Now showing items 21-30 of 30
Chemical vapor deposition of tungsten oxide
(John Wiley & Sons, Ltd., 1998-03)
Crystalline and amorphous thin films of tungsten(VI) oxide can be prepared by chemical vapor deposition using a variety of volatile precursors below 500 °C. Deposition parameters for preparation of WO 3 films from tungsten ...
Synthesis of poly(vinyl alcohol) / silica gel polymer hybrids by in-situ hydrolysis method
(John Wiley & Sons, Ltd., 1998-10)
Homogeneous poly(vinyl alcohol) (PVA)–silica gel polymer hybrids were prepared by in-situ hydrolysis of poly(vinyl acetate) (PVAc) in a sol–gel reaction mixture with tetramethoxysilane (TMOS). The degree of hydrolysis was ...
Rearrangements versus ligand exchange reactions of organocobalt polymer having cobaltacyclopentadiene moieties in the main chain Part of the work presented here was communicated in Ref. 1: Macromolecules , 27 , 7009 (1994).
(John Wiley & Sons, Ltd., 1998-10)
The rearrangement reaction of an organocobalt polymer with cobaltacyclopentadiene moieties in the main chain ( 1 ) was carried out to yield anew polymer bearing (η 5 -cyclopentadienyl) (η 4 -cyclobutadiene)cobalt moieties ...
Surface science and stability of networks prepared from hydroxy-terminated polydimethylsiloxane and methyltriethoxysilane
(John Wiley & Sons, Ltd., 1998-10)
Polydimethylsiloxane (PDMS) hybrid networks have been prepared by the reaction of PDMS(OH) 2 , average molecular weight 26 14× 1410 3 , 43.6 14× 1410 3 and 58 14× 1410 3 , and methyltriethoxysilane (MeTEOS, 10–60 wt%) ...
Microstructure of a Pd/ceria–zirconia catalyst after high-temperature aging
(Kluwer Academic Publishers-Plenum Publishers; Kluwer Academic Publishers ; Springer Science+Business Media, 1998-03)
A model automotive exhaust catalyst, consisting of 2.25 wt% Pd supported on initially high-surface-area (88 m 2 /g) cerium–zirconium mixed oxide (Ce 0.5 Zr 0.5 O 2 ), was studied by X-ray diffraction (XRD), thermogravimetric ...
Evaluation of the simultaneous use of Cp 2 VMe 2 and CpTiCl 2 N(SiMe 3 ) 2 as precursors to ceramic thin films containing titanium and vanadium: Towards titanium–vanadium carbonitride
(John Wiley & Sons, Ltd., 1998-03)
Ceramic thin films containing titanium, vanadium, carbon, oxygen and nitrogen were obtained on steel substrates at 873 K, under nitrogen and helium gases and at low pressure, by chemical vapor deposition (CVD) from two ...
Linear and hyperbranched polycarbosilanes with Si-CH 2 -Si bridging groups: A synthetic platform for the construction of novel functional polymeric materials
(John Wiley & Sons, Ltd., 1998-10)
Work carried in the authors laboratory on Si–CH 2 –Si bridged polycarbosilanes is reviewed. In pursuit of high-yield polymeric precursors to silicon carbide, convenient synthetic routes to both linear and hyperbranched ...
Preparation and properties of silicon-containing polymer hybrids from 3-methacryloxypropyltrimethoxysilane
(John Wiley & Sons, Ltd., 1998-10)
The preparation of organic–inorganic polymer hybrids consisting of carbon–carbon and siloxane chains was investigated by radical polymerization of 3-methacryloxypropyltrimethoxysilane (MAS) followed by acid-catalyzed ...