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Silicon-containing materials with controllable microstructure

A technology of silane and silicon coating, which is applied in the direction of liquid-coating devices, coatings, and pre-treated surfaces.

Inactive Publication Date: 2015-04-15
DOW CORNING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While various methods of depositing sol-gel coatings are known, and various methods of producing stimuli-responsive microstructured polymer films are known, there remains a need in the art for cost-effective methods of producing silicone-based coatings

Method used

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  • Silicon-containing materials with controllable microstructure
  • Silicon-containing materials with controllable microstructure
  • Silicon-containing materials with controllable microstructure

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] Provided methods of making silicon-containing materials include reacting an amine-reactive compound having at least one free radically polymerizable group per molecule with an amine-functional silane. Amine reactive compounds can be small molecules, monomers, oligomers, polymers or mixtures thereof. The amine-reactive compound may be an organic compound or an organopolysiloxane compound. In addition to comprising at least one free radically polymerizable group per molecule, provided amine-reactive compounds may also comprise additional functional groups, such as one or more hydrolyzable groups.

[0041] In some embodiments, the amine-reactive compound may be selected from mineral acids, Lewis acids, carboxylic acids, carboxylic acid derivatives such as anhydrides and succinates, metal carboxylate salts, isocyanates, aldehydes, epoxides, acyl Chlorine and sulfuryl chloride. Examples of amine-reactive compounds having at least one radically polymerizable group include, ...

example

[0088] The present invention will be better understood by reference to the following examples, which are provided by way of illustration and which those skilled in the art will recognize are not intended to be limiting.

example 1

[0090] In a glass vial, 4.01 g of a 50% 3-aminopropyltriethoxysilane (Dow Corning) / PGMEA (propylene glycol methyl ether acetate; Aldrich) solution was mixed with 1.56 g of 50% methacrylic acid (Aldrich) / PGMEA solution mixed. In a glass vial, 4.01 g of this mixture was mixed with 0.16 g of the organoborane initiator TnBB-MOPA (tri-n-butylborane complexed with 1.3 molar equivalents of 3-methoxypropylamine) to form a free radical polymerization precursor material. The resulting precursor material was filtered through a 0.2 μm filter and then spin-coated onto a silicon wafer at 3300 rpm to form a continuous coating or film, except for a few pinhole defects.

[0091] When examined in tapping mode using atomic force microscopy (AFM), the sample surface unexpectedly exhibits a vertical alignment of fairly uniform cylindrical protrusions on a molecularly smooth background (RMS roughness 0.7 nm) The arrays have a height of about 5-8 nm and a diameter of about 0.8-2.3 μm, as shown in...

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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.

Description

technical field [0001] The present application relates to silicon-containing coatings; silicon-containing coatings comprising stimuli-responsive microstructures; oxidation products of such silicon-containing coatings; oxidized solids and powders; methods of making such coatings, solids and powders; Provides the substrate for the coating. Background technique [0002] Silicone-based sol-gel coatings have been extensively studied due to their chemical and thermal stability advantages and their ability to be processed as low-viscosity liquids. The sol-gel process has been combined with organic compounds such as surfactants or block copolymers, which act as sacrificial templates during the formation of porous inorganic materials, which are selectively removed by thermal or chemical means. In order to modify the microstructure of the sol-gel based coating, a different formulation is usually required which contains a different amount of the organic template or which contains comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/452C08G77/54C09D183/10C09D183/14
CPCB05D3/007C08G77/54C09D183/08C09D183/10C08G77/452C09D183/14
Inventor D·安杰里米·M·毕比
Owner DOW CORNING CORP