Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/1091
Title: Conducting polystyrene/polyaniline blend through template-assisted emulsion polymerization
Authors: Sudha, J D
Sivakala, S
Keywords: Amphiphilic dopant
Rheological property
Emulsion polymerization
Issue Date: 2009
Publisher: Springer
Citation: Colloid and Polymer Science 287(11):1347-1354;Nov 2009
Abstract: Electrically conducting polystyrene (PS)/polyaniline blends have been prepared through a one-step "anilinium-surfactant template"-assisted emulsion polymerization at room temperature. The self-assembled cylindrical An(+)PDPSA(-) micelle formed inside the PS matrix can act as a structure directing template cum dopant. Morphological observation under scanning electron microscopic studies revealed that during the progress of polymerization, the initially formed nanostructured conducting polyaniline was changed into cubic/hexagonal/lamellar particles and finally transformed into a percolated structure inside the PS matrix. Blend was further characterized by UV-Vis spectroscopy, FTIR spectroscopy, X-ray diffraction, electrical conductivity, thermal stability, dielectric property, rheological property, and electromagnetic shielding efficiency. The key finding of this work is that the conductive blend prepared through micelle-guided polymerization exhibited superior electrical conductivity (9.6 S/m) with low percolation threshold concentration (5 wt%), excellent thermal stability, electromagnetic interference (EMI) SE of 1-10 dB which makes it a promising candidate for EMI shielding and antistatic discharge matrix for the encapsulation of microelectronic devices.
ISSN: 0303-402X
Appears in Collections:2009

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