Polymeric Membranes from Colloidal Templates with Tunable Morphology

"Polymeric porous membranes were fabricated from templates made from silica particles. The templates were obtained by self-assembly and by the Langmuir-Blodgett (L-B) technique. For the self-assembly technique, suspensions of silica particles in ethanol were used to create the deposits. L-B dep...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Casis, Natalia, Ravaine, Serge, Reculusa, Stéphane, Colvin, Vicki L., Wiesner, Mark R., Estenoz, Diana, Fidalgo de Cortalezzi, María Marta
Formato: Artículos de Publicaciones Periódicas acceptedVersion
Lenguaje:Inglés
Publicado: 2022
Materias:
MEMBRANAS POLIMERICAS
POLIESTIRENOS
COPOLIMERIZACION
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/3722
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
Descripción
Sumario:"Polymeric porous membranes were fabricated from templates made from silica particles. The templates were obtained by self-assembly and by the Langmuir-Blodgett (L-B) technique. For the self-assembly technique, suspensions of silica particles in ethanol were used to create the deposits. L-B deposition was employed to produce templates of different particle sizes for the fabrication of asymmetric membranes. Two different polymers were tested to fabricate membranes: polystyrene (PS) and the diethyleneglycol dimethacrylate (DEGDMA)/urethane dimethacrylate (UDMA) copolymer. Templates and porous films were observed by SEM in order to analyze the pore morphology. Permeability of the poly(DEGDMA/UDMA) films was comparable to commercially available membranes. Proposed applications for these ordered porous structures include, sensors, filters, and catalytic materials."

Ejemplares similares