Dielectric investigations of the molecular dynamics of propanediol in mesoporous silica materials

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • A. Huwe
  • M. Arndt
  • F. Kremer
  • C. Haggenmüller
  • P. Behrens

Externe Organisationen

  • Universität Leipzig
  • Ludwig-Maximilians-Universität München (LMU)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)9699-9701
Seitenumfang3
FachzeitschriftJournal of Chemical Physics
Jahrgang107
Ausgabenummer22
PublikationsstatusVeröffentlicht - 8 Dez. 1997
Extern publiziertJa

Abstract

Broadband dielectric spectroscopy (10-2-1.8×109 Hz) is employed to study the molecular dynamics of the glass-forming hydrogen-bonded liquid propanediol confined to mesoporous M41S silica materials having two different topologies. It is shown that the dynamic glass transition takes place in the mesoporous system (diameter 2.7 nm). With respect to the bulk its relaxation rates are decreased when approaching the calorimetric glass transition. Silanization of the inner surfaces acts as a molecular lubrication and makes the molecular dynamics of the confined liquid comparable to the bulk.

ASJC Scopus Sachgebiete

Zitieren

Dielectric investigations of the molecular dynamics of propanediol in mesoporous silica materials. / Huwe, A.; Arndt, M.; Kremer, F. et al.
in: Journal of Chemical Physics, Jahrgang 107, Nr. 22, 08.12.1997, S. 9699-9701.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Huwe A, Arndt M, Kremer F, Haggenmüller C, Behrens P. Dielectric investigations of the molecular dynamics of propanediol in mesoporous silica materials. Journal of Chemical Physics. 1997 Dez 8;107(22):9699-9701. doi: 10.1063/1.475265
Huwe, A. ; Arndt, M. ; Kremer, F. et al. / Dielectric investigations of the molecular dynamics of propanediol in mesoporous silica materials. in: Journal of Chemical Physics. 1997 ; Jahrgang 107, Nr. 22. S. 9699-9701.
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