A process for preparing a polyaminoborane comprising reacting at least one monomer with an aminoborane, wherein the at least one monomer is selected from the group consisting of ammonia, a primary amine and a substituted or unsubstituted hydrazine; and wherein the aminoborane comprises a borane substituted by a secondary amino group; polyaminoboranes obtainable by said process; use of said polyaminoboranes for the preparation of a ceramic precursor or a ceramic, the production of boron nitride, or the storage and/or production of dihydrogen; ceramic precursors, ceramics, hydrogen cells or energy materials comprising said polyaminoboranes.

In accordance with one embodiment, a metal part includes a geometric three-dimensional printed structure consisting essentially of pure metal. In accordance with another embodiment, a metallic precursor resin includes a metallopolymer material including a metal-thiolate polymer. The metallopolymer material is a metallogel. The metallogel is substantially transparent and has a viscosity for enabling three-dimensional printing thereof.

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.

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.

A composition is provided for resist underlayer film formation comprising a compound represented by the following formula (1) and a silicon containing compound:

[L.sub.xTe(OR.sup.1).sub.y]  (1)

(In formula (1), L is a ligand other than OR.sup.1; R.sup.1 is any of a hydrogen atom, a substituted or unsubstituted linear alkyl group having 1 to 20 carbon atoms or branched or cyclic alkyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, and a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms; x is an integer of 0 to 6; y is an integer of 0 to 6; the sum of x and y is 1 to 6; when x is 2 or more, a plurality of L may be the same or different; and when y is 2 or more, a plurality of R.sup.1 may be the same or different.)

A composition is provided for resist underlayer film formation comprising a compound represented by the following formula (1) and a silicon containing compound:

[L.sub.xTe(OR.sup.1).sub.y]  (1)

(In formula (1), L is a ligand other than OR.sup.1; R.sup.1 is any of a hydrogen atom, a substituted or unsubstituted linear alkyl group having 1 to 20 carbon atoms or branched or cyclic alkyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, and a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms; x is an integer of 0 to 6; y is an integer of 0 to 6; the sum of x and y is 1 to 6; when x is 2 or more, a plurality of L may be the same or different; and when y is 2 or more, a plurality of R.sup.1 may be the same or different.)

A dual ligand sol-gel sorbent and method of manufacture is provided herein. The dual ligand sol-gel sorbent provides superior enrichment effects through simultaneous exploitation of superhydrophobicity of one of the ligands and the ability of the other ligand to undergo - interaction with hydrophobic aromatic analytes. Sorbent performance is enhanced both in terms of analyte enrichment and sorbent stability, such as pH stability and solvent stability.

An optical component forming composition is provided containing a compound represented by the following formula (1):

[L.sub.xTe(OR.sup.1).sub.y](1)

wherein: L is a ligand other than OR.sup.1; R.sup.1 is any of: a hydrogen atom; a substituted or unsubstituted, linear alkyl group having 1 to 20 carbon atoms, or branched or cyclic alkyl group having 3 to 20 carbon atoms; a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms; and a substituted or unsubstituted alkynyl group having 2 to 20 carbon atoms; x is an integer of 0 to 6; y is an integer of 0 to 6; a sum of x and y is 1 to 6; when x is 2 or more, a plurality of L may be the same or different; and when y is 2 or more, a plurality of R.sup.1 may be the same or different.

An optical component forming composition is provided containing a compound represented by the following formula (1):

[L.sub.xTe(OR.sup.1).sub.y](1)

wherein: L is a ligand other than OR.sup.1; R.sup.1 is any of: a hydrogen atom; a substituted or unsubstituted, linear alkyl group having 1 to 20 carbon atoms, or branched or cyclic alkyl group having 3 to 20 carbon atoms; a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms; and a substituted or unsubstituted alkynyl group having 2 to 20 carbon atoms; x is an integer of 0 to 6; y is an integer of 0 to 6; a sum of x and y is 1 to 6; when x is 2 or more, a plurality of L may be the same or different; and when y is 2 or more, a plurality of R.sup.1 may be the same or different.