Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of cross-linkable quaternary ammonium salt water-soluble cationic monomer and its preparation method and application

A technology of water-soluble cationic and quaternary ammonium salts, applied in the field of cationic monomers, can solve the problems of low cationization degree and inability to achieve performance of polymers, and achieve the effects of high cationic degree, large molecular weight, and improved performance.

Active Publication Date: 2016-08-17
传化智联股份有限公司 +3
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the current synthetic technology, the preparation of such cationic polymers in industry generally adopts two methods of cationizing natural high molecular polymers or first polymerizing monomers and then cationizing them. The degree of cationization of the polymers is low, and the performance required by the industry cannot be achieved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of cross-linkable quaternary ammonium salt water-soluble cationic monomer and its preparation method and application
  • A kind of cross-linkable quaternary ammonium salt water-soluble cationic monomer and its preparation method and application
  • A kind of cross-linkable quaternary ammonium salt water-soluble cationic monomer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of cross-linkable water-soluble cationic monomer

[0035] Add 2.0mol of epichlorohydrin and 10ml of water to a four-neck flask equipped with a condensing reflux tube, a thermometer, a dropping funnel and a stirrer, raise the temperature to 30°C, and add 33% dimethylamine dropwise at 30°C 1.0 mol (calculated as the number of moles of dimethylamine), after dripping, keep warm at 30°C for 10 hours, then distill under reduced pressure to remove unreacted monomer and water. Cool down to below 20°C, add 42.9g of 33% glacial acetic acid aqueous solution to adjust the pH value of the material to 4-5, slowly add 2.0mol of dimethylallylamine dropwise and control the system temperature to 30°C, after the dripping is completed, set the temperature at 30°C Insulated reaction for 10 h, vacuum distillation to remove unreacted monomer and water to obtain the desired cross-linkable water-soluble cationic monomer.

[0036] 2. Polymerization reaction

[0037] Add 100 g of...

Embodiment 2

[0039] 1. Preparation of cross-linkable water-soluble cationic monomer

[0040] Add 2.8mol of epibromopropane and 10ml of water into a four-neck flask equipped with a condensing reflux tube, a thermometer, a dropping funnel and a stirrer, raise the temperature to 30°C, and add 50% methylpropane dropwise at 30°C 1.0 mol of methyl propyl amine (calculated as the number of moles of methyl propyl amine), after dropping, keep it warm at 30°C for 10 hours, then distill under reduced pressure to remove unreacted monomer and water. Cool down to below 20°C, add 26.9g of 36.5% hydrochloric acid aqueous solution to adjust the pH value of the material to 4~5, slowly add 3.0mol of methpropylallylamine and control the system temperature to 30°C Insulated reaction for 10 h, vacuum distillation to remove unreacted monomer and water to obtain the desired cross-linkable water-soluble cationic monomer.

[0041] 2. Polymerization reaction

[0042] Add 100 g of the synthesized cross-linkable wat...

Embodiment 3

[0044] 1. Preparation of cross-linkable water-soluble cationic monomer

[0045] Add 2.0mol of epibromopropane and 10ml of water to a four-neck flask equipped with a condensing reflux tube, a thermometer, a dropping funnel and a stirrer, raise the temperature to 30°C, and add 33% dimethylamine dropwise at 30°C 1.0 mol (calculated as the number of moles of dimethylamine), after dripping, keep warm at 30°C for 10 hours, then distill under reduced pressure to remove unreacted monomer and water. Cool down to below 20°C, add 38.8g of 33% glacial acetic acid aqueous solution to adjust the pH value of the material to 4-5, slowly add 2.0mol of dimethylallylamine dropwise and control the system temperature to 30°C, after the dripping is completed, set the temperature at 30°C Insulated reaction for 10 h, vacuum distillation to remove unreacted monomer and water to obtain the desired cross-linkable water-soluble cationic monomer.

[0046] 2. Polymerization reaction

[0047] Add 100 g of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a cross-linkable water-soluble cationic monomer as well as a preparation method and application thereof. The traditional quaternary ammonium salt water-soluble cationic monomer is prepared by the two methods of carrying out cationization on natural polymer or polymerizing a monomer and then carrying out cationization, but the cationization degrees of the polymers obtained by the two methods are both lower and can not reach the industrially needed performance. The cross-linkable water-soluble cationic monomer is prepared by virtue of the following steps: on the basis of utilizing alkyl secondary amine, epoxyhalopropane, allyl tertiary amine and dilute acid as raw materials, carrying out substitution reaction, ring-opening reaction, solution removing and the like. The cross-linkable water-soluble cationic monomer can be polymerized with an olefinic unsaturated comonomer to form a cross-linkable copolymer or homopolymer, and the homopolymer and the copolymer based on the cross-linkable water-soluble cationic monomer have the advantages that the cation content is high and adjustable, the molecular weight is large, the cation degree is high, the homopolymer and the copolymer can be well dissolved in water and can generate strong intermolecular interaction with various polar materials and the like.

Description

technical field [0001] The invention belongs to the field of cationic monomers, and relates to cross-linkable water-soluble quaternary ammonium salt cationic compounds, especially a kind of quaternary ammonium salt-based water-soluble cationic monomers that can be polymerized at both ends and have cross-linking groups (hydroxyl groups) and Its preparation method and application. Background technique [0002] Cationic polymer is an important functional polymer material, which has cationic properties in its macromolecular structure, so it has been widely used in many fields. The common application fields of cationic polymers include: as color fixing agent, antistatic agent and bactericide in textile dyeing and finishing industry; In the paper industry, it is used as a paper strengthening agent, printing ink retention agent, etc.; in sewage treatment, it is used as a cationic flocculant, sludge dehydrating agent; in the oil field industry, it is used as a drilling fluid, oil f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C215/40C07C213/04D06P5/08D06P3/66C08F126/02
Inventor 张红燕金鲜花项宝军张丽阳
Owner 传化智联股份有限公司