Calorimetric and Thermogravimetric Studies in Para Tolune Sulphonic Acid (PTSA) Doped Polyaniline

R, Ratheesh R Ratheesh; K, Viswanathan K Viswanathan

doi:10.15373/22778179/nov2013/155

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2014

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“…The polymer is thermally stable up to 200°C; from 400 to 575°C organic material is removed from the sample. The endothermic peak at 547°C represents the dehydroxylation of the kaolin sample forming metakaolin [12][13][14].…”

Section: Characterizationsmentioning

confidence: 99%

Preparation of polyaniline-modified local clay and study of its sorption capacity

et al. 2014

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Clay minerals are frequently used in adsorption processes with aqueous solution; it was found that the adsorption properties of clays change when the samples are modified. In this context, polyaniline-modified clay nanocomposite (at 10 %) was prepared by in situ polymerization processes. The structural and morphological characteristics of the synthesized material are systematically examined by X-ray diffraction, scanning electron microscopy, thermo-gravimetry, differential scanning calorimetry and infrared spectroscopy techniques. The adsorption property of the modified clay was evaluated for the removal of a reactive dye (methylene blue) from aqueous solution at room temperature (25°C) via batch adsorption.

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Section: Characterizationsmentioning

confidence: 99%