Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling Factor
The dynamics of <i>n-propanol</i> confined in regular <i>MCM-41</i> <i>matrix</i> with the pore size <i>D</i><sub>pore</sub> = 40 Å, under various matrix conditioning and sample confining conditions, using broadband dielectric spec...
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MDPI AG
2020-03-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/3/610 |
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doaj-1b5b77e3d43140fcb46f48fa0fd605a62020-11-25T02:08:43ZengMDPI AGPolymers2073-43602020-03-0112361010.3390/polym12030610polym12030610Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling FactorJosef Bartoš0Silvia Arrese-Igor1Helena Švajdlenková2Angela Kleinová3Angel Alegría4Polymer Institute of SAS, Dúbravská cesta, 9 845 41 Bratislava, SlovakiaCentro de Física de Materiales, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, SpainPolymer Institute of SAS, Dúbravská cesta, 9 845 41 Bratislava, SlovakiaPolymer Institute of SAS, Dúbravská cesta, 9 845 41 Bratislava, SlovakiaCentro de Física de Materiales, CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, SpainThe dynamics of <i>n-propanol</i> confined in regular <i>MCM-41</i> <i>matrix</i> with the pore size <i>D</i><sub>pore</sub> = 40 Å, under various matrix conditioning and sample confining conditions, using broadband dielectric spectroscopy (BDS), is reported. First, various drying procedures with the capacitor filling under <i>air</i> or <i>N<sub>2</sub></i> influence the BDS spectra of the empty <i>MCM-41</i> and the confined <i>n-PrOH/MCM-41 systems</i>, but have a little effect on the maximum relaxation time of the main process. Finally, various filling factors of <i>n-PrOH</i> <i>medium</i> in the optimally treated <i>MCM-41</i> <i>system</i> lead to unimodal or bimodal spectra interpreted in terms of the two <i>distinct</i> dynamic phases in the confined states.https://www.mdpi.com/2073-4360/12/3/610<i>short-chain alkanol</i><i>mcm-41 matrix</i>relaxation dynamicsbds<i>humidity</i>ft m-ir |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Josef Bartoš Silvia Arrese-Igor Helena Švajdlenková Angela Kleinová Angel Alegría |
| spellingShingle |
Josef Bartoš Silvia Arrese-Igor Helena Švajdlenková Angela Kleinová Angel Alegría Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling Factor Polymers <i>short-chain alkanol</i> <i>mcm-41 matrix</i> relaxation dynamics bds <i>humidity</i> ft m-ir |
| author_facet |
Josef Bartoš Silvia Arrese-Igor Helena Švajdlenková Angela Kleinová Angel Alegría |
| author_sort |
Josef Bartoš |
| title |
Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling Factor |
| title_short |
Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling Factor |
| title_full |
Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling Factor |
| title_fullStr |
Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling Factor |
| title_full_unstemmed |
Dynamics of Confined Short-Chain <i>alkanol</i> in <i>MCM-41</i> by Dielectric Spectroscopy: Effects of <i>matrix</i> and <i>system</i> Treatments and Filling Factor |
| title_sort |
dynamics of confined short-chain <i>alkanol</i> in <i>mcm-41</i> by dielectric spectroscopy: effects of <i>matrix</i> and <i>system</i> treatments and filling factor |
| publisher |
MDPI AG |
| series |
Polymers |
| issn |
2073-4360 |
| publishDate |
2020-03-01 |
| description |
The dynamics of <i>n-propanol</i> confined in regular <i>MCM-41</i> <i>matrix</i> with the pore size <i>D</i><sub>pore</sub> = 40 Å, under various matrix conditioning and sample confining conditions, using broadband dielectric spectroscopy (BDS), is reported. First, various drying procedures with the capacitor filling under <i>air</i> or <i>N<sub>2</sub></i> influence the BDS spectra of the empty <i>MCM-41</i> and the confined <i>n-PrOH/MCM-41 systems</i>, but have a little effect on the maximum relaxation time of the main process. Finally, various filling factors of <i>n-PrOH</i> <i>medium</i> in the optimally treated <i>MCM-41</i> <i>system</i> lead to unimodal or bimodal spectra interpreted in terms of the two <i>distinct</i> dynamic phases in the confined states. |
| topic |
<i>short-chain alkanol</i> <i>mcm-41 matrix</i> relaxation dynamics bds <i>humidity</i> ft m-ir |
| url |
https://www.mdpi.com/2073-4360/12/3/610 |
| work_keys_str_mv |
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