Title

NOVOS MATERIAIS ELETROATIVOS A BASE DE FIBRAS DE POLIACRILONITRILA

NEW MATERIALS ELECTROACTIVE BASED IN THE POLYACRYLONITRILE FIBERS

Authorship

Filho, Eloi Alves da Silva; Filho, Evaristo Nunes; Prado, Adilson Ribeiro; Schneebeli, Hans-Jorg Andreas; Almeida, Luiz Carlos Pimentel

Filho, Eloi Alves da Silva

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Filho, Evaristo Nunes

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Prado, Adilson Ribeiro

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Schneebeli, Hans-Jorg Andreas

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Almeida, Luiz Carlos Pimentel

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DOI

10.5151/2594-5327-0092

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Abstract

Novos materiais eletroativos a base de fibras de Poliacrilonitrila (PAN) atualmente vem despertando o interesse de muitos pesquisadores em razão da grande aplicação deste polímero nas diversas áreas da ciência e indústria. Segundo Schreyer e colaboradores (1) as fibras da PAN são de potencial aplicação como atuadores lineares em músculos artificiais. O objetivo deste trabalho é fazer a síntese da PAN, dopagem com FeCl3 e caracterização utilizando as técnicas de espectroscopia infravermelho (FTIR), Ultravioleta-Visível (UV-Vis), Mössbauer, raios- x, análise térmica (DSC e TGA) e medidas de viscosidade. A metodologia utilizada neste trabalho foi feita em três etapas, a primeira é a polimerização da acrilonitrila (AN) em Poliacrilonitrila (PAN) via método descrito por Sánchez-Soto e colaboradores (2). A segunda etapa é o aquecimento deste produto da etapa 1 num frasco fechado a 60

New electroactive materials based in the Polyacrylonitrile fibers (PAN) currently are it comes the interest to many researchers in reason of the great application of this polymer in diverse field of the science and industry. Second Schreyer et al (1) the fibers of PAN are of the potential for application as linear actuators and artificial muscles. The objective this work is the synthesis of PAN, doping with FeCl3 and characterization used the techniques spectroscopic of the FTIR, ultraviolet-visible, Mössbauer and x-ray, thermical analysis (DSC, TGA), viscosimeter measurements. The methodology utilized in this work was done in three steps, the first is the polymerization of the acrylonitrile (AN) to polyacrylonitrile for the method described by Sánchez-Soto et al (2). The second step is the heating of this product obtained in first step. The third step was the doping of the PAN with 3 to 10% in mass of FeCl3. The results of characterization of the PAN shows that by x-ray the fibers of PAN it is a semicrystalline polymer with flexible chains in agreement with the obtained by Schreyer et al (1). The spectrum of FTIR and UV-Vis also confirmed the presence of functional groups this polymer and doped with FeCl3 by Mössbauer spectroscopy. It is concluded that the synthesis of polymer it is very interesting and application as artificial muscles will be contribute significantly for development of the news electroactive materials in the field robotic.

Keywords

Poliacrilonitrila; Polímeros; Músculo artificial; Robótica.

Polyacrilonitrile; Polymer; Artificial muscles; Robotic.