Piezoelectricity in electrically oriented films of poly-α-isobutyl-L-aspartate.

Discusses the preparation of highly piezoelectric films of poly (α-isobutyl-L-aspartate) from a solution in chloroform which was allowed to evaporate in a 2600-V/cm electric field, with the field direction parallel to the casting surface. Description of the resulting oriented film; Materials and method; Characteristic of liquid crystals.