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Description
| - Zesítěný polymer EnCatTM 40 (polymočovina) byl zkoumán v mikrometrickém (SEM) i nanometrickém měřítku ((ISEC, ESR, 13C CP MAS NMR) a to jak v suchém stavu (ESEM, 13C CP MAS NMR), tak i ve zbobtnalém stavu (ISEC, ESR, 13C CP MAS NMR). Po zbobtnání v THF nebo DMF, byly v polymeru pomocí ISEC zjištěny nanoporézní domény s póry o velikosti cca 1,2 nm. ESR měření rotační mobility vhodné sondy v prostředí THF, DMF, MeOH and PhCH3 kvalitativně potvrdila existenci nanoporozity v EnCatTM 40 zbobtnalém v MeOH a v PhCH3. Naše mnohonásobná analýza prokázala absenci jakékoli porozity ve vodném prostředí. (cs)
- The cross-linked polymer EnCatTM 40 (polyurea) is investigated on the micro-(ESEM) and nanometer scale (ISEC, ESR, 13C CP MAS NMR) both in the dry (ESEM, 13C CP MAS NMR) and in the swollen state (ISEC, ESR, 13C CP MAS NMR). After swelling with THF or DMF, nanoporous domains featured by ca. 1.2 nm pores are clearly detected with ISEC. ESR analysis based on the evaluation of the rotational mobility of a suitable spin probe dissolved in THF, DMF, MeOH and PhCH3 as swelling media, does qualitatively confirm the presence of nanoporosity also in MeOH- and PhCH3-swollen EnCatTM 40. Our manifold analysis reveals the lack of any detectable nanoporosity in water.
- The cross-linked polymer EnCatTM 40 (polyurea) is investigated on the micro-(ESEM) and nanometer scale (ISEC, ESR, 13C CP MAS NMR) both in the dry (ESEM, 13C CP MAS NMR) and in the swollen state (ISEC, ESR, 13C CP MAS NMR). After swelling with THF or DMF, nanoporous domains featured by ca. 1.2 nm pores are clearly detected with ISEC. ESR analysis based on the evaluation of the rotational mobility of a suitable spin probe dissolved in THF, DMF, MeOH and PhCH3 as swelling media, does qualitatively confirm the presence of nanoporosity also in MeOH- and PhCH3-swollen EnCatTM 40. Our manifold analysis reveals the lack of any detectable nanoporosity in water. (en)
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Title
| - Cross-Linked Poly-Vinyl Polymers versus Polyureas as Designed Supports for Catalytically Active M0 Nanoclusters. Part I. Nanometer Scale Structure of the Polyurea Support EnCatTM 40
- Cross-Linked Poly-Vinyl Polymers versus Polyureas as Designed Supports for Catalytically Active M0 Nanoclusters. Part I. Nanometer Scale Structure of the Polyurea Support EnCatTM 40 (en)
- Srovnání vlastností zesítěných vinylových polymerů a polymočoviny jako optimalizovatelných nosičů katalyticky aktivních kovových nanoklastrů. Část I. Nanometrická struktura polymočovinového nosiče EnCatTM 40 (cs)
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skos:prefLabel
| - Cross-Linked Poly-Vinyl Polymers versus Polyureas as Designed Supports for Catalytically Active M0 Nanoclusters. Part I. Nanometer Scale Structure of the Polyurea Support EnCatTM 40
- Cross-Linked Poly-Vinyl Polymers versus Polyureas as Designed Supports for Catalytically Active M0 Nanoclusters. Part I. Nanometer Scale Structure of the Polyurea Support EnCatTM 40 (en)
- Srovnání vlastností zesítěných vinylových polymerů a polymočoviny jako optimalizovatelných nosičů katalyticky aktivních kovových nanoklastrů. Část I. Nanometrická struktura polymočovinového nosiče EnCatTM 40 (cs)
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skos:notation
| - RIV/67985858:_____/07:00091364!RIV08-AV0-67985858
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http://linked.open.../vavai/riv/strany
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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
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/67985858:_____/07:00091364
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - esr spectroscopy; functional resins; nanopores (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Molecular Catalysis A-Chemical
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Jeřábek, Karel
- Corain, B.
- Maniero, A. L.
- Zoleo, A.
- Bolfa, C.
- Pears, D.
- Sassi, A. S.
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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is http://linked.open...avai/riv/vysledek
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