Molecular visualization of conformation-triggered flow instability

TitleMolecular visualization of conformation-triggered flow instability
Publication TypeJournal Article
Year of Publication2005
AuthorsH Xu, D Shirvanyants, KL Beers, K Matyjaszewski, AV Dobrynin, M Rubinstein, and SS Sheiko
JournalPhysical Review Letters
Date Published01/2005
Abstract

A new type of flow fingering instability was obsd. in monolayer-thick acrylic graft polymer films as they spread on a solid substrate. Tracing the movement of individual mols. by at. force microscopy enabled us to follow the development of the flow instability on the mol. level and to understand the underlying phys. mechanism. The fingering instability was obsd. to be triggered by conformational changes of brushlike macromols. in response to the pressure gradient driving the flow. [on SciFinder(R)]

DOI10.1103/PhysRevLett.94.237801
Short TitlePhysical Review Letters