Gas permeation properties of poly(amide-6-b-ethylene oxide)-silica hybrid membranes (Record no. 40660)

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control field MX-MdCICY
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control field 20250625124640.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-6316
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245 10 - TITLE STATEMENT
Title Gas permeation properties of poly(amide-6-b-ethylene oxide)-silica hybrid membranes
490 0# - SERIES STATEMENT
Volume/sequential designation Journal of Membrane Science , 193(2), p.209-225, 2001
520 3# - SUMMARY, ETC.
Summary, etc. The organic-inorganic hybrids of poly(amide-6-b-ethylene oxide)(PEBAX®)and silica were prepared via in situ polymerization of tetraethoxysilane (TEOS)using the sol-gel process and their gas transport properties were studied. The nanodispersed inorganic network produced in the organic matrix was characterized by solid-state 29Si NMR, Fourier transform infrared (FT-IR), dynamic light scattering (DLS)and field emission scanning electron microphotography (FE-SEM). Wide angle X-ray diffraction (WAXD)patterns and differential scanning calorimetry (DSC)thermograms of PEBAX® and hybrid materials revealed that the incorporation of silica induced the structural modification of polymer chains. Gas permeation measurements were accomplished at various temperatures with He, CO2, O2 and N2. These hybrid membranes exhibited higher gas permeability coefficients and permselectivities than PEBAX®, particularly at an elevated temperature. Activation energy of CO2 permeation through the hybrid membranes decreased due to the large contribution of heat of sorption while that of N2 increased resulting from the increase of tortuosity and restricted chain mobility. All these results were explained by the increase of sorption ability of hybrids, attributed to the strong interaction between CO2 molecules and SiO2 domains, additional sorption sites in polyamide block in PEBAX® and the organic/inorganic interphase
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PEBAX
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SILICA
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SOL-GEL PROCESS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element GAS PERMEATION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element MEMBRANE
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Kim, J.H.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Lee, Y.M.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1Edm31_3zVDDZUD_CHEpOURJgTBV_0QF-/view?usp=drivesdk">https://drive.google.com/file/d/1Edm31_3zVDDZUD_CHEpOURJgTBV_0QF-/view?usp=drivesdk</a>
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-6316 25.06.2025 25.06.2025 Documentos solicitados