The object of the present invention is to attain both water/oil repellency and hardness. The transparent film of the present invention comprises: a polysiloxane backbone; and a first hydrocarbon chain-containing group bonded to a part of silicon atoms forcing the polysiloxane backbone, wherein the thickness of the transparent film is not less than 6 nm and not more than 50 nm.

The object of the present invention is to attain both water/oil repellency and hardness. The transparent film of the present invention comprises: a polysiloxane backbone; and a first hydrocarbon chain-containing group bonded to a part of silicon atoms forcing the polysiloxane backbone, wherein the thickness of the transparent film is not less than 6 nm and not more than 50 nm.

A polymetalloxane is described having a constituent unit represented by the following general formula (1):

##STR00001##

wherein R.sup.1, R.sup.2, R.sup.3, M a, b and m are as defined.

The invention provides a metallopolymer coordination network comprising one or more coinage or similar metals and in some embodiments, a glyme or glyme-equivalent. The composition has an amorphous polymer network that is significantly stronger than previously reported supramolecular hydrogels synthesized without glyme. Glyme chain length and water content strongly influence the mechanical, electronic, and optical behavior of the network.

A method of producing a metal oxide fiber is described, including a spinning step of spinning a composition containing a polymetalloxane and an organic solvent to obtain a thread-like product; and a firing step of firing the thread-like product obtained in the spinning step at a temperature of 200° C. or higher and 2,000° C. or lower to obtain a metal oxide fiber, where the polymetalloxane has a repeating structure composed of a metal atom selected from the group consisting of Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Y, Zr, Nb, Mo, Pd, Ag, In, Sn, Sb, Hf, Ta, W and Bi, and an oxygen atom and where the weight average molecular weight of the polymetalloxane is 20,000 or more and 2,000,000 or less.

The invention provides a metallopolymer coordination network comprising one or more coinage or similar metals and a glyme or glyme-equivalent. The composition has an amorphous polymer network that is significantly stronger than previously reported supramolecular hydrogels synthesized without glyme. Glyme chain length and water content strongly influence the mechanical, electronic, and optical behavior of the network.

The invention provides a metallopolymer coordination network comprising one or more coinage or similar metals and a glyme or glyme-equivalent. The composition has an amorphous polymer network that is significantly stronger than previously reported supramolecular hydrogels synthesized without glyme. Glyme chain length and water content strongly influence the mechanical, electronic, and optical behavior of the network.

A titanium oxide aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, a surface to which a metal compound containing a metal atom and a hydrocarbon group is bonded via an oxygen atom, a BET specific surface area in a range of 120 m.sup.2/g to 1,000 m.sup.2/g, and a value A is in the range of 0.03 to 0.3. The value A is calculated by formula: A={(peak intensity of CO bond+peak intensity of CO bond)/(peak intensity of CC bond+peak intensity of CC bond)}. In the formula, the peak intensity is a value determined from a C 1s XPS spectrum.

The invention provides a metallopolymer coordination network comprising one or more coinage or similar metals and a glyme or glyme-equivalent. The composition has an amorphous polymer network that is significantly stronger than previously reported supramolecular hydrogels synthesized without glyme. Glyme chain length and water content strongly influence the mechanical, electronic, and optical behavior of the network.

According to one inventive concept, a metallopolymer material includes a plurality of nanoparticles, a base, and water. Each of the nanoparticles includes a plurality of oligomer segments, where oligomer segments are coordinated to adjacent oligomer segments. Each of the oligomer segments includes a thiol and a metal.