Publicação
Conductive electrospun Polyaniline/Polyvinylpyrrolidone nanofibers: Electrical and morphological characterization of new yarns for electronic textiles
| Resumo: | Advanced functionalities textiles embedding electronic fibers, yarns and fabrics are a demand for innovative smart cloths. Conductive electrospun membranes and yarns based on polyaniline/polyvinylpyrrolidone (PANI/PVP) were investigated using the chemical modification of PANI instead of using conventional coating processes as in-situ polymerization. PANI was synthesized from the aniline monomer and the influence of the oxidant-to-monomer ratio on electrical conductivity was studied. The optimized conductivity of pellets made with pressed PANI powders was 21 S·cm-1. Yarns were then prepared from the t-Boc-PANI/PVP electrospun membranes followed by PANI protonation to enhance their electrical properties. Using this methodology, electrospun membranes and yarns were produced with electrical conductivities of 1.7 x 10-2 and 4.1 x 10-4 S·cm-1. |
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| Autores principais: | Perdigão, Patrícia |
| Outros Autores: | Faustino, Bruno Miguel Morais; Faria, Jaime; Canejo, João Paulo; Borges, João Paulo; Ferreira, Isabel; Baptista, Ana Catarina |
| Assunto: | Conductive textile Conductive yarn Electrospinning Polyaniline Polyvinylpyrrolidone Ceramics and Composites Civil and Structural Engineering Biomaterials Mechanics of Materials |
| Ano: | 2020 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade Nova de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Institucional da UNL |
| Resumo: | Advanced functionalities textiles embedding electronic fibers, yarns and fabrics are a demand for innovative smart cloths. Conductive electrospun membranes and yarns based on polyaniline/polyvinylpyrrolidone (PANI/PVP) were investigated using the chemical modification of PANI instead of using conventional coating processes as in-situ polymerization. PANI was synthesized from the aniline monomer and the influence of the oxidant-to-monomer ratio on electrical conductivity was studied. The optimized conductivity of pellets made with pressed PANI powders was 21 S·cm-1. Yarns were then prepared from the t-Boc-PANI/PVP electrospun membranes followed by PANI protonation to enhance their electrical properties. Using this methodology, electrospun membranes and yarns were produced with electrical conductivities of 1.7 x 10-2 and 4.1 x 10-4 S·cm-1. |
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