Shiyi Chen, Daniel Martínez, et al.
Physics of Fluids
The orientation dynamics of polymers in constrained geometries is considered through studies of monolayer films at the air-water interface. Here, in situ optical techniques are employed to probe flow orientation in monolayers of phthalocyaninatopolysiloxane dispersed in either docosanoic acid, 1,2-dimyristoyl-sn-glycero-3-phosphatidylcholine, or arachidyl alcohol. Compression of the polymer monolayer creates alignment perpendicular to the compression direction. A well-defined extensional flow is imposed in the monolayer to study the dynamics of flow-induced anisotropy. The orientation process obeys a strain-scaling law, indicating the absence of relaxation on the time scale of the flow.
Shiyi Chen, Daniel Martínez, et al.
Physics of Fluids
Fernando Marianno, Wang Zhou, et al.
INFORMS 2021
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
G. Will, N. Masciocchi, et al.
Zeitschrift fur Kristallographie - New Crystal Structures