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Polyoxyethylene polyoxypropylene amine ether and carboxylic acid polymers, and preparation methods and application thereof

A technology of polyoxyethylene polyoxypropylene amine ether and polycarboxylic acid, which is applied in the field of functional polymer material preparation, can solve the problems of poor suspension, low stability, etc. Effect

Pending Publication Date: 2021-10-22
JIAHUA CHEM MAOMING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved in the present invention is to overcome the disadvantages that the traditional polycarboxylate dispersant in the prior art causes pesticide formulations to have lower stability and poor suspension, thereby providing a polyoxyethylene polyoxygen Allylamine ether, carboxylic acid polymer, preparation method and application

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  • Polyoxyethylene polyoxypropylene amine ether and carboxylic acid polymers, and preparation methods and application thereof
  • Polyoxyethylene polyoxypropylene amine ether and carboxylic acid polymers, and preparation methods and application thereof
  • Polyoxyethylene polyoxypropylene amine ether and carboxylic acid polymers, and preparation methods and application thereof

Examples

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Effect test

Embodiment 1

[0073] This embodiment provides a kind of polyoxyethylene polyoxypropylene amine ether, its structural formula is as shown in the following formula:

[0074]

[0075] Its preparation method comprises the following steps:

[0076] (1) Mix 76kg (1Kmol) of ethylene glycol methyl ether and 5.6kg of basic catalyst KOH, raise the temperature to 100°C, add 88kg (2Kmol) of ethylene oxide and 116kg (2Kmol) of propylene oxide, after 1h of feeding The reaction was continued at 100°C for 3 hours to obtain 280 kg of intermediate 1. The degree of polymerization of EO in intermediate 1 was 2, the degree of polymerization of PO was 2, and the number average molecular weight was 280 as tested by H-NMR spectrometer.

[0077] (2) Get 238kg of thionyl chloride (2Kmol) and dissolve it in 156kg of dimethyl sulfoxide to obtain a thionyl chloride solution. Put 280kg of intermediate 1 and 276kg of potassium carbonate (2Kmol) in 500L of dimethylsulfoxide, add the above-mentioned thionyl chloride so...

Embodiment 2

[0084] This embodiment provides a kind of polyoxyethylene polyoxypropylene amine ether, its structural formula is as shown in the following formula:

[0085]

[0086] Its preparation method comprises the following steps:

[0087] (1) Mix 90kg (1Kmol) of ethylene glycol ethyl ether and 5.6kg of basic catalyst KOH, raise the temperature to 110°C, add 440kg (10Kmol) of ethylene oxide and 290kg (5Kmol) of propylene oxide, and react after 2 hours of feeding After 4 hours, 820kg of intermediate 1 was obtained. The degree of polymerization of EO in intermediate 1 was 10, that of PO polymer was 5, and the number average molecular weight was 800 according to the H NMR spectrometer.

[0088] (2) Get 476kg of thionyl chloride (4Kmol) and dissolve it in 250kg of dichloromethane to obtain a thionyl chloride solution. Put 820kg of intermediate 1 (1Kmol) and 552kg of potassium carbonate (4Kmol) in 800L of dichloromethane, add the above-mentioned thionyl chloride solution dropwise, react at...

Embodiment 3

[0095] This embodiment provides a kind of polyoxyethylene polyoxypropylene amine ether, its structural formula is as shown in the following formula:

[0096]

[0097] Its preparation method comprises the following steps:

[0098] (1) Mix 104kg (1Kmol) of ethylene glycol propyl ether and 5.6kg of basic catalyst KOH, raise the temperature to 105°C, add 220kg (5Kmol) of ethylene oxide and 174kg (3Kmol) of propylene oxide, and finish adding the materials after 1h After 4 hours of reaction, 498 kg of intermediate 1 was obtained. The degree of polymerization of EO in intermediate 1 was 5, that of PO polymer was 3, and the number average molecular weight was 500, as tested by H-NMR spectrometer.

[0099] (2) Get 357kg of thionyl chloride (3Kmol) and dissolve it in 200kg of acetone to obtain a thionyl chloride solution. Put 498kg of intermediate 1 (1Kmol) and 414kg of potassium carbonate (3Kmol) in 600L of acetone, add the above-mentioned thionyl chloride solution dropwise, react ...

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Abstract

The invention belongs to the technical field of preparation of functional polymer materials, and particularly relates to polyoxyethylene polyoxypropylene amine ether and carboxylic acid polymers, and preparation methods and application thereof. The polyoxyethylene polyoxypropylene amine ether has a structure as shown in a formula (III) which is described in the specification. In the formula (III), p is an integer in a range of 2 and 4, q is an integer in a range of 0 and 2, m is an integer in a range of 2 and 5, and n is an integer in a range of 2 and 10. The polyoxyethylene polyoxypropylene amine ether has unsaturated alkene ester with double arms and an amine ether structure, and is used as a raw material for synthesizing the carboxylic acid polymers with excellent dispersibility and stability on pesticides.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional polymer materials, and in particular relates to a polyoxyethylene polyoxypropylene amine ether, a carboxylic acid polymer, a preparation method and an application. Background technique [0002] As an important means of preventing pests and weeds and protecting crops, pesticides play an irreplaceable role in agricultural production. However, with the continuous enhancement of people's awareness of environmental protection and safety, the issue of pesticide pollution has become an environmental issue that people are increasingly concerned about. The research hotspot in the field of pesticide formulations is to reduce the pollution of pesticides to the environment through the innovation of pesticide formulation technology. The development of pesticide formulations is developing towards safe, green and low-cost water-based formulations and dust-free solid particle formulations. Amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/337C08G65/333C08G65/332C08G65/28C08F283/06C08F220/06C08F212/08C08F212/14C08F222/02C08F222/06C08F220/58C08F226/10C07C219/08C07C213/06B01F17/34A01N25/30A01N25/04A01N25/14C09K23/34
CPCC08G65/337C08G65/33396C08G65/3322C08G65/2609C08F283/065C07C219/08C07C213/06A01N25/30A01N25/04A01N25/14C08F220/06C08F212/08C08F222/08C08F212/30C08F222/02C08F222/06C08F220/58C08F226/10
Inventor 周苗苗李玉博
Owner JIAHUA CHEM MAOMING
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