The ferroelectric Langmuir-Blodgett films are prepared and investigate
d for the first time. The films are prepared from the ferroelectric co
polymer of vinylidene fluoride with trifluorethylene. The films with t
he thickness of 150 Angstrom show the pyroelectric effect being measur
ed along the polar C-axis perpendicular to the substrate surface, part
ial remnant polarization switching and ferroelectric phase transition
of the first order, characterized by the temperature hysteresis.