Abstract

M. Mohamed¹, S. A. A. Shah¹, Rehmah Mohamed², A. B. A. Majeed¹ and M. K. Tripathy^1*

DOI : http://dx.doi.org/10.13005/ojc/290221

Polymer wrapped single walled carbon nanotubes (SWNTs) have been synthesized to improve the solubility of SWNTs in water. The present study deals with experiments so as to highlight the solute solvent interactions during the solubilisation of polyvinyl pyrrolidone wrapped single walled carbon nanotubes (PVP-SWNTs) in water by viscometric methods. Viscosity values of both PVP and PVP-SWNTs have been determined in water with different concentrations (0.05-1.2 mg/ml) at temperatures 298.15, 303.15, 308.15 and 313.15K. The viscosity values have been evaluated in terms of AF (Falken-Hagen coefficient), BJ (Jones-Dole coefficient), dB/dt,Δμ2° (contribution per mole of the solute to free), Δμ1° (corresponding value for pure solvent) and η0Λ0 (Walden product). The estimated parameters were discussed in terms of solute solvent interactions.

Polymer wrapping; Viscosity; Polyvinyl pyrrolidone; Single walled carbon nanotubes

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