No abstract

No abstract

No abstract

The time evolutions of the surface potential have been measured during and after step compressions of pentadecanoic acid and octadecanol monolayers at the air-water interface, by use of the radioactive electrode method. At each compression step, the Marangoni effect is observed. The propagation times obtained experimentally are in good agreement with the theoretical predictions. The phase transitions are associated with relaxations of the surface potential at the breakpoint (the LE breakdown) of the liquid expanded-liquid condensed transition of pentadecanoic acid and at the LC breakdown of the gas-liquid condensed transition of octadecanol in the anomalous domain of temperature.

No abstract