D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials
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.
D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials
Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
Elizabeth A. Sholler, Frederick M. Meyer, et al.
SPIE AeroSense 1997
Thomas H. Baum, Carl E. Larson, et al.
Journal of Organometallic Chemistry