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Verhandlungen
Verhandlungen
DPG

Berlin 2012 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 5: Soft Matter I

DY 5.6: Talk

Monday, March 26, 2012, 16:15–16:30, MA 004

Molecular dynamics and morphology in confined 4-heptan-4-isothiocyanatobiphenyl liquid crystals — •Malgorzata Jasiurkowska1, Wilhelm Kossack1, Roxana Enea1, Ciprian Iacob1, Wycliffe Kipnusu1, Periklis Papadopoulos2, Joshua Sangoro1, Maria Massalska-Arodz3, and Friedrich Kremer11Institute of Experimental Physics I, University of Leipzig, Linnestr. 5, 04103 Leipzig, Germany — 2Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany — 3The Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland

Molecular dynamics and orientational order of 4-heptan-4-isothiocyanatobiphenyl (7BT) confined in non-intersecting pores of mean diameters from 4 nm to 10.5 nm are studied by a combination of Broadband Dielectric and Fourier-Transform Infrared Spectroscopy. In contrast to well-known bulk dielectric properties of nBTs, confinement leads to modification of the molecular dynamics. Infrared Transition Moment Orientational Analysis reveals different molecular arrangement in pores of diameters 10.5 nm compared to the molecules enclosed in 4 nm and 6 nm diameter pores

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