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Applied Polymer Composites

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Title: SYNTHESIS OF POLYPYRROLE/CELLULOSE COMPOSITES IN IONIC LIQUIDS
Page Range: p.125-154
Author(s): Yang Tan; Khashayar Ghandi
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Journal: Applied Polymer Composites
Issue Year: apc
Volume: 1
Issue No: No.3

Abstract
Conductive polymers are a promising class of polymer materials which have unusual combination properties of conductive metals and insulated plastics. Conductive polymers or conductive polymer-based composites are expected to be widely applied in the new growing technology area of photovoltaic devices, display devices, corrosion protection, batteries, and super-capacitors. Polypyrrole (PPy) is one of the conducting polymers. This study reports the synthesis of PPy/cellulose in ionic liquids (ILs). Conductive polypyrrole-cellulose ionic liquid (PPy-C-IL) composites were synthesised by chemical polymerisation. PPy-C-IL composites both overcome the inadequate mechanical property of polypyrrole, and give a conductive property to the world's most abundant material-cellulose. The synthesis applied a relatively 'green' method that employed a phosphonium IL (trihexyl(tetradecyl) phosphonium dicyanamide) as a novel solvent for dissolution of cellulose (pulp) and in situ polymerisation. The structures, morphology and electrical properties of the homogenous composites were characterized with Fourier-transform infrared spectroscopy, a scanning electron microscope, and a conductivity probe that was built in-house for the purpose. 65 Refs.

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