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Benzyl-contained cationic polymerizable surface activated monomer and preparation method and ionic copolymer

An ionic copolymer, cationic technology, applied in the preparation of organic compounds, the preparation of aminohydroxy compounds, chemical instruments and methods, etc., can solve the problem of long carbon chains prone to curling and shrinking, unfavorable surface active monomers, and reduced polymerization activity. problems, to achieve the effect of convenient source of raw materials, easy purification and moderate dispersion performance

Active Publication Date: 2011-10-19
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the surface active monomers that are more researched and applied are all surface active monomers containing long fatty chains. This kind of surface active monomers has relatively strong hydrophobicity, low solubility in water, and long carbon chains are easy to curl and shrink in water. It leads to a decrease in polymerization activity, which is not conducive to obtaining products with a higher concentration of surfactant monomers

Method used

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  • Benzyl-contained cationic polymerizable surface activated monomer and preparation method and ionic copolymer
  • Benzyl-contained cationic polymerizable surface activated monomer and preparation method and ionic copolymer
  • Benzyl-contained cationic polymerizable surface activated monomer and preparation method and ionic copolymer

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Embodiment 1

[0043] This example is used to illustrate the benzyl group-containing cationic polymerizable surfactant monomer and its preparation method and ionic copolymer of the present invention.

[0044] (1) Cationic polymerizable surfactant monomer (M 1 ) preparation

[0045] In a 1000ml reaction device, add 300ml of solvent acetone, 1.0mol of p-methylbenzyl chloride (about 140ml), and then dropwise add 1.5mol of dimethylaminoethyl methacrylate (purchased from Beijing Chemical Reagent Company) to the reaction system (about 240ml), after the dropwise addition, the reaction system was reacted for 20 hours under the reaction condition of 20°C. The reaction system was cooled to 0°C, and a white solid precipitated after standing overnight. Filter the gained solid and wash with acetone (200 milliliters 3 times), after freeze-drying treatment at 0 ℃ for 10 hours, obtain the quaternary ammonium salt M of white target product p-methylbenzyl chloride 1 , yield 84.9%. The product has been ide...

Embodiment 2

[0051] This example is used to illustrate the benzyl group-containing cationic polymerizable surfactant monomer and its preparation method and ionic copolymer of the present invention.

[0052] (1) Cationic polymerizable surfactant monomer (M 2 ) preparation

[0053]In a 1000ml reaction device, add 200ml of solvent dimethylacrylamide, 1.0mol of p-tert-butylbenzyl bromide (solid), and then dropwise add diethylaminoethyl acrylate (purchased from Beijing Chemical Reagent Company) to the reaction system 1mol (about 170ml). After the dropwise addition, the reaction system was reacted at 55° C. for 8 hours. The reaction system was cooled to 5°C, and a white solid precipitated out after standing overnight. The resulting solid was filtered and washed 3 times (200ml) with dimethylacrylamide, and after freeze-drying at 0°C for 10 hours, the white target product, the quaternary ammonium salt M of p-tert-butylbenzyl bromide, was obtained. 2 ; Yield 66.9%. The product has been identif...

Embodiment 3

[0057] This example is used to illustrate the benzyl group-containing cationic polymerizable surfactant monomer and its preparation method and ionic copolymer of the present invention.

[0058] (1) Cationic polymerizable surfactant monomer (M 3 ) preparation

[0059] In the reaction device of 2000ml, add solvent dichloromethane 400ml, p-n-hexyl benzyl chloride 1.0mol (solid), then dropwise add diethylaminoethyl methacrylate (purchased from Beijing Chemical Reagent Company) 5mol in the reaction system (about 950ml). After the dropwise addition, the reaction system was reacted at 35° C. for 16 hours. The reaction system was cooled to 0°C, and a white solid precipitated after standing overnight. The obtained solid was filtered and washed 3 times with dichloromethane (200ml), and after freeze-drying at 0°C for 10 hours, the white target product p-n-hexylbenzyl quaternary ammonium chloride M was obtained. 3 ; Yield 78.9%. The product was identified by infrared and nuclear magn...

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Abstract

The invention provides benzyl-contained cationic polymerizable surface activated monomer, which comprises the following molecular structure: in the formula, X is of a halogen anion; and R1 to R4 are respectively alkyl with 1-8 hydrogen atoms and carbon atoms, alkoxy or substituted phenyl with 1-8 carbon atoms. The invention further provides a preparation method for benzyl-contained cationic polymerizable surface activated monomer and ionic copolymer containing the benzyl-contained cationic polymerizable surface activated monomer unit. The benzyl-contained cationic polymerizable surface activated monomer has surface activity, and can be aggregated to form micelle in aqueous solution, and carries out copolymerization with hydrophilic monomer on the concentration of the aggregated micelle to obtain microblock property of the ionic copolymer; and the benzyl-contained cationic polymerizable surface activated monomer can also be used as emulsifier for carrying out emulsion copolymerization with hydrophobic monomer in the aqueous solution so as to prepare functionally ionic copolymer.

Description

technical field [0001] The invention relates to a benzyl-containing cationic polymerizable surface-active monomer and a preparation method, and an ionic copolymer containing the benzyl-containing cationic polymerizable surface-active monomer unit. Background technique [0002] Hydrophobically associating water-soluble polymers have attracted extensive attention in recent years because of their unique molecular self-assembly behavior and solution properties. Such polymer molecules usually contain a small amount of hydrophobic components (generally not more than 5mol%). In aqueous solution, when the polymer exceeds a certain concentration, hydrophobic association will occur. Due to the reversibility of this association, the This kind of polymer solution has unique rheological properties, so it has important application prospects, especially in the petroleum industry, water treatment, biomedical materials, medicine and other fields. (Acrylamide Polymer, Fang Daobin, Guo Ruiwei...

Claims

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Application Information

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IPC IPC(8): C07C219/08C07C213/08C08F220/56C08F220/34C08F220/36C08F226/10C08F220/14C08F220/18
Inventor 吴飞鹏王桂霞张玉玺施盟泉张云龙
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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