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Journal of Sol-Gel Science and Technology

Journal of Sol-Gel Science and Technology

IF: 2.29
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Effect of polyether diamine on gas permeation properties of organic-inorganic hybrid membranes

Published:21 March 2007 DOI: 10.1007/s10971-007-1553-7
Chunwon Lim, Suk-In Hong, Hyunjoon Kim

Abstract

Sol-gel derived organic-inorganic hybrid materials were prepared by reacting 3-isocyanatopro pyltriethoxysilane (IPTS) with diamines containing polyether segments. Composite membranes were obtained by casting the hybrid sols on microporous polysulfone substrates. The structural analysis of these materials was characterized by FT-IR and 29Si-NMR. Gas permeation properties of hybrid membranes were evaluated, and the effect of the structure and molecular weight of polyether diamine on gas permeation properties was studied. The permeability coefficients increase with increasing of molecular weight of poly(propylene glycol) bis(2-aminopropyl ether) (APPG) and poly(propylene glycol)-block-poly(ethylene glycol)-block-poly(propylene glycol) bis(2-aminopropyl ether) (PAPE). The permeability coefficients of N2, O2, and CH4 for APPG2000 membrane are higher than those for PAPE2000. In contrast, the permeability coefficient of CO2 is higher for PAPE2000 membrane, because of strong affinity between CO2 molecules and ethylene oxide segments. The addition of TEOS into hybrid sol results in the decrease of gas permeability coefficients.

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Related products
Procduct Name CAS Molecular Formula Supplier Price
Tetraethyl orthosilicate 78-10-4 C8H20O4Si 475 suppliers $12.00-$1350.00
3-Isocyanatopropyltriethoxysilane 24801-88-5 C10H21NO4Si 340 suppliers $40.00-$529.00
Poly(propylene glycol) bis(2-aminopropyl ether) 9046-10-0 CH3CH(NH2)CH2[OCH2CH(CH3)]nNH2 217 suppliers $22.00-$472.00
Carbon dioxide 124-38-9 CO2 130 suppliers $214.00-$4290.25
Oxygen 7782-44-7 O2 98 suppliers $39.00-$6603.14
METHANE 74-82-8 CH4 74 suppliers $242.00-$2020.00
POLY(PROPYLENE GLYCOL)-BLOCK-POLY(ETHYLENE GLYCOL)-BLOCK-POLY(PROPYLENE GLYCOL) BIS(2-AMINOPROPYL ETHER) 65605-36-9 C8H19NO3 32 suppliers $22.00-$209.00
Buffer N2 (2 x 10 ml) 7 suppliers Inquiry

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