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A kind of hybrid porous monolithic material and its preparation and application

A monolithic material and hybridization technology, applied in chemical instruments and methods, and other chemical processes, can solve the problems of poor mechanical strength, easy swelling, and poor stability of organic monolithic columns, and achieve shortened preparation time and thermal stability Good performance and strong versatility

Active Publication Date: 2021-08-31
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, organic monolithic columns have poor mechanical strength, poor stability, and are prone to swelling in some organic solvents.

Method used

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  • A kind of hybrid porous monolithic material and its preparation and application
  • A kind of hybrid porous monolithic material and its preparation and application
  • A kind of hybrid porous monolithic material and its preparation and application

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Embodiment 1

[0024] Preparation of POSS-SH functional monomer: First, take 15mL of mercaptopropyltrimethoxysilane (MPTS) and dissolve it in 360mL of methanol, add 30mL of concentrated hydrochloric acid (36% to 38%) dropwise to the solution, and in an oil bath at 90°C Reflux reaction for 24h; after the reaction is completed, cool the reaction solution in an ice bath (-4°C-4°C) to obtain a crude product, wash the crude product three times with methanol to remove residual mercaptopropyltrimethoxysilane; then, use di Dissolve the obtained crude product in methyl chloride, add water to the solution for extraction, collect the dichloromethane layer, then add water for extraction, repeat three times, finally collect dichloromethane, add anhydrous sodium sulfate to it and dry overnight; finally, the obtained The solution was distilled under reduced pressure to obtain the product POSS-SH. The obtained POSS-SH was dissolved in tetrahydrofuran solution (50.0%, w / v, mg / ml) for use.

[0025] The prepa...

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Abstract

The invention relates to the preparation of a polyacrylate hybrid monolithic material added with a polyhedral oligosesquioxane reagent (POSS). The first step is to mix polyhedral oligosesquioxane reagents with mercapto groups with other two acrylate monomers, add a porogenic solvent for ultrasonic dissolution; initiate acrylate self-polymerization and mercapto-acrylic acid in situ through ultraviolet light initiation. The hybrid monolithic material can be obtained by ester click chemistry reaction. The monolithic material has a simple and rapid preparation process, mild reaction conditions, uniform pore structure and good thermal stability, and can be applied to high-efficiency chromatographic separation and analysis of small molecular compounds and complex biological samples.

Description

technical field [0001] The present invention relates to a rapid preparation of organic-inorganic hybrid porous monolithic material based on photoinitiated mercapto free radical-mediated polymerization and its preparation method and application. Polyhedral oligomeric silsesquioxane of mercapto groups, acrylate compounds and photoinitiators were ultrasonically dissolved in a porogenic solvent, and photoinduced acrylate self-polymerization and mercapto-acrylate click chemical reaction (photoinduced thiol-eneclick polymerization reaction) were used. ) in situ formation of organic-inorganic hybrid porous monoliths. By adjusting the concentration of monomers, the amount of mercapto groups added and the ratio of porogens, a porous hybrid monolithic material with excellent chromatographic performance can be prepared finally, specifically a hybrid porous monolithic material and its preparation and application. Background technique [0002] In recent years, miniaturization has become...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/282C08F220/18C08F222/20C08F2/48C08F8/42
CPCB01J20/282B01J2220/58C08F2/48C08F8/42C08F220/18C08F222/1006
Inventor 欧俊杰王妍马淑娟叶明亮
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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