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Multi-Walled Carbon Nanotube/Polystyrene Composites Prepared by <I>in-situ</I> BulkSonochemical Polymerization
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2007
Year
EngineeringMechanical EngineeringNanostructured PolymerPolymer NanocompositesThermoplastic CompositeChemical EngineeringCarbon-based MaterialRheologyBulksonochemical PolymerizationPolymer CompositesPolymer ChemistryMaterials ScienceStyrene LeadsPolymer BlendCarbon MaterialsPolymer MeltPs PolymerizationPolymer ScienceRadical InitiationNanocomposite
Nanocomposites with multi-walled carbon nanotubes (MWNT) and polystyrene (PS) were synthesized via an in-situ bulk sonochemical polymerization under the application of ultrasonication to open pi-bonds in the MWNT, thus enhancing the PS polymerization. Sonication of vinyl monomers such as styrene leads to radical initiation of polymerization. Various characteristics such as morphology, thermal property of the synthesized PS in the presence of the MWNT in the PS/MWNT composites were examined by SEM, TEM, thermogravimetric analysis, respectively. Their rheological properties were also investigated using a stress-controlled rotational rheometer under small amplitude oscillation and steady transient shear in their melt state.