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Zimny, Sara; Magdalena Tarnacka; Monika Geppert-Rybczyńska; Ewa Kamińska; Kamil Kamiński, 2025, "Research data for manuscript: ‘The role of density fluctuations and interfacial energy in controlling the dynamics of the polymers confined within the anodic aluminum oxide’", https://doi.org/10.18150/O0K5UY, RepOD, V1
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The dataset contains raw dielectric and calorimetric measurement data, presented entitled “The Role of Density Fluctuations and Interfacial Energy in Controlling the Dynamics of the Polymers Confined within the Anodic Aluminum Oxide”. In this work, we investigated the effect of confinement on the behaviour of a series of three polymer brushes based on poly(mercaptopropylmethylsiloxane, PMMS), grafted with various acrylates monomers of varying lengths of alkyl chain infiltrated within AAO mesoporous membranes of d = 10 nm, and have been studied with the use of broadband dielectric spectroscopy (BDS) as well as differential scanning calorimetry (DSC). The collected results were compiled with the data available in the literature for the other confined polymers to establish correlations between the glass transition depression (a difference in the glass transition temperatures between the bulk and infiltrated polymers defined as ΔTg,) and two (macroscopic) properties of the bulk materials, i.e., interfacial energy (γSL, quantifying the polymer/substrate interfacial interactions) and the pressure coefficient of the glass transition temperature (dTg/dp, describing the sensitivity of the segmental process to density fluctuations) to get new insights to a general relation allowing quantifying the magnitude of the confinement effect.
dielectric spectroscopy, confinement, calorimetric studies, grafted polymer
CC0 Creative Commons Zero 1.0
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