Herein, we examined the effect of finite size and wettability on the structural dynamics and the molecular arrangement of the propylene carbonate derivative, (S)-(−)-4-methoxymethyl-1,3-dioxolan-2-one (assigned as s-methoxy-PC), incorporated into alumina and silica porous templates of pore diameters d = 4 nm–10 nm using Raman and broadband dielectric spectroscopy, differential scanning calorimetry, and x-ray diffraction. It was demonstrated that only subtle changes in the molecular organization and short-range order of confined s-methoxy-PC molecules were detected. Yet, a significant deviation of the structural dynamics and depression of the glass transition temperatures, Tg, was found for all confined samples with respect to the bulk material. Interestingly, these changes correlate with neither the finite size effects nor the interfacial energy but seem to vary with wettability, generally. Nevertheless, for s-methoxy-PC infiltrated into native (more hydrophilic) and modified (more hydrophobic) silica templates of the same nanochannel size (d = 4 nm), a change in the dynamics and Tg was negligible despite a significant variation in wettability. These results indicated that although wettability might be a suitable variable to predict alteration of the structural dynamics and depression of the glass transition temperature, other factors, i.e., surface roughness and the density packing, might also have a strong contribution to the observed confinement effects.
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14 February 2021
Research Article|
February 08 2021
Local structure and molecular dynamics of highly polar propylene carbonate derivative infiltrated within alumina and silica porous templates
Special Collection:
Fluids in Nanopores
Magdalena Tarnacka
;
Magdalena Tarnacka
a)
1
Institute of Physics, University of Silesia in Katowice
, 75 Pułku Piechoty 1, 41-500 Chorzow, Poland
2
Silesian Center of Education and Interdisciplinary Research
, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland
a)Authors to whom correspondence should be addressed: magdalena.tarnacka@us.edu.pl; magdalena.tarnacka@smcebi.edu.pl; kamil.kaminski@us.edu.pl; and kamil.kaminski@smcebi.edu.pl
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Monika Geppert-Rybczyńska
;
Monika Geppert-Rybczyńska
3
Institute of Chemistry, University of Silesia in Katowice
, Szkolna 9, 40-007 Katowice, Poland
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Mateusz Dulski
;
Mateusz Dulski
2
Silesian Center of Education and Interdisciplinary Research
, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland
4
Institute of Materials Science, University of Silesia in Katowice
, 75 Pułku Piechoty 1, 41-500 Chorzow, Poland
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Joanna Grelska
;
Joanna Grelska
1
Institute of Physics, University of Silesia in Katowice
, 75 Pułku Piechoty 1, 41-500 Chorzow, Poland
2
Silesian Center of Education and Interdisciplinary Research
, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland
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Karolina Jurkiewicz
;
Karolina Jurkiewicz
1
Institute of Physics, University of Silesia in Katowice
, 75 Pułku Piechoty 1, 41-500 Chorzow, Poland
2
Silesian Center of Education and Interdisciplinary Research
, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland
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Katarzyna Grzybowska;
Katarzyna Grzybowska
1
Institute of Physics, University of Silesia in Katowice
, 75 Pułku Piechoty 1, 41-500 Chorzow, Poland
2
Silesian Center of Education and Interdisciplinary Research
, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland
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Kamil Kamiński
;
Kamil Kamiński
a)
1
Institute of Physics, University of Silesia in Katowice
, 75 Pułku Piechoty 1, 41-500 Chorzow, Poland
2
Silesian Center of Education and Interdisciplinary Research
, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland
a)Authors to whom correspondence should be addressed: magdalena.tarnacka@us.edu.pl; magdalena.tarnacka@smcebi.edu.pl; kamil.kaminski@us.edu.pl; and kamil.kaminski@smcebi.edu.pl
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Marian Paluch
Marian Paluch
1
Institute of Physics, University of Silesia in Katowice
, 75 Pułku Piechoty 1, 41-500 Chorzow, Poland
2
Silesian Center of Education and Interdisciplinary Research
, 75 Pułku Piechoty 1A, 41-500 Chorzow, Poland
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a)Authors to whom correspondence should be addressed: magdalena.tarnacka@us.edu.pl; magdalena.tarnacka@smcebi.edu.pl; kamil.kaminski@us.edu.pl; and kamil.kaminski@smcebi.edu.pl
Note: This paper is part of the JCP Special Topic on Fluids in Nanopores.
J. Chem. Phys. 154, 064701 (2021)
Article history
Received:
December 10 2020
Accepted:
January 18 2021
Citation
Magdalena Tarnacka, Monika Geppert-Rybczyńska, Mateusz Dulski, Joanna Grelska, Karolina Jurkiewicz, Katarzyna Grzybowska, Kamil Kamiński, Marian Paluch; Local structure and molecular dynamics of highly polar propylene carbonate derivative infiltrated within alumina and silica porous templates. J. Chem. Phys. 14 February 2021; 154 (6): 064701. https://doi.org/10.1063/5.0040150
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