This HTML5 document contains 48 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
n16http://linked.opendata.cz/ontology/domain/vavai/riv/typAkce/
dctermshttp://purl.org/dc/terms/
n13http://purl.org/net/nknouf/ns/bibtex#
n8http://localhost/temp/predkladatel/
n4http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n18http://linked.opendata.cz/ontology/domain/vavai/
n10https://schema.org/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
n3http://linked.opendata.cz/ontology/domain/vavai/riv/
n14http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F60461373%3A22310%2F14%3A43898509%21RIV15-MSM-22310___/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n5http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n9http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n19http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n12http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n15http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n11http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n6http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F14%3A43898509%21RIV15-MSM-22310___
rdf:type
skos:Concept n18:Vysledek
dcterms:description
In this work, (4,4'-Hexafluoroisopropylidene) diphthalic anhydride (6FDA), 2,4,6- trimethyl-1,3-diaminobenzene (DAM) and 3,5-diaminobenzoic acid (DABA) were used to synthesize copolyimides with different ratios of DAM:DABA (2:1 and 9:1) as well as polyimide 6FDA-DAM in order to check the influence of acidic group from DABA in the membrane formation process as well as in the crosslinking treatment. The main aim of crosslinking treatment is to improve the CO2 induced plasticization resistance of the membrane. Copolyimides were synthesized using two steps reaction: (i) synthesis of polyamic acid (PAA) and (ii) thermal imidization in solution. The obtained crosslinked membranes presented solvent resistance due to the transesterification of the polymer. Furthermore, it could be observed that the crosslinked membranes showed higher permeabilities for small gases (He and H2) and for bigger gases (CO2 and CH4) ermeabilities decreased slightly. It can be due to the densification of the membrane during the thermal treatment. However, this treatment presents highly promising results for H2 recovery in syngas production or extraction of hydrogen from petroleum naphtha cracking streams. In this work, (4,4'-Hexafluoroisopropylidene) diphthalic anhydride (6FDA), 2,4,6- trimethyl-1,3-diaminobenzene (DAM) and 3,5-diaminobenzoic acid (DABA) were used to synthesize copolyimides with different ratios of DAM:DABA (2:1 and 9:1) as well as polyimide 6FDA-DAM in order to check the influence of acidic group from DABA in the membrane formation process as well as in the crosslinking treatment. The main aim of crosslinking treatment is to improve the CO2 induced plasticization resistance of the membrane. Copolyimides were synthesized using two steps reaction: (i) synthesis of polyamic acid (PAA) and (ii) thermal imidization in solution. The obtained crosslinked membranes presented solvent resistance due to the transesterification of the polymer. Furthermore, it could be observed that the crosslinked membranes showed higher permeabilities for small gases (He and H2) and for bigger gases (CO2 and CH4) ermeabilities decreased slightly. It can be due to the densification of the membrane during the thermal treatment. However, this treatment presents highly promising results for H2 recovery in syngas production or extraction of hydrogen from petroleum naphtha cracking streams.
dcterms:title
Effects of thermal crosslinking treatment on gas separation performance and stability of polymeric membranes Effects of thermal crosslinking treatment on gas separation performance and stability of polymeric membranes
skos:prefLabel
Effects of thermal crosslinking treatment on gas separation performance and stability of polymeric membranes Effects of thermal crosslinking treatment on gas separation performance and stability of polymeric membranes
skos:notation
RIV/60461373:22310/14:43898509!RIV15-MSM-22310___
n3:aktivita
n19:I
n3:aktivity
I
n3:dodaniDat
n6:2015
n3:domaciTvurceVysledku
n4:4404300 n4:3616347 n4:2813998
n3:druhVysledku
n15:D
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
13793
n3:idVysledku
RIV/60461373:22310/14:43898509
n3:jazykVysledku
n12:eng
n3:klicovaSlova
carbon dioxide; methane; crosslinking; separation; membrane; DABA; DAM; 6FDA
n3:klicoveSlovo
n5:membrane n5:crosslinking n5:carbon%20dioxide n5:separation n5:DABA n5:DAM n5:6FDA n5:methane
n3:kontrolniKodProRIV
[D54AC0972FA2]
n3:mistoKonaniAkce
Praha
n3:mistoVydani
Praha
n3:nazevZdroje
Proceedings of the 21st International Congress of Chemical and Process Engineering CHISA 2014
n3:obor
n11:CD
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n6:2014
n3:tvurceVysledku
Pavel, Hrabanek Martin, Violeta Sysel, Petr Fíla, Vlastimil
n3:typAkce
n16:EUR
n3:zahajeniAkce
2014-08-23+02:00
s:numberOfPages
11
n13:hasPublisher
Česká společnost chemického inženýrství
n10:isbn
978-80-02-02555-9
n8:organizacniJednotka
22310