INIQUI   05448
INSTITUTO DE INVESTIGACIONES PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Effect of presursor and several deposition conditions on morphology and performance of composite membranes synthetized by plasma polymerization.
Autor/es:
E.F. CASTRO VIDAURRE1, R. SCHMITTGENS2, E. SCHULTHEISS3
Lugar:
Campina Grande - Brasil
Reunión:
Congreso; CITEM 07; 2007
Resumen:
Composite membranes for pervaporation were fabricated by low temperature plasma polymerization process using the 60 MHz PECVD process. Flat-sheet membranes prepared by phase inversion technique using polyether sulfone (PES) dissolved in dimethylacetamide (DMAc) with addition of  polyvinyl pyrrolidone (PVP) were used as the support for the composite membranes.   The influences of various precursors and several conditions of plasma polymerization on morphology and transport characteristics of the prepared membranes were analyzed by scanning electron microscopy (SEM) and gas permeation. The surface energy was determined by video based contact angle meter.     The monomer flow rate, the input power, the way of plasma pulsed, the plasma exposition time were optimized with the objective of to form a hydrophilic layer enough to cover the surface of the microporous membrane.       Key words:  composite membranes, morphology, gas permeation, plasma deposition, PES