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Electrochemical actuation properties of a novel solution-processable polythiophene

Journal Article


Abstract


  • A soln.-processable polythiophene, poly((E)-4,4''-didecoxy-3'-styryl[2,2':5',2'']terthiophene) demonstrated large electrochem. induced strain up to 11.5%. Free-standing polymer films were characterised using four-point probe cond. measurements, cyclic voltammetry and electrochem. actuation measurements. Conductivities of .apprx.6 ô 10-5 S/cm (reduced state) or .apprx.1-2 S/cm (oxidised state) were measured. Well-defined polymer oxidn.-redn. responses were obsd. in both the propylene carbonate and acetonitrile electrolytes, with electrochem. efficiency of >80% obsd. under ideal conditions. Results obtained suggested that the actuation strain approx. correlates with the size of the anion (i.e. TFSI > PF6 - > ClO4 -) used in the electrolyte. The largest strain .apprx.11.5% was obtained in an electrolyte soln. consisting of 0.1 M Li.TFSI in acetonitrile. The max. strain attainable increased with an increase in the anodic potential applied and decreased with an increase in stimulation frequency or increasing mech. load. Such functionalised polythiophene material has the combined advantage of soln. processability and the ability to produce large strain.

Publication Date


  • 2007

Citation


  • Wu, Y., Ballantyne, A. M., Wagner, P. W., Zhou, D., Spinks, G. Maxwell., Officer, D. L. & Wallace, G. G. (2007). Electrochemical actuation properties of a novel solution-processable polythiophene. Electrochimica Acta, 53 (4), 1830-1836.

Scopus Eid


  • 2-s2.0-35548946136

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4141

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 1830

End Page


  • 1836

Volume


  • 53

Issue


  • 4

Abstract


  • A soln.-processable polythiophene, poly((E)-4,4''-didecoxy-3'-styryl[2,2':5',2'']terthiophene) demonstrated large electrochem. induced strain up to 11.5%. Free-standing polymer films were characterised using four-point probe cond. measurements, cyclic voltammetry and electrochem. actuation measurements. Conductivities of .apprx.6 ô 10-5 S/cm (reduced state) or .apprx.1-2 S/cm (oxidised state) were measured. Well-defined polymer oxidn.-redn. responses were obsd. in both the propylene carbonate and acetonitrile electrolytes, with electrochem. efficiency of >80% obsd. under ideal conditions. Results obtained suggested that the actuation strain approx. correlates with the size of the anion (i.e. TFSI > PF6 - > ClO4 -) used in the electrolyte. The largest strain .apprx.11.5% was obtained in an electrolyte soln. consisting of 0.1 M Li.TFSI in acetonitrile. The max. strain attainable increased with an increase in the anodic potential applied and decreased with an increase in stimulation frequency or increasing mech. load. Such functionalised polythiophene material has the combined advantage of soln. processability and the ability to produce large strain.

Publication Date


  • 2007

Citation


  • Wu, Y., Ballantyne, A. M., Wagner, P. W., Zhou, D., Spinks, G. Maxwell., Officer, D. L. & Wallace, G. G. (2007). Electrochemical actuation properties of a novel solution-processable polythiophene. Electrochimica Acta, 53 (4), 1830-1836.

Scopus Eid


  • 2-s2.0-35548946136

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4141

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 1830

End Page


  • 1836

Volume


  • 53

Issue


  • 4