Syntheses and characterization of polymer/TaS2 layered nanocomposites Original Research Article

Polymer/TaS2 layered nanocomposites have been synthesized using the exfoliation–adsorption technique, using 1T-TaS2, 2H-TaS2, and 4Hb-TaS2 single crystals hosts and poly(ethylene oxide) (PEO) and poly(ethylenimine) (PEI) as guest intercalates. Optimum conditions to synthesize nanocomposites were obtained for each set of TaS2 polytypes and polymers using powder X-ray diffraction (XRD). XRD patterns showed that all nanocomposite materials contain polymer between all individual TaS2 sheets. Although 1T-, 2H-, and 4Hb-TaS2 polytypes are well known to show quite different temperature dependences of resistivity, the resistivities of all nanocomposites show similar temperature dependences.