Diffusion; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry*; D013499:Surface Properties; D013997:Time Factors
D011137:Polystyrenes