Water soluble polyaniline/polysaccharide composite: Polymerization, carbonization to yield carbon micro-bubbles

• Synthesis of new polyaniline/alginic acid composite with simple chemical polymerization.
• Transformation from compact coil to expanded coil.
• Secondary doping occurred in polyaniline.
• Polyaniline/alginic acid composite shows water solubility.
• Preparation of micro-bubble structure.

We report synthesis of water soluble polyaniline composite using polysaccharide, alginic acid, by oxidative chemical polymerization. Spectroscopy measurements for the composites with infrared (IR), UV–vis spectroscopy, electron spin resonance (ESR), and scanning electron microscopy (SEM) were carried out. We confirmed water solubility of the composite and carbonization allowed the composite to form carbon micro-bubble structures.

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