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Description
| - The utilization of the constant ratio cyclic temperature history, where q(+)/q(-) = const., was examined with respect to physical aging studies. In particular, determination of the apparent activation energy of enthalpy relaxation from constant ratio (CR) cycles was discussed. A novel equation fully utilizing the advantages of CR cycles was derived - it is based on shift of temperature corresponding to the maximum of relaxation peak T-p with the applied heating rate: -Delta h(*)/R = din(q(+))/dT(p)(-1). The equation was extensively tested for all types of structural relaxation behavior; it was proven to be highly accurate and independent from most data-distortive effects. In addition, it was shown that the unique shape of CR cycles curves can be utilized for the identification of certain data-distortive effects - thermal lags, imprecise heating/cooling rates or incomplete achievement of a true glassy state during cooling. Correspondingly, corrections for these data-distortive effects can be applied to other physical aging measurements performed for the given glassy material and DSC instrument.
- The utilization of the constant ratio cyclic temperature history, where q(+)/q(-) = const., was examined with respect to physical aging studies. In particular, determination of the apparent activation energy of enthalpy relaxation from constant ratio (CR) cycles was discussed. A novel equation fully utilizing the advantages of CR cycles was derived - it is based on shift of temperature corresponding to the maximum of relaxation peak T-p with the applied heating rate: -Delta h(*)/R = din(q(+))/dT(p)(-1). The equation was extensively tested for all types of structural relaxation behavior; it was proven to be highly accurate and independent from most data-distortive effects. In addition, it was shown that the unique shape of CR cycles curves can be utilized for the identification of certain data-distortive effects - thermal lags, imprecise heating/cooling rates or incomplete achievement of a true glassy state during cooling. Correspondingly, corrections for these data-distortive effects can be applied to other physical aging measurements performed for the given glassy material and DSC instrument. (en)
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Title
| - Utilization of %22q(+)/q(-) = const.%22 DSC cycles for physical aging studies
- Utilization of %22q(+)/q(-) = const.%22 DSC cycles for physical aging studies (en)
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skos:prefLabel
| - Utilization of %22q(+)/q(-) = const.%22 DSC cycles for physical aging studies
- Utilization of %22q(+)/q(-) = const.%22 DSC cycles for physical aging studies (en)
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skos:notation
| - RIV/00216275:25310/14:39898152!RIV15-GA0-25310___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216275:25310/14:39898152
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Enthalpy relaxation; Data-distortive effects; Activation energy; Glass transition (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1016/j.eurpolymj.2014.07.039
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http://localhost/t...ganizacniJednotka
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