OPTICAL, STRUCTURAL, THERMAL AND MORPHOLOGICAL CHARACTERIZATION OF 4, 4’- DIAMINODIPHENYL SULPHONE/TITANIUM DIOXIDE/MULTIWALLED CARBON NANOTUBE NANOCOMPOSITES

Abstract

Polymeric nanocomposites based on electroactive conductive polymers with nanoparticle fillers have won considerable attention in recent years due to its highly desirable multifunctional characteristics. In the present study, 4, 4’- diaminodiphenyl sulphone has been polymerized and composites were prepared by adding TiO2 and multiwalled carbon nanotube to the polymer by magnetic stirring. These nanocomposites have been characterized using analytical techniques such as UV-Vis, FT-IR, XRD, FE-SEM, EDS and TGA/ DTA analysis. The incorporation of multiwalled carbon nanotube and titanium dioxide in poly 4, 4’-diaminodiphenyl sulphone has been endorsed by FT-IR analysis. It showed that the peak at 453, 431 cm- 1 confirms the stretching vibration of the Ti-O bond of TiO2 and the absorption peaks at 2925 and 2283 cm-1 are imputed to symmetrical telescopic vibrations of the methylene group (-CH2-) of carbon nanotubes. This confirms the incorporation of TiO2 and multi-walled carbon nanotubes into the polymer matrix in the prepared nanocomposites. The XRD pattern showed formation in the nanoscale range (5.94 nm). SEM analysis showed that the variation in polymer morphology depended mainly on titanium dioxide and multi-walled carbon nanotubes.