Composite membrane

1 - 7 of 7 results

Preparation of highly stable palladium alloy composite membranes for hydrogen separation Palladium alloy composite membranes for hydrogen separation have been fabricated on a porous stainless steel (SS) support by the vacuum electrodeposition and laminating procedure of thin palladium alloy film less than 25 mm. In spite of the formation of an alloy with copper, the brittleness of the p Desalination 236 (2009)
Hydrolysis differences of polyacrylonitrile support membrane and its influences on polyacrylonitrile-based membrane performance As polyacrylonitrile (PAN)-based membrane plays an important role in the processes of pervaporation, bioproduct purification and water treatment, this study aims at better understanding the hydrolysis differences by using different alkaline species, and how the hydrolysis degree affect the subsequen Desalination 242 (2009)
PEEK–WC membranes and Krytox-Si-Nafion® composite membranes Two types of membranes, the sulfonated PEEK-WC (poly(oxa-p-phenylene-3,3-phthalido-p-phenylene-oxyphenylene) (SPWC) and Krytox-Si-Nafion® (KSiN) composite membranes are proposed for DMFC applications. The properties based on water uptake, ion exchange capacity, proton conductivity, gas permeability, Desalination 235 (2009)
Synthesis of hyperbranched copolyimides and their application as selective layers in composite membranes Self-standing dense membranes from hyperbranched copolyimides based on (hexafluoroisopropylidene)diphthalic anhydride (6FDA), 1,3,5-tris(4-aminophenoxy)benzene (TAPOB) and 4,4´-(hexafluoroisopropylidene)dianiline (6FpDA) were successfully prepared and characterized for physicochemical properties. Th Desalination 246 (2009)
Novel composite hollow fibre gas separation membranes with high selectivity and improved solvent resistance Composite gas separation membranes with a 0.1–3 mm thick film of Hyflon AD 60X on a porous hollow fibre ultrafiltration membrane support of amorphous poly(ether ether ketone), were prepared. The influence of the coating conditions on the film thickness and on the pure gas transport properties was st Desalination 200 (2006)
Selective separations and hydrodynamic studies: a new approach using molecularly imprinted nanosphere composite membranes A new approach of selective membrane-based separation has been developed by coating molecularly imprinted nanoparticles onto the surface of a membrane disc whereby a selective composite membrane shall be realized. The imprints at the surface of the nanoparticles are comparable to footprints of speci Desalination 149 (2002)
Preparation and morphological characterization of polyurethane/polyethersulfone composite membranes This work investigated the preparation of composite membranes by simultaneous casting of polyurethane and polyethersulfone solutions, to form the top and the support layers, respectively. These membranes are intended to be used for propylene/propane separation. Polyvinylpyrrolidone was used as an ad Desalination 145 (2002)

Preparation of highly stable palladium alloy composite membranes for hydrogen separation

Palladium alloy composite membranes for hydrogen separation have been fabricated on a porous stainless steel (SS) support by the vacuum electrodeposition and laminating procedure of thin palladium alloy film less than 25 mm. In spite of the formation of an alloy with copper, the brittleness of the p

Desalination 236 (2009)

Hydrolysis differences of polyacrylonitrile support membrane and its influences on polyacrylonitrile-based membrane performance

As polyacrylonitrile (PAN)-based membrane plays an important role in the processes of pervaporation, bioproduct purification and water treatment, this study aims at better understanding the hydrolysis differences by using different alkaline species, and how the hydrolysis degree affect the subsequen

Desalination 242 (2009)

PEEK–WC membranes and Krytox-Si-Nafion® composite membranes

Two types of membranes, the sulfonated PEEK-WC (poly(oxa-p-phenylene-3,3-phthalido-p-phenylene-oxyphenylene) (SPWC) and Krytox-Si-Nafion® (KSiN) composite membranes are proposed for DMFC applications. The properties based on water uptake, ion exchange capacity, proton conductivity, gas permeability,

Desalination 235 (2009)

Synthesis of hyperbranched copolyimides and their application as selective layers in composite membranes

Self-standing dense membranes from hyperbranched copolyimides based on (hexafluoroisopropylidene)diphthalic anhydride (6FDA), 1,3,5-tris(4-aminophenoxy)benzene (TAPOB) and 4,4´-(hexafluoroisopropylidene)dianiline (6FpDA) were successfully prepared and characterized for physicochemical properties. Th

Desalination 246 (2009)

Novel composite hollow fibre gas separation membranes with high selectivity and improved solvent resistance

Composite gas separation membranes with a 0.1–3 mm thick film of Hyflon AD 60X on a porous hollow fibre ultrafiltration membrane support of amorphous poly(ether ether ketone), were prepared. The influence of the coating conditions on the film thickness and on the pure gas transport properties was st

Desalination 200 (2006)

Selective separations and hydrodynamic studies: a new approach using molecularly imprinted nanosphere composite membranes

A new approach of selective membrane-based separation has been developed by coating molecularly imprinted nanoparticles onto the surface of a membrane disc whereby a selective composite membrane shall be realized. The imprints at the surface of the nanoparticles are comparable to footprints of speci

Desalination 149 (2002)

Preparation and morphological characterization of polyurethane/polyethersulfone composite membranes

This work investigated the preparation of composite membranes by simultaneous casting of polyurethane and polyethersulfone solutions, to form the top and the support layers, respectively. These membranes are intended to be used for propylene/propane separation. Polyvinylpyrrolidone was used as an ad

Desalination 145 (2002)

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