Method for preparing hydrophobic organic framework solid base catalyst

Abstract

The present invention relates to a method for preparing a hydrophobic organic framework solid base catalyst. A functional monomer of 4-vinylpyridine or 1-vinylimidazole, a crosslinking agent monomer of divinylbenzene and an initiator of azodiisobutyronitrile are added into an organic solvent for a thermal polymerization reaction, and the hydrophobic organic framework solid base catalyst is obtained after evaporating and drying the solid at room temperature. In the thermal polymerization reaction, the ratio of the total amount of the functional monomer and the crosslinking agent monomer to the organic solvent is 0.67-2.0 (mL / mmol). The ratio of the functional monomer and the crosslinking agent monomer is 0.2-1.0 (mL / mL). The temperature of the solvent thermal polymerization reaction is 80-140 DEG C, and the reaction pressure is 0.5-5 MPa. The method provides the organic framework solid base catalyst which is swellable, large in specific surface area, large in pore volume, stable, and super-hydrophobic.

Description

technical field [0001] The invention relates to the field of material chemistry, in particular to a method for preparing a superhydrophobic organic framework solid base catalyst with rich pore structure and high specific surface area. Background technique [0002] In recent years, with the development of chemical industry, catalytic technology has attracted more and more attention, especially in the field of petrochemical and fine chemical industry, which has shown an increasingly prominent and important role. Catalyst is the core of catalytic technology. According to acidity and alkalinity, it can be divided into acid catalyst and base catalyst. The disadvantages of acid catalyst, such as low catalytic efficiency and strong corrosion, limit its large-scale application. Compared with acid catalyst, base catalyst has catalytic activity. High, low corrosion and other advantages, it has important applications in the field of organic synthesis and life sciences, but at present, ...

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Problems solved by technology

[0004] The purpose of this invention is to provide a kind of preparation method of hydrophobic organic framework solid base catalyst, overcome the traditional solid base catalyst (alkali metal oxide, hydroxide, hydrotalcite etc.) that exists in the prior art to be sensitive to water, absorb air easily The carbon dioxide in the carbon dioxide will lead to the deactivation of the active center, low specific surface area, difficult regeneration and other shortcomings, and provide a swellable, large specific surface area, large pore volume, stable, superhydrophobic organic framework solid base catalyst

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