  In this paper we present results of dielectric measurements of the liquid
crystal (LC) 5*CB arranged in the porous matrices with a pore diameter of 100
and 20nm. We analyze the effect of surface interactions on the dynamics of
molecules. The results were compared with the results of the bulk 5*CB. The
most important result is the blocking of phase transition of 5*CB into the
solid phase in a matrix of 20 nm.
