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Polymer containing diaminotriazine and preparation method thereof

A diaminotriazine, polymer technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water/sewage treatment, etc., can solve problems such as poor compatibility and low conversion rate, and achieve compatibility Good, low toxicity, good migration resistance effect

Active Publication Date: 2018-06-15
湖南美莱珀科技发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the low conversion rate of the polymer containing diaminotriazine and the poor compatibility of the obtained polymer containing diaminotriazine in the prior art, Provide a polymer containing diaminotriazine with good compatibility and high conversion rate and its preparation method

Method used

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  • Polymer containing diaminotriazine and preparation method thereof
  • Polymer containing diaminotriazine and preparation method thereof
  • Polymer containing diaminotriazine and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of preparation method of the polymkeric substance containing diaminotriazine, the steps are as follows:

[0051] (1) After mixing polyacrylonitrile, dicyandiamide (structural formula as shown in formula (II)), methanol and calcium chloride, first react at 60°C for 1 hour, then at 80°C for 2 hours, and finally at 100°C ℃ reaction for 1 hour, the product a was obtained by cooling down, wherein the mass ratio of polyacrylonitrile, dicyandiamide and methanol was 1:0.1:5, and the addition of calcium chloride was the addition of polyacrylonitrile in parts by weight. 0.5% of the amount; the structural formula of polyacrylonitrile is shown in formula (I), wherein R 1 and R 2 Same as shown in formula (b), wherein x is 0, and the average value of n in the molecular chain of polyacrylonitrile is 20;

[0052] (2) Product a is washed 3 times with deionized water to obtain product b;

[0053] (3) Place the product b in an aqueous solution of hydrochloric acid with 1 times i...

Embodiment 2

[0057] A kind of preparation method of the polymkeric substance containing diaminotriazine, the steps are as follows:

[0058] (1) After mixing polyacrylonitrile, dicyandiamide (structural formula as shown in formula (II)), a mixture of methanol and ethanol (volume ratio 1:1) and magnesium chloride, first react at 62°C for 2 hours, and then React at 82°C for 3 hours, and finally react at 105°C for 2 hours, and obtain product a after cooling down, wherein the mass ratio of polyacrylonitrile, dicyandiamide and methanol to ethanol (volume ratio 1:1) is 1:0.2: 10. In parts by weight, the addition of magnesium chloride is 2% of the addition of polyacrylonitrile; the structural formula of polyacrylonitrile is the same as that of Example 1, and the average value of n in the molecular chain of polyacrylonitrile is 35;

[0059] (2) Product a is washed 4 times with deionized water to obtain product b;

[0060] (3) Place the product b in an aqueous solution of hydrochloric acid whose ma...

Embodiment 3

[0064] A kind of preparation method of the polymkeric substance containing diaminotriazine, the steps are as follows:

[0065] (1) After mixing polyacrylonitrile, dicyandiamide (structural formula as shown in formula (II)), ionic liquid containing imidazolium salt ions, and aluminum trichloride, first react at 65°C for 3 hours, and then at 85°C React for 3 hours, and finally react at 106°C for 3 hours, and obtain product a after cooling down, wherein the mass ratio of polyacrylonitrile, dicyandiamide and ionic liquid containing imidazolium salt ions is 1:0.4:30, in parts by weight , the addition of aluminum chloride is 5% of the addition of polyacrylonitrile; The structural formula of polyacrylonitrile is identical with embodiment 1, and the average value of n in the molecular chain of polyacrylonitrile is 50;

[0066] (2) Product a is washed 5 times with deionized water to obtain product b;

[0067] (3) The product b is placed in an aqueous solution of hydrochloric acid whos...

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Abstract

The invention relates to a polymer containing diaminotriazine and a preparation method thereof. A cyano-containing polymer and dicyandiamide are subjected to a catalytic reaction by chloride in a non-aqueous solvent to obtain the polymer containing diaminotriazine, wherein the cyano-containing polymer has the following structural formula defined in the specification, wherein in the formula, R1 andR2 are the same or different and are defined in the specification, and x, y, m, z, f and k are each an integer more than or equal to 0. The dicyandiamide has the following structural formula definedin the specification; the finally prepared polymer containing diaminotriazine has the following structural formula defined in the specification, wherein in the formula, p is an integer more than or equal to 10, q is an integer more than or equal to p, q+p=n, and R1 and R2 are the same as R1 and R2 in the cyano-containing polymer. The method is simple and the synthetic materials are easy to obtain.The finally prepared polymer containing diaminotriazine has the advantages of high thermal stability and good compatibility with the polymer, and is wide in application fields.

Description

technical field [0001] The invention belongs to the field of diaminotriazine polymer preparation, and relates to a diaminotriazine-containing polymer and a preparation method thereof, in particular to a diaminotriazine-containing polymer synthesized from a cyano-group-containing polymer and dicyandiamide. Oxyzine polymers and methods for their preparation. Background technique [0002] The product synthesized by the reaction of polyacrylonitrile and dicyandiamide is often used as a polymer flocculant because the molecule contains both acidic and basic groups, and is widely used in the field of wastewater treatment. Document 1 (Reaction Products of Polyacrylonitrle with Dicyandiamide.Die Angewandte makromolekulare Chemie, 1986,141:57-67) reported that the product of the reaction of polyacrylonitrile and dicyandiamide is a product containing diaminotriazine, amido, carboxylic acid The mixture of group and amidine structure; Document 2 (Reaction product of polyacrylonitrile an...

Claims

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Application Information

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IPC IPC(8): C08F8/32C08F120/44C08F220/44C08F279/04C02F1/00
CPCC02F1/00C08F8/32C08F120/44C08F220/44C08F279/04
Inventor 彭治汉何小春彭治权李永林顾湘明义有华彭斌义芝兴
Owner 湖南美莱珀科技发展有限公司
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