Silicon-containing materials with controllable microstructure
First Claim
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1. A method of preparing silicon-containing materials, comprising:
- (I) reacting an amine-reactive compound having at least one free-radical polymerizable group per molecule with a silane to form a reaction product, the silane having the formula;
(R12NR2)aSiR3b(OR4)4−
(a+b) whereina=1, 2, or 3;
b=0, 1, 2, or 3;
a+b=1, 2, 3, or 4;
each R1 is independently selected from hydrogen, C1-C12 alkyl, halogen-substituted C1-C12 alkyl, C1-C12 cycloalkyl, aryl, nitrogen-substituted C1-C12 alkyl, and aliphatic ring structures which bridge the R1 units, wherein the aliphatic ring structures are optionally N-substituted;
each R2 is independently selected from C1-C30 alkyl;
each R3 is independently selected from hydrogen, halogen, C1-C12 alkyl, halogen-substituted C1-C12 alkyl, and —
OSiR3′
3, wherein R3′
is selected from C1-C12 alkyl and halogen-substituted C1-C12 alkyl; and
each R4 is independently selected from hydrogen, C1-C12 alkyl, and halogen-substituted C1-C12 alkyl;
wherein a mole ratio of amine groups on the silane to amine-reactive groups on the amine-reactive compound is from 0.5 to 1.5;
wherein the reaction may optionally occur in the presence of at least one optional solvent to form a reaction product that is soluble in the at least one optional solvent; and
(II) combining the reaction product of (I) with an organoborane-organonitrogen complex in the presence of oxygen to form a polymer preparation,wherein the polymer preparation of (II) is selected from (a) a solid;
(b) a liquid;
or if the reaction of (I) occurs in the presence of the at least one optional solvent, (c) a dispersion.
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Abstract
In various embodiments, provided are silicon-containing coatings; silicon-containing coatings comprising microstructures that are responsive to one or more stimuli; oxidized products of said silicon-containing coatings; bulk solids; oxidized solids and powders; methods of preparing such coatings, solids, and powders; and substrates comprising the provided coatings.
19 Citations
20 Claims
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1. A method of preparing silicon-containing materials, comprising:
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(I) reacting an amine-reactive compound having at least one free-radical polymerizable group per molecule with a silane to form a reaction product, the silane having the formula;
(R12NR2)aSiR3b(OR4)4−
(a+b)wherein a=1, 2, or 3;
b=0, 1, 2, or 3;
a+b=1, 2, 3, or 4;each R1 is independently selected from hydrogen, C1-C12 alkyl, halogen-substituted C1-C12 alkyl, C1-C12 cycloalkyl, aryl, nitrogen-substituted C1-C12 alkyl, and aliphatic ring structures which bridge the R1 units, wherein the aliphatic ring structures are optionally N-substituted; each R2 is independently selected from C1-C30 alkyl; each R3 is independently selected from hydrogen, halogen, C1-C12 alkyl, halogen-substituted C1-C12 alkyl, and —
OSiR3′
3, wherein R3′
is selected from C1-C12 alkyl and halogen-substituted C1-C12 alkyl; andeach R4 is independently selected from hydrogen, C1-C12 alkyl, and halogen-substituted C1-C12 alkyl; wherein a mole ratio of amine groups on the silane to amine-reactive groups on the amine-reactive compound is from 0.5 to 1.5; wherein the reaction may optionally occur in the presence of at least one optional solvent to form a reaction product that is soluble in the at least one optional solvent; and (II) combining the reaction product of (I) with an organoborane-organonitrogen complex in the presence of oxygen to form a polymer preparation, wherein the polymer preparation of (II) is selected from (a) a solid;
(b) a liquid;
or if the reaction of (I) occurs in the presence of the at least one optional solvent, (c) a dispersion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification