Surface rheology of two-dimensional percolating networks: Langmuir films of polymer pancakes.
We report surface rheological measurements on Langmuir films of submicron-sized polymer coils (pancakes). The dynamics of the sol phase is found to be governed by free volume as in the simplest percolation problem. The observed rheology of the percolated phase (gel-like) is compatible with predictions for compressed arrangements of highly deformed soft particles interacting through their contact interfaces.
Monroy
Francisco
F
Departamento de Química Físca I, Facultad de Química, Universidad Complutense, E-28040 Madrid, Spain. monroy@quim.ucm.es
Ortega
Francisco
F
Rubio
Ramón G
RG
Ritacco
Hernán
H
Langevin
Dominique
D