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| rdf:type
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| Description
| - Byla změřena infračervená a Ramanova spektra čtyř typů fólií ultra-vysokomolekulárního polyhydroxybutyrátu (UHMW-PHB): fólie odlitá z roztoku, fólie tažená za studena, fólie tažená ve dvou krocích, fólie tažená za horka. Byly provedeny kvantově chemické výpočty oktamerových modelů UHMW-PHB s .alpha.-helixovou konformací (.alpha.-forma) a s rovinnou zigzag konformací (.beta.-forma). Detailní porovnání pozorovaných a vypočítaných hodnot frekvencí a intenzit Ramanových pásů .beta.-formy ukazuje, že obsah .beta.-formy je relativně malý a že .beta.-struktura vykazuje menší uspořádání. (cs)
- Infrared (IR) and Raman spectra were measured for four kinds of ultra-high-molecular-weight poly[(R)-3-hydroxybutyrate] (UHMW-PHB) films: a solvent-cast film, a cold-drawn film, a two-step-drawn film, and a hot-drawn film. Quantum chemical calculations were made for octamer models of UHMW-PHB with a helix conformation (.alpha.-form) and a planar zigzag conformation (.beta.-form). The infrared and Raman spectra of two-step-drawn film also indicate that it has more amorphous parts than other films. When the two-step-drawn film was further heated up to 130 °C and then cooled down to room temperature, the above additional bands due to the .beta.-form disappeared in the Raman spectra, suggesting that the .beta.-form is less stable than .alpha.-form.
- Infrared (IR) and Raman spectra were measured for four kinds of ultra-high-molecular-weight poly[(R)-3-hydroxybutyrate] (UHMW-PHB) films: a solvent-cast film, a cold-drawn film, a two-step-drawn film, and a hot-drawn film. Quantum chemical calculations were made for octamer models of UHMW-PHB with a helix conformation (.alpha.-form) and a planar zigzag conformation (.beta.-form). The infrared and Raman spectra of two-step-drawn film also indicate that it has more amorphous parts than other films. When the two-step-drawn film was further heated up to 130 °C and then cooled down to room temperature, the above additional bands due to the .beta.-form disappeared in the Raman spectra, suggesting that the .beta.-form is less stable than .alpha.-form. (en)
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| Title
| - Formation and stability of .beta.-structure in biodegradable ultra-high-molecular-weight poly(3-hydroxybutyrate) by infrared, Raman, and quantum chemical calculation studies
- Studium vzniku a stability .beta.-struktury v biodegradovatelném ultra-vysokomolekulárním polyhydroxybutyrátu pomocí infračervené a Ramanovy spektroskopie a kvantově chemických výpočtů (cs)
- Formation and stability of .beta.-structure in biodegradable ultra-high-molecular-weight poly(3-hydroxybutyrate) by infrared, Raman, and quantum chemical calculation studies (en)
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| skos:prefLabel
| - Formation and stability of .beta.-structure in biodegradable ultra-high-molecular-weight poly(3-hydroxybutyrate) by infrared, Raman, and quantum chemical calculation studies
- Studium vzniku a stability .beta.-struktury v biodegradovatelném ultra-vysokomolekulárním polyhydroxybutyrátu pomocí infračervené a Ramanovy spektroskopie a kvantově chemických výpočtů (cs)
- Formation and stability of .beta.-structure in biodegradable ultra-high-molecular-weight poly(3-hydroxybutyrate) by infrared, Raman, and quantum chemical calculation studies (en)
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| skos:notation
| - RIV/61389013:_____/07:00081233!RIV07-AV0-61389013
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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
| - P(GA203/05/0425), Z(AV0Z40500505)
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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
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61389013:_____/07:00081233
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - ultra-high-molecular-weight poly(hydroxybutyrate); .beta.-form; Raman spectroscopy (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| |
| 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
| - Dybal, Jiří
- Ozaki, Y.
- Iwata, T.
- Sato, H.
- Murakami, R.
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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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