Resin material loaded polyether functionalized ionic liquid catalyst and preparation method thereof

Abstract

The invention relates to a Merrifield resin material loaded polyether functionalized ionic liquid catalyst and a preparation method thereof. Specifically, polyether functionalized ionic liquid is immobilized on the surface of a Merrifield resin material through a chemical bonding method. Because the polyether functionalized ionic liquid has relatively high molecular weight and the ether bond has high flexibility and conformational freedom degree, a polyether chain can extend on the surface of the material, an ionic liquid film layer is effectively formed, secondary physical impregnation of theionic liquid is not needed, the use amount of the ionic liquid is reduced, and the problem that the ionic liquid catalyst is easy to lose is also solved. Meanwhile, the preparation method is simple,the defects in the prior art are overcome, and the novel Merrifield resin material loaded polyether functionalized ionic liquid catalyst has the potential of being applied to catalytic hydrogenation,hydroformylation and CO2 catalytic conversion reaction.

Description

technical field [0001] The invention relates to the technical field of chemistry and chemical engineering, in particular to a polyether functionalized ionic liquid catalyst supported by a resin material and a preparation method thereof. Background technique [0002] In recent years, with the increasing emphasis on green chemistry and the demand for environmentally friendly solvents, green solvent ionic liquids have attracted great attention. Different from traditional organic solvents, ionic liquids have the advantages of extremely low saturated vapor pressure, high thermal and chemical stability, good solubility for transition metal catalysts, and structural designability, so the application of ionic liquids as catalyst supports has become a An efficient means of isolating, recovering, and recycling transition metal catalysts. Although ionic liquids have been used to support and separate transition metal catalysts and have achieved some successful applications, a problem t...

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Problems solved by technology

[0004] The impregnation method based on the principle of physical adsorption is a common method for preparing immobilized ionic liquids. Its advantages are simple and convenient, but the ionic liquids are easy to lose from the surface of the carrier; The cations or anions of the liquid are coupled with the active functional groups on the surface of the carrier material through covalent bonds, and the ionic liquid is not easy to lose from the surface of the carrier, which is more conducive to the stability of the catalyst and prolongs the service life of the catalyst. And usually loaded with small molecule ionic liquids, the simple chemical bonding method is often difficult to make the ionic liquid effectively form an ionic liquid liquid film on the surface of the carrier; the chemical bonding-physical impregnation method overcomes the shortcomings of physical impregnation and chemical bonding to a certain extent , which reduces the loss of ionic liquid and can effectively form an ionic liquid liquid film on the surface of the material, but the preparation steps are complicated, and the ionic liquid absorbed by the second impregnation still has the problem of loss.

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