polypyrrole – Page 2 – TechConnect Briefs

Environmental Friendly Synthesis of Polypyrrole within polymeric Nanotemplates-mechanism of polypyrrole synthesis

Li X., Chan A., Groves M., Malardier-Jugroot C., Royal Military College of Canada, CA

This paper describes an innovative way to synthesize polypyrrole using self-assembly nano-templates poly (isobutylene-alt-maleic anhydride) (IMA) or poly (styrene-alt-maleic anhydride) (SMA). Understanding the details of the novel synthesis in great details would provide us profound [...]

Preparation and Electrochemical Characterization of Porous SWNT-PPy Nanocomposite Sheets for Supercapacitor Applications

Oh J., Kozlov M.E., Baughman R.H., University of Texas at Dallas, US

Highly porous sheets comprised of Single Walled Carbon Nanotubes and doped polypyrrole (SWNT-PPy) were prepared by vacuum filtration of SWNT-PPy methanol dispersions. The employed preparation procedure is an extension of conventional bucky-paper fabrication method for [...]

Synthesis and characterization of polypyrrole nanowires using alternating amphiphilic copolymer nanotubes as templates

Chan A.S.W., Groves M., Malardier-Jugroot C., Royal Military College of Canada, CA

It has been reported that poly(styrene-alt-maleic anhydride) (SMA) chains would self-assembled into a nanotube in aqueous solution at pH7 by associating through a linear conformation which favours the association of the chains by decreasing the [...]

Layer by Layer Fabrication of an Amperometric Nanocomposite Biosensor for Sulfite

Adeloju S.B., Ohanessian A., Water and Sensor Research Group, AU

This paper will present the results of a layer by layer strategy that we have developed for the fabrication of a polypyrrole nanocomposite amperometric biosensor for sulfite. The use of this strategy to fabricate bilayer [...]

Polypyrrole-Organoclay Nanocomposites for Gas Sensors

Magaraphan R., Thuimthad A., Chulalongkorn University, TH

Polypyrrole (PPy) was synthesized in the presence of octadecylammonium-montmorillonite (OC-MMT) 1-9 wt% using ferric chloride as an initiator to result the intercalated nanocomposites. The synthesized PPy and its nanocomposites were tested for volatile organic gases; [...]

Carbon Microstructures for Glucose Biosensor

Xu H., Malladi K., Wang C., Madou M.J., University of California Irvine, US

In this work we report on a novel design and fabrication of glucose sensor based on carbon post electrode array. Apart from the fact that carbon has a wide electrochemical stability window, one advantage of [...]

Layer by Layer Fabrication of an Amperometric Nanocomposite Biosensor for Sulfite

Adeloju S.B., Ohanessian A., Water and Sensor Research Group, AU

This paper will present the results of a layer by layer strategy that we have developed for the fabrication of a polypyrrole nanocomposite amperometric biosensor for sulfite. The use of this strategy to fabricate bilayer [...]

Layer-by-layer Nano-assembled Polypyrrole Humidity Sensor

Nohria R., Khillan R.K., Su Y., Lvov Y., Varahramyan K., Louisiana Tech University, US

In recent years the influence of humidity has been given top priority in moisture sensitive areas such as high voltage engineering systems, storage areas, computer rooms etc. Conducting or semiconducting conjugated polymers show significant change [...]