Method for synthesizing polyquaternary ammonium salt

A polyquaternary ammonium salt and synthesis method technology, which is applied in coatings, conductive coatings, epoxy resin coatings, etc., can solve the problems of high cost of use, incompatibility of epoxy resins, and large additions, so as to reduce orderly Sexuality and symmetry, improvement of antistatic performance, effect of improving exercise ability

Active Publication Date: 2020-01-24
NANJING FORESTRY UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are not only few types of polymer antistatic agents, but most of them are polymers with pendant quaternary ammonium salt groups on the side chains. It is difficult to meet the market demand by reducing the physical and chemical properties of the main resin material. Therefore, it is of great practical significance to develop the production technology of polymer antis

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  • Method for synthesizing polyquaternary ammonium salt
  • Method for synthesizing polyquaternary ammonium salt
  • Method for synthesizing polyquaternary ammonium salt

Examples

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Example Embodiment

[0034] Example 1

[0035] According to the mass percentages of the organic solvent, secondary amine, epihalohydrin and acid in Example 1 in Table 1, first, under nitrogen protection and room temperature water bath cooling, the organic solvent and secondary amine are mixed, and the epoxy halide is added dropwise under stirring. The addition reaction of propane is carried out. After the dropwise addition of epihalohydrin is completed, the reaction is continued for 0.5h to obtain a solution of tertiary amine compound; secondly, the solution of tertiary amine compound is heated for quaternization polymerization reaction, the reaction temperature is 50℃, and the reaction time is 25h. After the reaction is completed, a solution of polyquaternary ammonium hydrohalide is obtained; third, the obtained solution of polyquaternary ammonium hydrohalide is treated with a strong basic anion exchange resin until no halogen ions are detected in the liquid phase, and then filtered to obtain polyqua...

Example Embodiment

[0037] Example 2

[0038] According to the mass percentage of organic solvent, secondary amine, epihalohydrin and acid in Example 2 in Table 1, first, under nitrogen protection and room temperature water bath cooling, the organic solvent and secondary amine are mixed, and the epoxy halide is added dropwise under stirring. The addition reaction of propane is carried out. After the dropwise addition of the epihalohydrin is completed, the reaction is continued for 1.5 hours to obtain a solution of tertiary amine compound; secondly, the solution of tertiary amine compound is heated for quaternization polymerization reaction at a reaction temperature of 60°C and a reaction time of 20 hours. After the reaction is completed, a solution of polyquaternary ammonium hydrohalide is obtained; third, the obtained solution of polyquaternary ammonium hydrohalide is treated with a strong basic anion exchange resin until no halogen ions are detected in the liquid phase, and then filtered to obtain ...

Example Embodiment

[0039] Example 3

[0040] According to the mass percentages of the organic solvent, secondary amine, epihalohydrin and acid in Example 3 in Table 1, first, under nitrogen protection and room temperature water bath cooling, the organic solvent and secondary amine are mixed, and the epoxy halide is added dropwise under stirring. The addition reaction of propane is carried out. After the dropwise addition of epihalohydrin is completed, the reaction is continued for 2.5 hours to obtain a solution of tertiary amine compound; secondly, the solution of tertiary amine compound is heated for quaternization polymerization reaction at a reaction temperature of 65°C and a reaction time of 15 hours. After the reaction is completed, a solution of polyquaternary ammonium hydrohalide is obtained; third, the obtained solution of polyquaternary ammonium hydrohalide is treated with a strong basic anion exchange resin until no halogen ions are detected in the liquid phase, and then filtered to obtain...

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Abstract

The invention relates to a method for synthesizing a polyquaternary ammonium salt. According to the method, an organic solvent, secondary amine, epihalohydrin, acid, strong-base anion exchange resin and the like serve as raw materials, the polarity of the secondary amine is lowered through increasing chain length of a hydrocabon group carbon chain in the secondary amine, thus, the polarity of thepolyquaternary ammonium salt is lowered, and the polyquaternary ammonium salt with good intermiscibility with epoxy resin and good anti-electrostatic property is synthesized. A polyquaternary ammoniumsalt macromolecular antistat is developed for epoxy resin coating materials. The method has the characteristics that the energy consumption is low, the environmental pollution is light, the production process is simple and is short in rout, the investment of large-scale production is small, and the production efficiency is high, so that the industrialization prospect is good.

Description

technical field [0001] The invention relates to a synthesis method of polyquaternary ammonium salt, belonging to the technical field of polymer preparation. Background technique [0002] Polymer antistatic agents have attracted extensive attention due to their excellent antistatic properties. There are reports in the literature about the research on polymer antistatic agents for polymer materials such as nylon, PE, PP, ABS, PVC, polyurethane, polystyrene and polyoxymethylene, and the polymer antistatic agents that can be used for epoxy resin coatings are fresh. See report. At present, there are not only few types of polymer antistatic agents, but most of them are polymers with pendant quaternary ammonium salt groups on the side chains. Reducing the physical and chemical properties of the main resin material is difficult to meet market demand. Therefore, it is of great practical significance to develop a production technology for polymer antistatic agents with less dosage a...

Claims

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Application Information

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IPC IPC(8): C08G73/02C09D163/00C09D5/24
CPCC08G73/0213C09D5/24C09D163/00C08L79/02
Inventor 刘福生张端巍郜伟郭斌银鹏
Owner NANJING FORESTRY UNIV
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