DEVELOPMENT OF CHARGE ELECTROCHEMICAL ACCUMULATOR OF CONDUCTIVE POLYPYRROLE/ CASSAVA STARCH BIOPOLYMERS

摘要

The development of electrochemical accumulators of charge starting from biopolymer conductors of cassava starch chemically synthesized from cassava and adding plasticizers (glycerol. polyethylene glycol and glutaraldehyde) as well as lithium perchlorate in varying concentration and the addition of polypyrrole, which was prepared electrochemically by chronoamperometry. Each of these polymers is used as a polymer solid electrolyte and electrode respectively. Para-toluensulfonic acid and indigo-carmine was used as counterion. Surface response methodology was implemented in order to maximize experimental conditions for accumulators assembly (chemical compositions of biopolymers) as well as electric properties. For all compositions it shows optimal values of electric properties. Comparing desirability between chemical compositions, it showed that best conditions for assembly of electrochemical accumulator were obtained with composition 2.