In this work a polystyrene (PS) / polymethylphenylsiloxane (PMPS) blend system was studied as a matrix for CNT nanocomposites. The study of these polymer blend nanocomposites was performed using thermal analysis techniques, such as DSC, as well as surface characterization and rheology. While an excellent dispersion of CNTs by polydimethylsiloxane (PDMS) was reported before, this is to our knowledge the first study on the related PMPS, which seems to show similar CNT-dispersing properties Unlike the strongly immiscible behaviour known for PS/PDMS blends however, the PS/PMPS system showed partial miscibility. While this means that phase separated morphologies can still be attained, which can be used for volume exclusion, this also makes it possible to develop homogeneous blends where PMPS seems to act more as a CNT compatibiliser. Clear proof of mechanical percolation was found for such systems, and conductivity studies are underway.
|Title of host publication||18th Annual meeting of the Belgian Polymer Group, BPG-2011, Houffalize, Belgium|
|Publisher||Belgian Polymer Group|
|Publication status||Published - 12 May 2011|
- Carbon Nanotubes
- Partial Miscibility
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Van den Brande, Niko (Recipient), 13 May 2011
Prize: Prize (including medals and awards)