| Texto completo | |
| Autor(es): |
Ahmad, Atif
;
Anam
;
Pereira, Jose Clayston Melo
;
Ullah, Rizwan
;
Nazir, Afaq
;
Khan, Sabir
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | COLLOID AND POLYMER SCIENCE; v. N/A, p. 15-pg., 2025-08-18. |
| Resumo | |
Polyaniline (PANI) is a well-known conducting polymer recognized for its tunable electrical conductivity and structural versatility. In this work, DBSA-doped PANI-PVC composites were synthesized using inverse emulsion polymerization to improve their physicochemical and electrochemical properties. The composites were characterized using ultraviolet-visible (UV/Vis) spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). UV/Vis spectra confirmed the emeraldine salt (ES) form of PANI, indicating successful doping and integration within the PVC matrix, while FTIR supported the incorporation of DBSA as a dopant. Electrical conductivity increased with decreasing PVC content, with optimal performance observed at 3% PVC. XRD patterns suggested reduced compatibility between PANI and PVC at higher PVC concentrations. SEM images of the DBSA/PANI-PVC 3% composite showed a rough, compact, and porous morphology, in contrast to the smooth surface of pure PANI. TGA results indicated enhanced thermal stability of the DBSA/PANI-PVC 3% composite compared to pure PANI. Cyclic voltammetry (CV) at various scan rates and concentrations demonstrated improved electrochemical sensing performance of the DBSA/PANI-PVC 3% composite, highlighting its potential for use in ascorbic acid (AA) detection. (AU) | |
| Processo FAPESP: | 23/02475-8 - Complexos fosfínicos de Ru(II) com naftoquinonas e derivados: potenciais anticancerígenos, estudos in vitro e in vivo |
| Beneficiário: | Alzir Azevedo Batista |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 19/17762-7 - Síntese, caracterização e atividade anticâncer de complexos de ferro e rutênio contendo tiadiazóis |
| Beneficiário: | José Clayston Melo Pereira |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 22/14041-0 - Planejamento e investigação do potencial antitumoral de complexos metálicos contra células metastáticas e/ou quimiorresistentes |
| Beneficiário: | Adelino Vieira de Godoy Netto |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |