SIDE CHAIN TYPE POLYAMIDE ESTER AS ELECTROOPTICAL OR NON-LINEAR OPTICAL POLYMER, PREPARATION METHOD THEREOF AND FILM PRODUCED FROM THE SAME

摘要

PURPOSE: A side chain type polyamide ester is provided, which is an electrooptical or non-linear optical polymer excellent in an electrooptical or non-linear optical property and thermal stability and used for producing electrooptical or non-linear optical elements. And a film produced from the polymer is also provided. CONSTITUTION: The polyamide ester contains a repeating unit represented by the formula 1, wherein D is a residue of an organic colorant molecule having the electrooptical or non-linear optical property. The polyamide ester is produced by a process containing the steps of: preparing a polyamide acid by reacting a diamine monomer and an aromatic acid dianhydride; reacting the polyamide acid and the organic colorant molecule having a hydroxy group and the electrooptical or non-linear optical property. And the electrooptical or non-linear optical polymer film is produced by forming a film from the polyamide ester and poling at a high temperature under the electric field.