Preparation and Characterization of Poly(lactic acid) Membranes and Films Coated with Polyaniline for Potential Use in Environmental Remediation

Ana Daymi Cabrera Gonzalez; José Ramón Flores León; Claudia Georgina Ramirez Mendoza; Dora Evelia Rodríguez Félix; María Mónica Castillo Ortega; Hisila Santacruz Ortega; Francisco Rodríguez Félix; Tomás Jesús Madera Santana; Jesús Manuel Quiroz Castillo

doi:10.1021/acsomega.3c06659

Preparation and Characterization of Poly(lactic acid) Membranes and Films Coated with Polyaniline for Potential Use in Environmental Remediation

ACS Omega. 2024 Jan 17;9(4):4439-4446. doi: 10.1021/acsomega.3c06659. eCollection 2024 Jan 30.

Authors

Ana Daymi Cabrera Gonzalez¹, José Ramón Flores León¹, Claudia Georgina Ramirez Mendoza¹, Dora Evelia Rodríguez Félix¹, María Mónica Castillo Ortega¹, Hisila Santacruz Ortega¹, Francisco Rodríguez Félix², Tomás Jesús Madera Santana³, Jesús Manuel Quiroz Castillo¹

Affiliations

¹ Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Hermosillo C.P. 83000, Sonora, Mexico.
² Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Hermosillo C.P. 83000, Sonora, Mexico.
³ Laboratorio de Envases, CTAOV, Centro de Investigación en Alimentos y Desarrollo A.C., Hermosillo C.P. 83304, Sonora, Mexico.

Abstract

This research outlines the fabrication of polymeric membranes and films of poly(lactic acid) (PLA), prepared via electrospinning and extrusion, respectively. These materials were subsequently coated with polyaniline (PANi) by using the in situ chemical polymerization technique. Scanning electron microscopy micrographs revealed that the best coatings were achieved when 3 and 30 min of contact time with the monomeric solution were used for the membrane and film, respectively. Additionally, Fourier transform infrared spectra, thermogravimetric studies, and contact angle measurements demonstrated proper interaction between PLA and PANi. The findings of these studies suggest that PLA membranes and films can serve as suitable substrates for the deposition of PANi, and the composite materials hold potential for use in environmental remediation applications.