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Electro-Responsive Polystyrene Shape Memory Polymer Nanocomposites

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Microstructure, thermo-mechanical, electrical properties and shape recovery efficiency of carbon nano-particles (CNPs) enhanced polystyrene (PS) nanocomposites were characterized. Dynamic mechanical thermal analysis showed an increase in glass transition temperature (T g ) and enhancement of the storage modulus for the polystyrene (PS) composites with the addition of CNPs. Instrumental nanoindentation experiments revealed micro-scale enhancement of mechanical properties by introducing the CNPs into the polymer matrix. Electrical conductivity and dielectric properties of the nanocomposites were dependent on CNP concentrations, testing frequency and temperature. Electro-triggering recovery of a microcantilever made from the CNP/PS shape memory nanocomposite was has been demonstrated and the recovery rates were studied as a function of applied voltage.
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Keywords: ELECTRO-RESPONSIVE; MICROMECHANICAL; NANOCOMPOSITES; SHAPE MEMORY POLYMER

Document Type: Short Communication

Publication date: 01 August 2012

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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