Patent ID: 6984348

Claim:
A process for the preparation of a conducting or semi-conducting polymer with high piezosensitivity which comprises, polymerizing a monomer in an aqueous medium containing an initiator and dopant to obtain the conducting/semi-conducting polymer, precipitating the polymer, separating the conducting/semi-conducting polymer in the form of a powder, drying and crushing the polymer powder, adding the conducting/semi-conducting polymer powder to a solution of another polymer in a solvent, mixing the solution thoroughly, casting a film from the solution, holding the film between two metal electrodes and raising the temperature, applying electric potential at a temperature ranging between 40° C. to 100° C. for duration ranging from 10 min to 300 min and at a voltage in the range of 50 V to 100 V, cooling the film to obtain conducting/semi-conducting polymer having high piezosensitivity.