4 research outputs found

    Hyper-cross-linked thin polydimethylsiloxane films

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    This dataset is a collection of the data used for the manuscript: 'Hyper-cross-linked thin polydimethylsiloxane films' This dataset includes all figure data and raw dat

    Evidence of a Transition Layer between the Free Surface and the Bulk

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    The free surface, a very thin layer at the interface between polymer and air, is considered the main source of the perturbations in the properties of ultrathin polymer films, i.e. nanoconfinement effects. The structural relaxation of such a layer is decoupled from the molecular dynamics of the bulk. The free surface is, in fact, able to stay liquid even below the temperature where the polymer resides in the glassy state. Importantly, this surface layer is expected to have a very sharp interface with the underlying bulk. Here, by analyzing the penetration of n-hexane into polystyrene films, we report on the existence of a transition region, not observed by previous investigations, extending for 12 nm below the free surface. The presence of such a layer permits reconciling the behavior of interfacial layers with current models and has profound implications on the performance of ultrathin membranes. We show that the expected increase in the flux of the permeating species is actually overruled by nanoconfinement.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

    Accompanying data for the manuscript: The effect of hydrocarbon pollution on polysulfone-based membranes in aqueous separations

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    This dataset contains the ellipsometry data (raw and modelled), permeation data, optical microscope and AFM images that accompany the manuscript: The effect of hydrocarbon pollution on polysulfone-based membranes in aqueous separations

    Swelling of 9 polymers commonly employed for organic solvent nanofiltration: a comprehensive dataset

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    This dataset contains all the data used for researching the swelling behaviour of 9 different polymers in a variety of solvents. The measurements were performed by employing spectroscopic ellipsometry. This dataset therefore includes the raw experimental data, the analysed data and the model used for the analysis of the data
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