LIQUID CRYSTAL POLYMER FILM AND METHOD FOR FORMING THE SAME

The invention relates to the production of liquid-crystal films and coatings from substituted poly-para-xylylenes to be used as alignment layers in different electrooptical devices (alphameric indicators, displays, optical shutters, etc.). Particularly, the invention is directed to a one-step method for producing a liquid-crystal polymer film of the substituted poly-para-xylylene, said film simultaneously exhibiting the orienting properties with respect to LC molecules. The essence of a claimed method is in production of films and coatings from the substituted poly-para-xylylene by means of the successive execution in vacuum of sublimation at 0-350° C. and pyrolysis at 450-700° C. of the substituted cyclic di-para-xylylene in which substituent groups have terminal mesogenic groups, and condensation of the pyrolysis-generated substituted para-xylylene simultaneously with its polymerization on a substrate at 150-320° C. The process is performed at a predetermined film formation rate on the substrate surface. Produced are liquid-crystal polymer materials which films are good orientants with respect to LC molecules.