Partially miscible polystyrene/polymethylphenylsiloxane blends for nanocomposites |
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| Authors: | Niko Van den Brande Cor Koning Paul Geerlings Gregory Van Lier Guy Van Assche Bruno Van Mele |
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| Institution: | (1) Physical Chemistry and Polymer Science (FYSC), Free University of Brussels, Pleinlaan 2, 1050 Brussels, Belgium;(2) Research Group General Chemistry (ALGC), Free University of Brussels, Pleinlaan 2, 1050 Brussels, Belgium;(3) Polymer Chemistry, Eindhoven University of Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands; |
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| Abstract: | The potential of polystyrene/polymethylphenylsiloxane (PS/PMPS) blends as a matrix for nanocomposites is investigated. It
was proven by dynamic rheometry and conductivity measurements that PMPS effectively disperses carbon nanotubes, as was already
known for polydimethylsiloxane (PDMS). The phase behaviour of PS/PMPS blends was investigated using differential scanning
calorimetry or modulated temperature differential scanning calorimetry. The blends were found to exhibit partial miscibility,
in contrast to the known immiscible behaviour of PS/PDMS blends. A miscibility window exists for PS/PMPS blends containing
less than approximately 10 wt% PMPS. |
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