Thermal conductivity of glassy primary mono-hydroxylalcohols

Кривчиков, А. И.; Korolyuk, O. A.; Sharapova, I. V.; Romantsova, O. O.; Bermejo, F. J.; Cabrillo, C.; Fernández-Perea, Ricardo; Bustinduy, I.

doi:10.1016/j.jnoncrysol.2010.06.046

Cited by 8 publications

(4 citation statements)

References 39 publications

(50 reference statements)

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“…[12], where our measured data for v L , v T ; C l,t = 2.2 × 10 − 4 , and the SPM parameter W/k B = 2.6 K were entered. The latter agrees only approximately with the value deduced from the specific-heat: W/k B ≈ 1.8T min = 3.5 K. A more exhaustive discussion within the SPM of the thermal conductivity behavior of glassy monohydroxy alcohols (from methanol to butanol) can be found elsewhere [41].…”

Section: Discussionmentioning

confidence: 61%

Low-temperature properties of glassy and crystalline states of n-butanol

Кривчиков

Hassaine

Sharapova

et al. 2011

Journal of Non-Crystalline Solids

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Section: Discussionmentioning

confidence: 61%

Low-temperature properties of glassy and crystalline states of n-butanol

Кривчиков

Hassaine

Sharapova

et al. 2011

Journal of Non-Crystalline Solids

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“…The thermal conductivities of both alcohols have much in common: their magnitudes practically coincide at low temperatures. The tendency of increasing magnitudes of thermal conductivity with an increasing mass of an alcohol molecule, which was detected in [21], also persists in the low temperature region. As the temperature rises, κ(T) increases and passes through a maximum, which is at Т ≈ 48 K in the deuterated alcohol and at Т ≈ 51 K in the protonated one.…”

Section: Figmentioning

confidence: 63%

Deuteration effects in the thermal conductivity of molecular glasses

Кривчиков

Bermejo

Sharapova

et al. 2011

Low Temperature Physics

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The thermal conductivity κ(T) of pure deuterated ethanol has been measured under its equilibrium vapor pressure in its orientationally-ordered crystal (T = 2 K -T m ), orientational glass and the glass state (T = 2 K -T g , T g is the glass transition temperature) solid phases. The temperature dependence of the conductivity is well described by a sum of two contributions: κ(T) = κ I (T) + κ II (T), where κ I (T) account for the heat transport by acoustic phonons and κ II (T) for the heat transfer by localized high-frequency excitations respectively. The thermal conductivities of deuterated and hydrogenated ethanols are compared in different phases. The phonon scattering mechanisms in the glasses have been analyzed. In the investigated glasses the effect of complete deuteration shows up as a contribution κ II (T).

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“…Furthermore, Yomogida et al 18 used THz time‐domain spectroscopy finding that the intensity of the boson peak was higher in the secondary alcohols than in the primary ones for propanol, butanol, and pentanol. In addition, Krivchikov et al 19 have recently measured the low‐temperature thermal conductivity for a homologous series of primary monoalcohols (methanol, ethanol, 1‐propanol, and 1‐butanol) finding that it increases with the number of carbon atoms in the molecule, as well as a good agreement with the SPM predictions.…”

Section: Resultsmentioning

confidence: 99%

Calorimetric studies at low temperatures of glass‐forming 1‐butanol and 2‐butanol

Hassaine¹,

Ramos²

2011

Physica Status Solidi (a)

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We present calorimetric experiments and specific‐heat Cp(T) measurements of 1‐butanol (n‐butanol) and of one of its chemical isomers, the secondary alcohol 2‐butanol (sec‐butanol), around its glass transition Tg as well as at low temperatures (1.6–30 K). We have obtained and measured both the glass and crystalline states of 1‐butanol, and the glass state of 2‐butanol which is an even better glass former. In this work, we focus on the comparative study of the calorimetric or thermodynamic properties of the glassy states of these two isomers of butanol, determining their glass‐transition temperatures, their discontinuities in specific heat at Tg, and the corresponding enthalpy fictive temperatures. At temperatures below 10 K, both isomers present the typical broad maximum for glasses in Cp/T3, often called the boson peak, its magnitude being much larger in 2‐butanol than in 1‐butanol.

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Thermal conductivity of glassy primary mono-hydroxylalcohols

Cited by 8 publications

References 39 publications

Low-temperature properties of glassy and crystalline states of n-butanol

Low-temperature properties of glassy and crystalline states of n-butanol

Deuteration effects in the thermal conductivity of molecular glasses

Calorimetric studies at low temperatures of glass‐forming 1‐butanol and 2‐butanol

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