NONSTEADY EFFECTS DUE TO A SMALL SURFACE PRESSURE PERTURBATION IN AN ELASTIC INSOLUBLE MONOLAYER

A theoretical analysis of the surface velocity and surface pressure di stributions along an elastic insoluble monolayer in the nonsteady regi on following the end of a continuous monolayer compression was develop ed. The surface pressure distribution in the nonsteady regions at the beginning and after the end of the compression of a pentadecanoic acid monolayer was experimentally studied. The behavior of the experimenta l surface pressure variations with time and distance to the moving bar rier are in a good agreement with the theoretical description for bath nonsteady regions. (C) 1995 Academic Press, Inc.