Preparation of nanocomposites of poly(ethylene oxide) with TiS2

2019-10-07 10:58:14

poly nanocomposites oxide ethylene TiS2

责任者: Lemmon, J.P.;Lerner, M.M. 单位: Dept. of Chem., Oregon State Univ., Corvallis, OR, USA 来源出处: Solid State Communications(Solid State Commun. (USA)),1995/05/,94(7):533-7 摘要: Single phase nanocomposites containing TiS2 and poly(ethylene oxide) (PEO) are prepared by the interaction of colloidal TiS2 with a solution of PEO in N-methyl formamide (NMF). X-ray diffraction indicates a layered product. The role of NaOH in stabilizing the single sheet colloid is unclear, but a similar addition of LiOH does not produce the desired colloid. It should be noted that while Li is far more abundant in the solution, Na is selectively incorporated into the nanocomposite forms (c≈14 Å), consistent with the incorporation of an 8 Å, double layer of poly(ethylene oxide) between the disulfide sheets. A single-phase product is of appropriate composition Li0.02Na0.25(C2H2O)0.8TiS2·1NMF. Electronic measurements between 77 and 274 K indicate a conductivity between 10-2 and 10-3 s cm-1, with little temperature dependence 关键词: colloids;composite materials;electrical conductivity;materials preparation;nanostructured materials;organic compounds;polymers;titanium compounds;X-ray diffraction;nanocomposites preparation;poly(ethylene oxide)-TiS2 composite;single phase nanocomposites;single sheet colloid;N-methyl formamide;X-ray diffraction;layered product;double layer;disulfide sheets;electronic measurements;electrical conductivity;77 to 274 K;TiS2