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Cluster kinetics model for mixtures of glassformers
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10.1063/1.2770735
/content/aip/journal/jcp/127/14/10.1063/1.2770735
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/14/10.1063/1.2770735

Figures

Image of FIG. 1.
FIG. 1.

Dielectric relaxation time vs scaled temperature for four sorbitol-glycerol mixtures and for pure sorbitol. Experimental data are designated by symbols, (◆), (●), (∎), (▴), and (▾), calculated values by (—), and the regression of experimental data for pure sorbitol with Eq. (2) by a ---.

Image of FIG. 2.
FIG. 2.

Dielectric relaxation time vs scaled temperature for three sorbitol-glycerol mixtures and for pure glycerol. Experimental data are designated by symbols, (●), (∎), (▴), and (▾), calculated values by (—), and the regression of experimental data for pure glycerol with Eq. (2) by a ---.

Image of FIG. 3.
FIG. 3.

Dielectric relaxation time vs temperature for sorbitol-xylitol mixtures and for pure sorbitol and xylitol. Experimental data are designated by symbols (▾), (●), (∎), (▴), and (◆), calculated values by (—), and the regression of experimental data for pure sorbitol and xylitol with Eq. (6) by ---.

Image of FIG. 4.
FIG. 4.

Dielectric relaxation time vs temperature for PECH-PVME mixtures and for pure PECH and PVME. Experimental data are designated by symbols (▾), (●), (∎), (▴), and (◆), calculated values by (—), and the regression of experimental data for pure PECH and PVME with Eq. (6) by ---.

Tables

Generic image for table
Table I.

For the sorbitol-glycerol mixture (Ref. 13), parameters and were evaluated for seven compositions according to Eqs. (4) and (5), respectively. The mole fraction of sorbitol is . Ranges of were calculated from the upper and lower values of for mixture components. Values of and were determined by linear interpolation at of experimental data (Refs. 13 and 67–69) (except when designated by an , indicating a slight linear extrapolation of the experimental data). Values of were determined from ambient pressure experimental data. Experimental data also supplied values of . values were determined by comparison of calculated dielectric relaxation times for the mixture with the experimental data. For pure components (Refs. 67–69), and , values reflect the goodness of fit of Eqs. (1) and (2), and ranges are from the standard error of the regression.

Generic image for table
Table II.

Parameters were evaluated for three compositions of a sorbitol-xylitol mixture (Refs. 23 and 48) by Eq. (4). The mole fraction of xylitol is . Ranges of were calculated from the upper and lower values of for mixture components. Values of were determined by linear interpolation at of ambient pressure experimental data (Refs. 23, 48, and 70). Experimental data also supplied values of . values were determined by comparison of calculated dielectric relaxation times for the mixture with the experimental data. For pure xylitol (Ref. 70), , values reflect the goodness of fit of Eq. (6), and ranges are from the standard error of the regression.

Generic image for table
Table III.

Parameters were evaluated for three compositions of a PECH-PVME mixture (Ref. 45) according to Eq. (4). The weight fraction of PECH is . Ranges of were calculated from the upper and lower values of for mixture components. Values of were determined by linear interpolation at of ambient pressure experimental data (Ref. 45). Experimental data also supplied values of . values were determined by comparison of calculated dielectric relaxation times for the mixture with the experimental data. For pure components (Ref. 45), , values reflect the goodness of fit of Eq. (6), and ranges are from the standard error of the regression.

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/content/aip/journal/jcp/127/14/10.1063/1.2770735
2007-10-09
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Cluster kinetics model for mixtures of glassformers
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/14/10.1063/1.2770735
10.1063/1.2770735
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