Polyaminoboranes
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.
1. A polyaminoborane comprising at least one repeating unit of formula R 5 NH—BR 3 R 4 , wherein R 3 and R 4 are the same or different and are selected from the group consisting of a hydrogen atom, a substituted or unsubstituted heteroatom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms; or R 3 and R 4 together form a cyclic or cyclic and branched organic group having from 3 to 30 carbon atoms; wherein R 5 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms;
wherein if R 5 is a hydrogen atom or a methyl group, at least one of R 3 and R 4 is not a hydrogen atom; and
wherein if R 5 is a n-butyl group, at least one of R 3 and R 4 is not a hydrogen atom, or the polyaminoborane has a mass average molecular weight greater than or equal to 500,000; and
wherein the polyaminoborane has at least one of the following formulas:
[R 5 NH—BR 3 R 4 ] n , wherein n is a number greater than 10; and
[R 5 NH—BR 3 R 4 ] m [R 6 NH—BR 3 R 4 ] (n-m) , wherein n is a number greater than 10 and m is a number greater than or equal to 10 and less than n; wherein R 6 is different from R 5 and R 6 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms; and wherein if R 5 is methyl, at least one of R 3 and R 4 is not a hydrogen atom, or R 6 is not a hydrogen atom or a n-butyl group; and
wherein at least one of R 3 and R 4 is a hydrogen atom.
2. The polyaminoborane according to claim 1 , wherein at least one of R 5 and R 6 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom, methyl, ethyl, n-propyl, n-butyl, substituted or unsubstituted allyl, a substituted or unsubstituted propargyl and a linear, branched, cyclic or cyclic and branched organic group having from 3 to 24 carbon atoms and substituted with at least one alkene, alkyne, ether, thioether, secondary amine, phosphine and/or silyl group.
3. A ceramic precursor or ceramic comprising a polyaminoborane comprising at least one repeating unit of formula R 5 NH—BR 3 R 4 , wherein R 3 and R 4 are the same or different and are selected from the group consisting of a hydrogen atom, a substituted or unsubstituted heteroatom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms; or R 3 and R 4 together form a cyclic or cyclic and branched organic group having from 3 to 30 carbon atoms; wherein R 5 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms
wherein if R 5 is a dydrogen atom or a methyl group, at least one of R 3 and R 4 is not a hydrogen atom; and
wherein if R 5 is a n-butyl group, at least one of R 3 and R 4 is not a hydrogen atom, or the polyaminoborane has a mass average molecular weight greater than or equal to 500,000; and
wherein the polyaminoborane has at least one of the following formulas:
]R 5 NH—BR 3 R 4 ] n , wherein n is a number greater than 10; and
]R 5 NH—BR 3 R 4 ] m [R 6 NH—BR 3 R 4 ] (n-m) , wherein n is a number greater than 10 and m is a number greater than or equal to 10 and less than n; wherein R 6 is different from R 5 and R 6 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, byclic or cyclic and branched organic group having from 1 to 30 carbon atoms; and wherein if R 5 is methyl, at least one of R 3 and R 4 is not a hydrogen atom, or R 6 is not a hydrogen atom or a n-butyl group.
4. A hydrogen fuel cell or energy material comprising a polyaminoborane comprising at least one repeating unit of formula R 5 NH—BR 3 R 4 , wherein R 3 and R 4 are the same or different and are selected from the group consisting of a hydrogen atom, a substituted or unsubstituted heteroatom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms; or R 3 and R 4 together form a cyclic or cyclic and branched organic group having from 3 to 30 carbon atoms; wherein R 5 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms
wherein if R 5 is a hydrogen atom or a methyl group, at least one of R 3 and R 4 is not a hydrogen atom; and
wherein if R 5 is a n-butyl group, at least one of R 3 and R 4 is not a hydrogen atom, or the polyaminoborane has a mass average molecular weight greater than or equal to 500,000; and
wherein the polyaminoborane has at least one of the following formulas:
[R 5 NH—BR 3 R 4 ] n , wherein n is a number greter than 10; and
[R 5 NH—BR 3 R 4 ] m [R 6 NH—BR 3 R 4 ] (n-m) , wherein n is a number greater than 10 and m is a number greater than or equal to 10 and less than n; wherein R 6 is different from R 5 and R 6 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms; and wherein if R 5 is methyl, at least one of R 3 and R 4 is not a hydrogen atom, or R 6 is not a hydrogen atom or a n-butyl group.
5. The polyaminoborane of claim 1 , wherein at least one of R 5 and R 6 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom, methyl, ethyl, n-propyl, n-butyl, substituted or unsubstituted allyl, a substituted or unsubstituted propargyl and a linear, branched, cyclic or cyclic and branched organic group having from 3 to 24 carbon atoms and substituted with at least one alkene, alkyne, ether, thioether, secondary amine, phosphine and/or silyl group.
6. A method comprising:
preparing a ceramic precursor or a ceramic, or
preparing boron nitride, or
storing and/or producing dihydrogen,
from a polyaminoborane comprising at least one repeating unit of formula R 5 NH—BR 3 R 4 , wherein R 3 and R 4 are the same or different and are selected from the group consisting of a hydrogen atom, a substituted or unsubstituted heteroatom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms; or R 3 and R 4 together form a cyclic or cyclic and branched organic group having from 3 to 30 carbon atoms; wherein R 5 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms
wherein if R 5 is a hydrogen atom or a methyl group, at least one of R 3 and R 4 is not a hydrogen atom; and
wherein if R 5 is a n-butyl group, at least one of R 3 and R 4 is not a hydrogen atom, or the polyaminoborane has a mass average molecular weight greater than or equal to 500,000; and
wherein the polyaminoborane has at least one of the following formulas:
[R 5 NH—BR 3 R 4 ] n , wherein n is a number greater than 10; and
[R 5 NH—BR 3 R 4 ] m [R 6NH—BR 3 R 4 ] (n-m) , wherein n is a number greater than 10 and m is a number greater than or equal to 10 and less than n; wherein R 6 is different from R 5 and R 6 is selected from the group consisting of a hydrogen atom, a substituted or unsubstituted nitrogen atom and a linear, branched, cyclic or cyclic and branched organic group having from 1 to 30 carbon atoms; and wherein if R 5 is methyl, at least one of R 3 and R 4 is not a hydrogen atom, or R 6 is not a hydrogen atom or a n-butyl group.