NDLI: Conducting polystyrene/polyaniline blend through template-assisted emulsion polymerization

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Conducting polystyrene/polyaniline blend through template-assisted emulsion polymerization

Content Provider	CSIR - National Institute for Interdisciplinary Science and Technology (NIIScT)
Author	Sudha, J. D. Sivakala, S.
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.
Starting Page	1347
Ending Page	1354
Page Count	7
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	287
Issue Number	11
Language	English
Publisher	Springer
Publisher Date	2009-11-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Amphiphilic dopant Rheological property Self-assembling Composites Emulsion polymerization Surfactant Polyaniline
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Polymers and Plastics Colloid and Surface Chemistry Physical and Theoretical Chemistry

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