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• W2050871298 abstract "Abstract Based on some of our earlier dielectric relaxation studies during structural relaxation of molecular glasses, we describe certain features specific to the change in the Johari–Goldstein (JG) relaxation and examine their consequences for understanding of the molecular mechanism of the JG process. The parameter for the distribution of relaxation times increases slightly (loss curve becomes narrower) and the relaxation rate either remains constant or increases on ageing. In all cases, contribution to permittivity from the JG relaxation, ΔeJG decreases with time, with a rate constant k according to a relation, ΔeJG (t) = ΔeJG (t → ∞) − [ΔeJG (t = 0) − ΔeJG ( t → ∞)][1− exp[−(kt)]. This reduces to an equation of the type ΔeJG(t) = a + b exp(− kt) where a and b are constants of the glass as well are dependent on the thermal history of quenching of the glassy system. On decreasing the temperature, the relaxation rate for a rigid molecular glass follows the Arrhenius equation in a range that extends from liquid to glass, but deviates from it as a result of structural relaxation of the two alcohols, while the distribution of relaxation times decreases. The variation of ΔeJG with temperature shows an increase in slope on heating through Tg or else a deep and broad minimum before Tg is reached and the slope increases are remarkably similar to the changes observed for volume and thermodynamic properties on heating a glass. These findings need to be considered for a molecular mechanism in the potential energy view of JG relaxation, in analyzing the physical ageing of the α-relaxation process. It is argued that a recent suggestion for considering the JG relaxation within the picture of potential energy landscape may not be inconsistent with its molecular origin and dynamics in localized regions of structurally inhomogeneous glass. But there is still need to determine how the apparent dynamic heterogeneity evident from the broad distribution of the JG relaxation times can be reconciled with the dynamic heterogeneity used to explain less-broad spectra of the α − relaxation process." @default.
• W2050871298 created "2016-06-24" @default.
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• W2050871298 date "2011-02-01" @default.
• W2050871298 modified "2023-10-16" @default.
• W2050871298 title "Physical ageing and the Johari–Goldstein relaxation in molecular glasses" @default.
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• W2050871298 cites W1967303178 @default.
• W2050871298 cites W1968601314 @default.
• W2050871298 cites W1969024107 @default.
• W2050871298 cites W1973252979 @default.
• W2050871298 cites W1973755169 @default.
• W2050871298 cites W1975672909 @default.
• W2050871298 cites W1979906754 @default.
• W2050871298 cites W1980078696 @default.
• W2050871298 cites W1981195789 @default.
• W2050871298 cites W1987206050 @default.
• W2050871298 cites W1988492973 @default.
• W2050871298 cites W1989901844 @default.
• W2050871298 cites W1990140100 @default.
• W2050871298 cites W1993676543 @default.
• W2050871298 cites W2000567534 @default.
• W2050871298 cites W2003034637 @default.
• W2050871298 cites W2011348897 @default.
• W2050871298 cites W2013956358 @default.
• W2050871298 cites W2019802720 @default.
• W2050871298 cites W2021641921 @default.
• W2050871298 cites W2023317610 @default.
• W2050871298 cites W2024154017 @default.
• W2050871298 cites W2031907933 @default.
• W2050871298 cites W2033120802 @default.
• W2050871298 cites W2033207214 @default.
• W2050871298 cites W2036943288 @default.
• W2050871298 cites W2037729701 @default.
• W2050871298 cites W2039040471 @default.
• W2050871298 cites W2039545306 @default.
• W2050871298 cites W2039566876 @default.
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• W2050871298 cites W2049626269 @default.
• W2050871298 cites W2049936177 @default.
• W2050871298 cites W2049984032 @default.
• W2050871298 cites W2050454334 @default.
• W2050871298 cites W2051116773 @default.
• W2050871298 cites W2052833913 @default.
• W2050871298 cites W2058534458 @default.
• W2050871298 cites W2058741714 @default.
• W2050871298 cites W2062433095 @default.
• W2050871298 cites W2065532052 @default.
• W2050871298 cites W2066529872 @default.
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• W2050871298 cites W2074407154 @default.
• W2050871298 cites W2075894924 @default.
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• W2050871298 cites W2082151051 @default.
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• W2050871298 cites W2087214086 @default.
• W2050871298 cites W2087649189 @default.
• W2050871298 cites W2088654232 @default.
• W2050871298 cites W2088826039 @default.
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• W2050871298 cites W3105033620 @default.
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• W2050871298 doi "https://doi.org/10.1016/j.jnoncrysol.2010.07.067" @default.
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