Layer-by-layer thin films of polyaniline alternated with natural rubber and their potential application as a chemical sensor

Autor(es)

Cena, C. R. ; Malmonge, L. F. ; Malmonge, J. A.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF POLYMER RESEARCH; v. 24, n. 1 DEC 27 2016.
• Citações Web of Science: 3

Resumo

Self-assembled films of polyaniline (PAni)alternated with natural rubber (NR) were successfully produced by layer-by-layer self-assembly technique (LbL), by using the latex of natural rubber obtained from the Hevea-brasiliensis tree. The centrifuged NR latex was used without any previous treatment. The influence of pH on the adsorption kinetics and film growth was evaluated. The films presented a typical linear growth, showing a constant adsorption of material in each deposition step. The FTIR spectroscopy study confirmed the presence of rubber chains (cis-1,4-poly-isoprene) on the LbL films. The morphological characterizations showed great roughness and a spherical shape of the NR particles as a predominant characteristic on the film's surface. Finally, the potential use of the films as a chemical sensor was identified in our tests. (AU)

• Processo FAPESP: 06/01954-4 - Obtencao e caracterizacao de filmes nanoestruturados de polianilina latex de borracha natural.
• Beneficiário: Cícero Rafael Cena da Silva
• Modalidade de apoio: Bolsas no Brasil - Mestrado