Isopropanol → HCID 86755560, compound

HRID 2289649Notes

Reaction equation

HRID 2289649 reaction equation
C[Si](OC)(OC)OC.[Sb:9](=[O:13])([O-:12])([O-:11])[O-:10].[Zn+2:14].[Sb:15](=[O:19])([O-:18])([O-:17])[O-:16].[Zn+2].[Zn+2].[CH:22]([OH:25])([CH3:24])[CH3:23]>CO>[CH:22]([OH:25])([CH3:24])[CH3:23].[Sb:9](=[O:10])([O-:13])([O-:12])[O-:11].[Zn+2:14].[Sb:15](=[O:16])([O-:19])([O-:18])[O-:17].[Zn+2:14].[Zn+2:14]

Participants

5

Reactant 3

HCID 3776IsopropanolHCID 14456MethyltrimethoxysilaneHCID 21863617HCID 21863617, compound

Product 1

HCID 86755560HCID 86755560, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To 1,600 g of the anhydrous zinc antimonate aqueous sol used in Example 1 was added 8.0 g of methyltrimethoxysilane (manufactured by Toray Dow Corning Silicone Co., Ltd., trade name SZ6070) and the mixture was stirred at room temperature for 2 hours with a disper. To this were added 1.45 g of di-n-propylamine and 2.0 g of malic acid, followed by mixing with stirring at room temperature for 3 hours with a disper to obtain a colloid solution of anhydrous zinc antimonate having the surface of whose particles is coated with methyltrimethoxysilane or its hydrolysate. The colloid solution had a pH of 4.1. The aqueous solvent of the surface-modified anhydrous zinc antimonate colloid solution was substituted by a methanol solvent and then by an isopropyl alcohol solvent using a rotary evaporator to produce surface-modified anhydrous zinc antimonate isopropyl alcohol sol. The resulting isopropyl alcohol sol contained 21.6% of ZnO.Sb2O5 and the amount of silane coupling agent coated was 0.9% by weight in terms of SiO2 based on the weight of ZnO.Sb2O5. The solution obtained by mixing this sol with water in a weight ratio of 1:1 had a pH of 5.2, and a primary particle diameter of 15 to 50 nm by transmission electron microscopic observation and aggregated particle size of 262 nm by laser scattering particle size distribution analyzer. A dry product of the sol had a volume resistivity of 2,000 Ω·cm.

Workup

  1. customa rotary evaporator

Sources & evidence

ORD record
ord-e35f3d0642424ef3b54be88ac5bd8158
Source dataset
uspto-grants-2000_07
Patent number
US06093749

Reaction notes

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