Perfluoro propionyl tripolycyanamide derivate and preparation process thereof

A technology of perfluoropropionyl and melamine, which is applied in organic chemistry and other fields, can solve the problems of poor weather resistance and low temperature resistance, and achieve the effect of reducing free radical concentration and high thermal stability

Inactive Publication Date: 2009-04-22
SHANDONG HUAXIA SHENZHOU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, melamine also has its inherent disadvantages: low temperature resistance and poor weather resistance
However, melamine derivatives containing perfluoropropionyl substituents have not been reported yet.

Method used

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  • Perfluoro propionyl tripolycyanamide derivate and preparation process thereof
  • Perfluoro propionyl tripolycyanamide derivate and preparation process thereof
  • Perfluoro propionyl tripolycyanamide derivate and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Put 12.6g (0.1mol) of melamine and 0.58g of KF in a 500ml three-necked round-bottom flask equipped with an ice-salt bath, mechanical stirring, and nitrogen protection device, add 250ml of anhydrous acetonitrile solvent to dissolve, keep the temperature at -10°C, and stir vigorously 104.8g (0.63mol) of hexafluoropropylene oxide was slowly passed through, and the passage was completed within 2 to 24 hours. After the passage was completed, continue to stir for 2 hours. After washing with methanol for many times, and then using deionized water for several times, vacuum 60 After drying at °C, a colorless oily liquid product was obtained with a yield of 94%.

[0025] The product is tested by infrared spectrometer: at 1776cm -1 The characteristic absorption of the carbonyl group in the amide group substituted by α-fluorine at 979cm -1 There is a weak but sharp CF at 3 Characteristic absorption, while at 1000~1350cm -1 Then there is a continuous characteristic absorption of ...

Embodiment 2

[0031] Put 12.6g (0.1mol) of melamine and 0.58g of KF in a 1000ml three-necked round-bottom flask equipped with an ice-salt bath, mechanical stirring, and nitrogen protection device, add 500ml of anhydrous acetonitrile solvent to dissolve, keep the temperature at -25°C, and stir vigorously 104.8g (0.63mol) of hexafluoropropylene oxide was slowly passed through, and the passage was completed within 2 to 24 hours. After the passage was completed, continue to stir for 2 hours. After washing with methanol for many times, and then using deionized water for several times, vacuum 60 After drying at °C, a colorless oily liquid product was obtained with a yield of 97%. Others are the same as embodiment 1.

Embodiment 3

[0033] Put 12.6g (0.1mol) of melamine and 0.58g of KF in a 500ml three-necked round-bottom flask equipped with an ice-salt bath, mechanical stirring, and nitrogen protection device, add 250ml of anhydrous acetonitrile solvent to dissolve, keep the temperature at -25°C, and stir vigorously 104.8g (0.63mol) of hexafluoropropylene oxide was slowly passed through, and the passage was completed within 2 to 24 hours. After the passage was completed, continue to stir for 2 hours. After washing with methanol for many times, and then using deionized water for several times, vacuum 60 After drying at °C, a colorless oily liquid product was obtained with a yield of 96%. Others are the same as embodiment 1.

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Abstract

The invention belongs to fluorine-containing fine chemicals, and involve a formula such as structure (1), in which x, p, z = 0,1, or 2, and x + y = 2, p + q = 2, e + z = 2, x , p, z not at same time equal to 2, the Rf described as structure (2) with perfluoro propionyl- substituent group melamine derivatives and their preparation methods. It uses six fluoride epoxy propane gas and melamine under -25 to 150 deg and organic solvent and catalyst conditions to take solution condensation reaction, time of 0.5 to 48 hours. Such compounds have good temperature resistance, weather bear ability, chemical stability and low surface tension.

Description

technical field [0001] The invention belongs to the field of fluorine-containing fine chemicals, and relates to melamine derivatives and a preparation method thereof, in particular to a class of melamine derivatives with perfluorinated short-chain hydrocarbons and a preparation method thereof. The body is prepared by condensation reaction in the presence of solvent and catalyst. Background technique [0002] Melamine is a widely used organic chemical intermediate product with a uniform structure. The main use is as a raw material for the production of melamine-formaldehyde resin; Plastic powder, paper treatment agent, flame retardant, etc. CN1388803 discloses a method for preparing melamine from urea, which is carried out by reacting urea or gas thermal decomposition products in the presence of a catalyst at high temperature. However, melamine also has its inherent disadvantages: low temperature resistance and poor weather resistance. However, due to the small atomic radi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/70
Inventor 张恒秦胜张永明高洪光
Owner SHANDONG HUAXIA SHENZHOU NEW MATERIAL
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