Functional monomer and preparation method thereof

A technology of functional monomer and general formula, applied in the field of functional polymer materials, can solve the problems of inability to meet the requirements of template recognition, difficult template imprinting and recognition, single function of functional monomer, etc., and achieves safe and convenient use and no three waste pollution. , a rich source of effects

Inactive Publication Date: 2013-07-10
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of them is that there are too few types of functional monomers currently available, and the functions of functional monomers are single, so that they cannot meet the requirements of certain template recognition, or cannot meet the needs of practical applications; in addition, most imprinted polymers can only be used in Polymerization and application are carried out in organic phase, while natural template recognition systems are mostly carried out in aqueous solution, how to carry out template imprinting and recognition in aqueous solution or polar solvent is still a big problem

Method used

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  • Functional monomer and preparation method thereof
  • Functional monomer and preparation method thereof
  • Functional monomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1D

[0035] The preparation of embodiment 1DMA-CS-Salen-Zn type functional monomer

[0036] Step 1. Preparation of DMA-CS

[0037]

[0038] Take by weighing -2-(dimethylamino) ethyl methacrylate (DMA) 78 grams and 5-chloromethyl salicylaldehyde (5-CS) 80 grams and dissolve in 100 grams of ethyl acetate respectively, make described The ethyl acetate solution of -2-(dimethylamino)ethyl methacrylate and the ethyl acetate solution of 5-chloromethyl salicylaldehyde, at room temperature, the ethyl acetate solution of 5-chloromethyl salicylaldehyde The solution was added into the ethyl acetate solution of 2-(dimethylamino)ethyl methacrylate, and after stirring and reacting for 4 hours, the temperature was raised to 60-65° C. and the stirring reaction was continued for 6 hours. The reaction system was left to cool to room temperature naturally, filtered to obtain a light white crystalline substance, recrystallized, and dried to obtain 151 g of DMA-CS with a yield of 95.6% and a melting...

Embodiment 2D

[0048] The preparation of embodiment 2DMA-CS-Salophen-Cu type functional monomer

[0049]

[0050] According to the method and operation steps of Example 1, the ethylenediamine in step 2 of Example 1 was replaced with o-phenylenediamine, and the zinc chloride in step 3 was replaced with copper chloride to obtain yellow-green DMA-CS- Salophen-Cu type functional monomer.

Embodiment 3

[0051] The preparation of embodiment 3DMAA-CS-Salen-Mn functional monomer

[0052] According to the method and operation steps of Example 1, the 2-(dimethylamino)ethyl methacrylate (DMA) in the first step of Example 1 was replaced with methacryloyl (2-dimethylaminoethylamine) (DMAA) , the ethylenediamine in step 2 of Example 1 is replaced by o-phenylenediamine, and the zinc chloride in step 3 is replaced by 4-vinylpyridine and manganese acetate to obtain dark red DMAA-CS-Salen-Mn functional monomer .

[0053]

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Abstract

The invention provides a functional monomer. The molecular structure of the functional monomer comprises a quaternary ammonium salt structural unit and a salophen complex or a Salen complex unit; and the functional monomer can self polymerize as well as copolymerize with styrene, acrylic ester, acrylonitrile, vinyl acetate or acrylamide, and is used for preparing ion imprinted polymers having the functions of identifying, detecting and separating heavy metal ions. The functional monomer has high hydrophilicity, and moreover, the salophen complex or the Salen complex of the functional monomer also forms the core of the imprinting function and the identification function of the metal ion imprinted polymers.

Description

technical field [0001] The invention relates to a functional monomer, in particular to a functional monomer containing a quaternary ammonium salt and a salophen complex or a Salen complex in the molecular structure, which is used for preparing a metal ion imprinted polymer and belongs to the field of functional polymer materials. technical background [0002] Imprinted polymer refers to a specific target molecule as a template, and the functional monomers with complementary structure are combined with the template molecule through interaction (coordination bond, hydrogen bond, van der Waals force, electrostatic interaction, hydrophobic interaction, etc.) , adding a cross-linking agent to carry out the polymerization reaction, after the reaction is completed, the template molecule is eluted to form a hole with the exact same size or shape as the template molecule, which can recognize the rigid polymer material that adsorbs the template template molecule with high selectivity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F13/00C07C251/24C07C249/02C08F30/04
Inventor 张田林朱彩艳
Owner HUAIHAI INST OF TECH
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