INTEC 05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Towards an Improved Design for Nanoporous Polymeric MEMBRANES for Liquid
Autor/es:
NATALIA CASÍS; SERGE RABAINE; DIANA ESTENOZ; MARIA MARTA FIDALGO DE CORTALEZZI
Lugar:
Minneapolis
Reunión:
Congreso; AIChE 2011 Annual Meeting; 2011
Institución organizadora:
AIChE
Resumen:
In this work, new polymeric porous membranes with ordered structure
were fabricated from templates made from silica particles. Silica
particles were synthesized following the Stöber-Fink-Bohn methods. Two different polymers were tested
to fabricate membranes: polystyrene and the diethyleneglycol
dimethacrylate /urethane dimethacrylate copolymer. Templates and porous films
were observed by SEM to analyze the pore morphology. The films exhibited a high
surface porosity, resulting from the contact points of particles and glass
slides during the infiltration process. Water filtration experiments were performed in order to demonstrate
pore connectivity in the films. The membranes were also characterized in terms of solute retention.
Molecular weight cut off profiles using dextrans of different molecular weights
were obtained.
