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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Ionic Polymer-Metal Composite Coated with Polyaniline Film by Electrodeposition: A Promising IPMC/PANI Junction for Applications in Robotics and Bioengineering

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Author(s):
Cristiano Porporatti Zimmermann [1] ; Gabriela Madella Kranz [2] ; João Paulo Eckert [3] ; Lucas Fadani [4] ; Micheli Zanetti ; Josiane Maria Muneron de Mello ; Paulo Roberto Innocente [7] ; Gustavo Lopes Colpani ; Márcio Antônio Fiori [9] ; Carlos Henrique Scuracchio [10]
Total Authors: 10
Affiliation:
[1] Universidade Federal de São Carlos. Programa de Pós-Graduação em Ciência e Engenharia de Materiais - Brasil
[2] Universidade Comunitária da Região de Chapecó. Programa de Pós-Graduação em Tecnologia e Gestão da Inovação - Brasil
[3] Universidade Comunitária da Região de Chapecó. Escola Politécnica. Engenharia Química - Brasil
[4] Universidade Comunitária da Região de Chapecó. Escola Politécnica. Engenharia Química - Brasil
[7] Universidade Comunitária da Região de Chapecó. Escola Politécnica. Engenharia Química - Brasil
[9] Universidade Tecnológica Federal do Paraná. Departamento de Física - Brasil
[10] Universidade Federal de São Carlos. Programa de Pós-Graduação em Ciência e Engenharia de Materiais - Brasil
Total Affiliations: 10
Document type: Journal article
Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 26, 2023-05-29.
Abstract

Ionic polymer-metal composites (IPMC) are typical electromechanical transducing materials suitable for use as soft actuators, bioinspired artificial muscles and sensors. However, IPMC produced with platinum films has the great disadvantage of the large number of cracks and wrinkles, which reduce the performance of the electrode. Polyaniline (PANI) is a promising conductive polymer that can address this issue, especially when it is electropolymerized on the platinum surface. An IPMC/PANI actuator was developed by potentiostatic electropolymerization of PANI at 0.9 V in 0.1 M and 0.3 M aniline solution. The characterization revealed that PANI is preferentially electropolymerized in the platinum film cracks and improve the electronic conduction mechanisms, which is not reported so far. The maximum tip displacement of the IPMC/PANI under 5 V was 8.3 mm, while for the IPMC was equal 5.2 mm. These results provide a simple and effective method to repair IPMCs and enhance their electromechanical performances. (AU)

FAPESP's process: 18/07001-6 - Study and characterization of ionic conductive polymers used as artificial muscles: proposals for performance improvement
Grantee:Carlos Henrique Scuracchio
Support Opportunities: Regular Research Grants