TRANSFER CHARACTERISTICS OF LANGMUIR FILMS OF POLYMETHACRYLATE WITH VARIOUS SIDE-CHAINS

Transfer characteristics of polymethacrlylate Langmuir films with vari ous side chains have been investigated at different values of transfer surface pressure. Surface pressure-area (pi-A) isotherms and surface potentials of polymethacrylate with various side chains were measured and apparent dipole moments of these Langmuir films at the air-water i nterface were calculated by using pi-A isotherms and surface potential s measured. Transfer characteristics of polymethacrylate Langmuir film s with different side chains were discussed in terms of the interactio ns between the films and the subphase and also the internal cohesions of polymethacrylate monolayers.