阅读说明：本技术 合成丙烯醛聚合物的方法及丙烯醛聚合物的应用 (Method for synthesizing acrolein polymer and application of acrolein polymer ) 是由 易光政 于 2019-09-11 设计创作，主要内容包括：本发明提出了一种合成丙烯醛聚合物的方法,利用偶氮二异丁腈为催化剂催化丙烯醛聚合使得反应温和容易控制,避免传统方法利用无机碱为催化剂,合成速率过快,导致但合成的丙烯醛聚合物分量大小不均匀,且容易结块,绝缘性差；本发明的合成丙烯醛聚合物的具有良好的杀菌效果,杀菌率可达95％以上,且使用本发明的丙烯醛聚合物后水体中的氨氮和亚硝酸盐也明显降低、溶氧量也明显上升,可应用于被动物排泄物污染的水质或生活污水的处理。(The invention provides a method for synthesizing an acrolein polymer, which utilizes azodiisobutyronitrile as a catalyst to catalyze acrolein to polymerize, so that the reaction is mild and easy to control, and the problem that the traditional method utilizes inorganic base as a catalyst, so that the synthesis rate is too high, and the synthesized acrolein polymer has uneven component size, easy agglomeration and poor insulation property; the synthesized acrolein polymer has good sterilization effect, the sterilization rate can reach more than 95%, and ammonia nitrogen and nitrite in water body are obviously reduced and the dissolved oxygen is obviously increased after the acrolein polymer is used, so that the acrolein polymer can be applied to the treatment of water or domestic sewage polluted by animal excrement.)

1. A method of synthesizing an acrolein polymer, characterized by: the method comprises the following steps: and (3) dissolving the acrolein in a solvent, adding a catalyst of azobisisobutyronitrile, and reacting to obtain the acrolein polymer.

2. The method of synthesizing an acrolein polymer according to claim 1, wherein: and (3) reacting for 20-30 h at the temperature of 60-70 ℃ during the reaction, then cooling to 5-15 ℃, and filtering to obtain a filter cake, namely the acrolein polymer.

3. The method of synthesizing an acrolein polymer according to claim 1, wherein: the solvent comprises: and (3) ethyl acetate.

4. The method of synthesizing an acrolein polymer according to claim 2, wherein: and cooling to 5-15 ℃ to obtain a solution, placing the solution in a pressure filter, introducing nitrogen for pressure filtration, separating to obtain a mother solution and a filter cake, then placing the mother solution in the pressure filter again, introducing nitrogen for pressure filtration, separating to obtain a filter cake, combining the filter cakes obtained twice, then spraying ethyl acetate, diethyl ether and water to the filter cake in sequence, and drying by blowing nitrogen to obtain the acrolein polymer.

5. The method of synthesizing an acrolein polymer according to claim 1, wherein: the acrolein is purified by distillation before being dissolved in the solvent.

6. The method of synthesizing an acrolein polymer according to claim 1, wherein: the mass ratio of the acrolein to the solvent to the azobisisobutyronitrile is 1 (2-4) to (0.02-0.05).

7. Use of an acrolein polymer prepared according to any one of claims 1 to 6 in electronic packaging.

8. Use of an acrolein polymer prepared according to any one of claims 1 to 6 in sewage treatment.

Technical Field

The invention relates to the technical field of batteries, in particular to a method for synthesizing an acrolein polymer and application of the acrolein polymer.

Background

The macromolecular acrolein polymer has strong killing effect on viruses and bacteria due to the fact that a large number of water-insoluble active aldehyde groups are contained on molecular groups of the macromolecular acrolein polymer, and can be used for filtering water polluted by the viruses and bacteria without causing secondary pollution to the water quality. The polymerization method of acrolein generally uses inorganic base as a catalyst, but the synthesized acrolein polymer has uneven molecular weight, easy agglomeration and poor insulation, and is not suitable for water quality purification and electronic packaging.

Based on this, there is a need for a new method for synthesizing acrolein polymers.

Disclosure of Invention

In view of the above, the present invention provides a method for synthesizing acrolein polymer, which is suitable for water purification.

In one aspect, the present invention provides a method of synthesizing an acrolein polymer comprising the steps of: and (3) dissolving the acrolein in a solvent, adding a catalyst of azobisisobutyronitrile, and reacting to obtain the acrolein polymer.

On the basis of the technical scheme, preferably, the reaction is carried out for 20-30 hours at the temperature of 60-70 ℃, then the temperature is reduced to 5-15 ℃, and the filtration is carried out to obtain a filter cake, namely the acrolein polymer.

On the basis of the above technical solution, preferably, the solvent includes: and (3) ethyl acetate.

Preferably, the temperature is reduced to 5-15 ℃ to obtain a solution, the solution is placed in a pressure filter, nitrogen is introduced for pressure filtration, mother liquor and a filter cake are obtained through separation, then the mother liquor is placed in the pressure filter again, nitrogen is introduced for pressure filtration, a filter cake is obtained through separation, the filter cakes obtained through two times are combined, then ethyl acetate, ether and water are sprayed to the filter cake in sequence, and the acrolein polymer is obtained through nitrogen blow drying.

On the basis of the above technical scheme, it is preferable that the acrolein is purified by distillation before being dissolved in the solvent.

On the basis of the technical scheme, the preferable mass ratio of the acrolein to the solvent to the azodiisobutyronitrile is 1 (2-4) to 0.02-0.05.

On the other hand, the prepared acrolein polymer is applied to electronic packaging.

In a third aspect, the acrolein polymer produced is used in sewage treatment.

The method of synthesizing acrolein polymer of the present invention has the following advantageous effects with respect to the prior art:

(1) according to the method for synthesizing the acrolein polymer, the azodiisobutyronitrile is used as the catalyst to catalyze the polymerization of the acrolein, so that the reaction is mild and easy to control, and the phenomenon that the traditional method uses inorganic base as the catalyst and the synthesis rate is too high, so that the synthesized acrolein polymer has uneven component size, is easy to agglomerate and has poor insulation property is avoided;

(2) the synthesized acrolein polymer has good sterilization effect, the sterilization rate can reach more than 95%, and ammonia nitrogen and nitrite in water body are obviously reduced and the dissolved oxygen is obviously increased after the acrolein polymer is used, so that the acrolein polymer can be applied to the treatment of water or domestic sewage polluted by animal excrement.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.