TY - JOUR
T1 - Dielectric study of supercooled triphenylphosphite and butyronitrile
T2 - Comparison with a mesoscopic model
AU - Schiener, Bernd
AU - Loidl, Alois
AU - Chamberlin, Ralph
AU - Böhmer, Roland
N1 - Funding Information:
This project was supported by the Deutsche Forschungsgemeinschafl within the Sonderforschungsbereich 262. We thank one of the referees for stimulating comments on taking measurements “on the fly”.
PY - 1996/7
Y1 - 1996/7
N2 - Dielectric relaxation has been studied in the supercooled liquids triphenylphosphite (TPP) and butyrontrile (BN). BN is relatively strong according to Angell's classification and can be characterized by a fragility index m = 47. TPP, on the other hand, appears to be the most fragile non-polymeric liquid studied so far (m = 160). The dielectric response of the two glass-formers exhibits different degrees of non-exponentiality which is analyzed in terms of a mesoscopic model of dynamically correlated domains. The relation of this model to the strong versus fragile liquid classification scheme is discussed.
AB - Dielectric relaxation has been studied in the supercooled liquids triphenylphosphite (TPP) and butyrontrile (BN). BN is relatively strong according to Angell's classification and can be characterized by a fragility index m = 47. TPP, on the other hand, appears to be the most fragile non-polymeric liquid studied so far (m = 160). The dielectric response of the two glass-formers exhibits different degrees of non-exponentiality which is analyzed in terms of a mesoscopic model of dynamically correlated domains. The relation of this model to the strong versus fragile liquid classification scheme is discussed.
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U2 - 10.1016/S0167-7322(96)90018-5
DO - 10.1016/S0167-7322(96)90018-5
M3 - Article
AN - SCOPUS:0001052566
SN - 0167-7322
VL - 69
SP - 243
EP - 251
JO - Journal of Molecular Liquids
JF - Journal of Molecular Liquids
IS - 9 SPEC. ISS.
ER -