Crown ether

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Propylene/propane separation with copolyimides containing benzo-15-crown-5-ether to incorporate silver ions A 6FDA (4,4‘-hexafluoro isopropylidene diphthalic anhydride) based copolyimide has been synthesized containing the diamines DABA (3,5-diamino benzoic acid) and a 15-crown-5-diamine to separate propylene/ propane mixtures. With the carboxylic acid group of DABA crosslinking the polymer chains is poss Desalination 145 (2002)
Removal of gold as Au(Tu)2+ complex with a supported liquid membrane containing macrocyclic polyethers ligands as carriers Facilitated transport of gold(I) ions in acidic thiourea medium, across a Supported Liquid Membrane (SLM) by using dibenzo-18-crown-6 (DB18C6), diaza-18-crown-6 (DA18C6), hexathia-18-crown-6 (HT18C6) and hexaaza-18-crown-6 (HA18C6) as carriers, dissolved in chloroform, has been investigated. The fun Desalination 144 (2002)

Propylene/propane separation with copolyimides containing benzo-15-crown-5-ether to incorporate silver ions

A 6FDA (4,4‘-hexafluoro isopropylidene diphthalic anhydride) based copolyimide has been synthesized containing the diamines DABA (3,5-diamino benzoic acid) and a 15-crown-5-diamine to separate propylene/ propane mixtures. With the carboxylic acid group of DABA crosslinking the polymer chains is poss

Desalination 145 (2002)

Removal of gold as Au(Tu)2+ complex with a supported liquid membrane containing macrocyclic polyethers ligands as carriers

Facilitated transport of gold(I) ions in acidic thiourea medium, across a Supported Liquid Membrane (SLM) by using dibenzo-18-crown-6 (DB18C6), diaza-18-crown-6 (DA18C6), hexathia-18-crown-6 (HT18C6) and hexaaza-18-crown-6 (HA18C6) as carriers, dissolved in chloroform, has been investigated. The fun

Desalination 144 (2002)

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