Preparation of Conductive Polyaniline/Functionalized Titanium Dioxide Nanocomposites via Graft Polymerization

摘要

Functionalized titanium dioxide nanoparticle (TiO₂) with highly reactive isocyanate groups at its surface, which serve as active sites for the graft polymerization of aniline, was prepared via the reaction between toluene-2,4-diisocyanate (TDI) and hydroxyl at TiO₂ surface. Conductive polyaniline (PANI) layer was chemically grafted at the surface of the functionalized TiO₂ nanoparticle (f-TiO₂) surface, resulting in PANI/f-TiO₂ nanocomposites. The chemical grafting of PANI was confirmed using FTIR and Thermogravimetric analysis (TGA). The morphology of the PANI/TiO₂ nanocomposites was observed by scanning electron microscope (SEM) and transmission electron microscopy (TEM). The amount of grafted PANI is 21 wt%, which was calculated from the results of TGA.View full textDownload full textKeywordsTitanium dioxide nanoparticle, functionalization, aniline, graft polymerization, nanocompositesRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/10601325.2012.642212