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Preparation method for ionic liquid hybrid imprinted material

An ionic liquid and imprinted material technology, which is applied in the field of preparation of ionic liquid hybrid imprinted materials, can solve the problems of large workload, long time consumption and high cost, and achieves the effects of simple preparation method, environmental friendliness and simplicity, and good chemical stability.

Active Publication Date: 2015-12-09
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of ionic liquid hybrid imprinting material to solve the problems of long time consumption, heavy workload and high cost due to the need to separately synthesize multiple types of imprinting materials for the separation and detection of complex matrix samples

Method used

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  • Preparation method for ionic liquid hybrid imprinted material
  • Preparation method for ionic liquid hybrid imprinted material
  • Preparation method for ionic liquid hybrid imprinted material

Examples

Experimental program
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Effect test

Embodiment 1

[0038] (1) Preparation of ionic liquid: put 2mmol of 3-chloropropyltriethoxysilane and 2mmol of 1-allylimidazole into a reaction flask, mix them with ultrasonic waves, blow in nitrogen gas, seal them, and place them in an oil bath at 100°C Reaction under the conditions for 24h to obtain a hybrid ionic liquid;

[0039] (2) Preparation of the organic phase: take 2mmol of ionic liquid, add 0.5mmol of kinetin, 2mmol of methacrylic acid, 15mmol of ethylene glycol dimethacrylate and 0.4mmol of azobisisobutyronitrile in sequence, and add 10mL of acetonitrile fully dissolved to obtain an organic phase; the number of moles of the ionic liquid is calculated by the number of moles of allyl imidazole;

[0040] (3) Preparation of the inorganic phase: put 10 mmol of ethyl orthosilicate in 30 mL of acetonitrile, add 1 mL of water, and stir at room temperature with 1 mL of ammonia water to completely dissolve it to obtain the inorganic phase;

[0041] (4) Polymerization reaction: Introduce n...

Embodiment 2

[0046] (1) Preparation of ionic liquid: put 4mmol of 3-chloropropyltrimethoxysilane and 4mmol of 1-allylimidazole into a reaction bottle, mix them with ultrasonic waves, blow in nitrogen gas, seal them, and store them in an oil bath at 100°C Under reaction 12h obtains the hybrid ionic liquid;

[0047] (2) Preparation of the organic phase: Take 4 mmol of ionic liquid hybrid monomer, add 0.5 mmol of tryptophan, 2 mmol of acrylamide, 15 mmol of ethylene glycol dimethacrylate and 0.2 mmol of azobisisobutyronitrile in sequence, Fully dissolve with 10mL of acetonitrile to obtain an organic phase; the number of moles of the ionic liquid is calculated by the number of moles of allyl imidazole;

[0048] (3) Preparation of the inorganic phase: put 10 mmol of ethyl orthosilicate in 30 mL of acetonitrile, add 1 mL of water, and stir at room temperature with 1 mL of ammonia water to completely dissolve it to obtain the inorganic phase;

[0049] (4) Polymerization reaction: Introduce nitro...

Embodiment 3

[0053] (1) Preparation of ionic liquid: Put 2mmol of 3-chloropropyltriethoxysilane and 6mmol of 1-acetylimidazole into a reaction bottle, mix it with ultrasonic, blow in nitrogen gas, seal it, and store it in an oil solution at 80°C Under bath condition, react for 24h to obtain hybrid ionic liquid;

[0054] (2) Preparation of the organic phase: take 1 mmol of ionic liquid, add 1 mmol of p-sulfanilamide, 3 mmol of acrylamide, 17 mmol of ethylene glycol dimethacrylate and 0.6 mmol of azobisisoheptanonitrile in sequence, and use 10 mL Acetonitrile is fully dissolved to obtain an organic phase; the number of moles of the ionic liquid is calculated by the number of moles of 1-acetylimidazole;

[0055] (3) Preparation of the inorganic phase: put 20mmol of methyltrimethoxysilane in 120mL of acetonitrile, add 5mL of water, and stir at room temperature with 5mL of ammonia water to dissolve completely to obtain the inorganic phase;

[0056] (4) Polymerization reaction: Introduce nitrog...

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Abstract

The invention discloses a preparation method for an ionic liquid hybrid imprinted material. The preparation method comprises the following steps: uniformly mixing a silylating reagent containing an electronegative group at the tail end of an alkyl chain and an imidazole compound in a molar ratio of 1:(1-3) and carrying out a reaction to obtain an ionic liquid; sequentially adding template molecules, functional monomers, a crosslinking agent containing 2-3 double-bond functional groups and an initiator into the ionic liquid, and fully dissolving the components to obtain an organic phase; dissolving a silane crosslinking agent in an organic solvent, and sequentially adding water and ammonia water to dissolve to obtain an inorganic phase; introducing nitrogen, adding the organic phase into the inorganic phase, and carrying out a reaction at 60-80 DEG C for 8-36 hours; washing out the template molecules; and washing the liquid to neutral and drying the liquid to obtain the ionic liquid hybrid imprinted material. The material prepared by the preparation method disclosed by the invention can be used for extracting and separating various and multiple types of targets and the whole preparation process is mild in reaction condition, relatively low in equipment demand, simple in process, convenient to operate, environmental-friendly and suitable for large-scaled production, popularization and application.

Description

technical field [0001] The invention relates to the field of extraction and separation materials, in particular to a preparation method of ionic liquid hybridized imprinted materials. Background technique [0002] Molecularly imprinted materials are template molecules and functional monomers combined with one or more functional monomers through covalent bonds or non-covalent bonds, and undergo bulk polymerization, precipitation polymerization, or suspension polymerization under the conditions of adding a cross-linking agent. materials prepared by the method. This type of material mainly realizes the extraction and separation of the target through the specific selective adsorption of the recognition site and spatial configuration of the target, and has been used in chromatography separation, antibody and receptor mimics, solid phase extraction, biosensors, etc. This field has become one of the research hotspots of current extraction and separation technology. Tang et al. us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/14C08F220/06C08F230/08C08F220/56C08F212/36C08F222/38C08F220/14C08J9/26B01J20/281B01J20/285
Inventor 闫宏远韩晔红苑亚楠刘海燕乔晓强白立改
Owner HEBEI UNIVERSITY
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