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Preparation for organotin functionalization periodic mesoporous organosilicon

A technology of mesoporous organosilicon and organotin, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, chemical/physical processes, etc.

Inactive Publication Date: 2011-09-07
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most commonly used method is to synthesize PMOs with multifunctional groups by grafting on PMOs or introducing another functional group while synthesizing PMOs, but the functionalization of PMOs with silanes containing organotin functional groups has not been reported yet.

Method used

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  • Preparation for organotin functionalization periodic mesoporous organosilicon
  • Preparation for organotin functionalization periodic mesoporous organosilicon
  • Preparation for organotin functionalization periodic mesoporous organosilicon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0014] Realize the embodiment of the present invention as follows:

[0015] In various embodiments, the raw material used (MeO) 2 ClSi(CH 2 ) 3 SnCl 3 It is prepared according to the method described in US Patent (US6,0506,918 B2).

Embodiment approach 1

[0016] Embodiment 1: Add 1 g of copolymer P123 to 110 mL of 1 mol / L hydrochloric acid solution and stir for 3 hours, then add dropwise 1.7 g of TEOS (tetraethoxysilane) and 0.7 g of 1,4-BTEB (1,4-bis (triethoxysilyl) benzene ) and continue to stir for 3 hours, then add 0.3g (MeO) 2 ClSi(CH 2 ) 3 SnCl 3 Add it dropwise and stir for 20 hours, put it into a reaction kettle lined with polytetrafluoroethylene, crystallize at 80°C for 6 hours, filter, wash, dry in vacuum, and use a mixture of ethanol and hydrochloric acid at 80°C After extracting the template release agent for 48 hours, an organotin-functionalized periodic mesoporous organosilicon material was obtained. The XRD pattern and N of the obtained sample 2 The adsorption diagrams are shown in figure 1 and figure 2 .

Embodiment approach 2

[0017] Embodiment 2: Add 1 g of copolymer P123 to 110 mL of 1 mol / L hydrochloric acid solution and stir for 3 hours, add 1.3 g of TEOS and 0.9 g of 1,4-BTEB dropwise and continue stirring for 3 hours, then add 0.3 g of (MeO) 2 ClSi(CH 2 ) 3 SnCl 3 Add it dropwise and stir for 20 hours, put it into a reaction kettle lined with polytetrafluoroethylene, crystallize at 80°C for 6 hours, filter, wash, dry in vacuum, and use a mixture of ethanol and hydrochloric acid at 80°C After extracting the template release agent for 48 hours, an organotin-functionalized periodic mesoporous organosilicon material was obtained. The XRD pattern and N of the obtained sample 2 Adsorption diagram, see respectively figure 1 and figure 2 .

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Abstract

The present invention relates to a preparation of organic tin functionalized periodic mesoporous organo-silica, belonging to the scope of physical chemistry and material chemistry and the preparation is characterized in that the organic tin functionalized periodic mesoporous organo-silica composite material is in-situ synthesized with (MeO)2ClSi(CH2)3SnCl3, a surfactant, silane including organic bridged-group and TEOS as mixed silica sources under acidic condition; the prepared composite material is characterized by even distribution of organic tin, high load, large specific surface, even distribution of pore paths, etc. The method not only can effectively solid support the organic tin on the PMOs material, but also is rich in the preparation types of organic-inorganic mesoporous material, can prepare non-homogeneous phase organic tin catalysts, so as to provide a novel approach for further adjusting the surface performance, reaction performance and bulk phase performance of PMOs.

Description

technical field [0001] The preparation of organotin-functionalized periodic mesoporous organic silicon of the present invention belongs to the category of physical chemistry and material chemistry, and specifically relates to a method of functionalizing periodic mesoporous organic silicon with organotin to prepare new organic-inorganic composite materials and A preparation method for realizing organotin homogeneous catalysis heterogeneity. Background technique [0002] Periodic Mesoporous Organo-Silica (PMOs) is a new type of organic-inorganic hybrid material. This material is usually prepared with the general formula [(R'O) 3 Si] m R (m≥2) siloxane is blended with TEOS (tetraethyl orthosilicate, as the silicon source of inorganic network oxide) or independently used as a silicon source, and is produced by hydrolysis and copolymerization under a surfactant. Its main features are: the organic group is a part of the skeleton structure of the inorganic oxide, and the organic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/22C08G77/02B01J31/12B01J35/10
Inventor 范彬彬李洪玉崔杏雨史秀锋樊卫斌李瑞丰
Owner TAIYUAN UNIV OF TECH