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| rdfs:seeAlso
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| Description
| - High-performance thin-film composite polyamide membranes for inorganic solute separation were prepared by the polymerization of trimesoyl chloride (TMC) with diethylenetriamine, 1,3-cyclohexanebis(methylamine), 2,3-diaminopyridine (DAP), m-phenylenediamine (MPD), piperazine (PIP) or a mixture of MPD and PIP/DAP, on the surface of polyethersulfone (PES) membrane support. The characteristics of the skin layers were studied by IR spectroscopy, DSC, TG analysis, and SEM techniques. It was attempted to correlate the observed flux and rejection properties of the membranes with their preparation conditions such as reactant concentrations, reaction time, etc. The TGA thermograms show that the initial decomposition temperatures of the PES and polyamide blends are in the range of 330?400°C, which is about 20?90°C lower than that of PES (420°C). SEM images display that the top polyamide skin surface presents a honeycomb-like structure and the cross-section image of the membranes clearly displays the presence of a nodular structure that arises from the dense polyamide skin. Between the nodules, there are pore channels that traverse up to the polyester support. The stability of a polyamide skin layer depends on the preparation conditions. A higher concentration of the acid chloride (TMC } 0.5%) results in the formation of a low molecular weight amide?acid [HOOC-(Ar-COHN-X-NHOC-Ar)n-COOH] skin layer, wherease higher concentration of amine (Amine } 4%) produces a low molecular weight amide?amine [H2N-(X-NHOC-Ar-COHN-X)n-NH2] skin layer. The performance, i.e. rejection and water flux, of the composite embranes is strongly dependent on the chemical nature of the reactants, and on the skin layer preparation conditions. Membranes having a wide range of performances ranging from reverse osmosis to nanofiltration to ultrafiltration.
- High-performance thin-film composite polyamide membranes for inorganic solute separation were prepared by the polymerization of trimesoyl chloride (TMC) with diethylenetriamine, 1,3-cyclohexanebis(methylamine), 2,3-diaminopyridine (DAP), m-phenylenediamine (MPD), piperazine (PIP) or a mixture of MPD and PIP/DAP, on the surface of polyethersulfone (PES) membrane support. The characteristics of the skin layers were studied by IR spectroscopy, DSC, TG analysis, and SEM techniques. It was attempted to correlate the observed flux and rejection properties of the membranes with their preparation conditions such as reactant concentrations, reaction time, etc. The TGA thermograms show that the initial decomposition temperatures of the PES and polyamide blends are in the range of 330?400°C, which is about 20?90°C lower than that of PES (420°C). SEM images display that the top polyamide skin surface presents a honeycomb-like structure and the cross-section image of the membranes clearly displays the presence of a nodular structure that arises from the dense polyamide skin. Between the nodules, there are pore channels that traverse up to the polyester support. The stability of a polyamide skin layer depends on the preparation conditions. A higher concentration of the acid chloride (TMC } 0.5%) results in the formation of a low molecular weight amide?acid [HOOC-(Ar-COHN-X-NHOC-Ar)n-COOH] skin layer, wherease higher concentration of amine (Amine } 4%) produces a low molecular weight amide?amine [H2N-(X-NHOC-Ar-COHN-X)n-NH2] skin layer. The performance, i.e. rejection and water flux, of the composite embranes is strongly dependent on the chemical nature of the reactants, and on the skin layer preparation conditions. Membranes having a wide range of performances ranging from reverse osmosis to nanofiltration to ultrafiltration. (en)
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| Title
| - A study on the relationship between preparation condition and properties/performance of polyamide TFC membrane by IR, DSC, TGA, and SEM techniques
- A study on the relationship between preparation condition and properties/performance of polyamide TFC membrane by IR, DSC, TGA, and SEM techniques (en)
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| skos:prefLabel
| - A study on the relationship between preparation condition and properties/performance of polyamide TFC membrane by IR, DSC, TGA, and SEM techniques
- A study on the relationship between preparation condition and properties/performance of polyamide TFC membrane by IR, DSC, TGA, and SEM techniques (en)
|
| skos:notation
| - RIV/49777513:23640/13:43919159!RIV14-MSM-23640___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/49777513:23640/13:43919159
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - Thermal analysis; Membrane performance; Reactant concentration; Polyamide skin stability; Thin-film composite membrane (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Desalination and Water Treatment
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Dodda, Jagan Mohan
- Kullová, Lucie
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| http://linked.open...ain/vavai/riv/wos
| |
| issn
| |
| number of pages
| |
| http://bibframe.org/vocab/doi
| - 10.1080/19443994.2012.693655
|
| http://localhost/t...ganizacniJednotka
| |
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