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A kind of polyazide glycidyl ether and its preparation method and application

A technology of glycidyl ether and azidation, which is applied in the petroleum industry, organic chemistry, fuel, etc., can solve the problems of poor miscibility of fuel oil, etc., and achieve the effects of reducing exhaust emissions, improving emission effects, and increasing solubility

Active Publication Date: 2019-06-04
LIMING RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experiments using this azide compound found that when 1gGAP was added to 50g of fuel oil, stirred and mixed and then left to stand, stratification appeared, and the miscibility between GAP and fuel oil was very poor.

Method used

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  • A kind of polyazide glycidyl ether and its preparation method and application
  • A kind of polyazide glycidyl ether and its preparation method and application
  • A kind of polyazide glycidyl ether and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0024] (1) Keep the system temperature at 50~60℃, add 7.4g butanol to the reactor after nitrogen replacement, and 0.52g SnCl dissolved in 50ml 4 And 1.14g CF 3 COOH in toluene solution, 18.5g epichlorohydrin monomer (ECH), heat preservation and reaction for 2h. After the completion of the reaction, 22.3 g of PECH was obtained after washing with water, distillation under reduced pressure, and filtration. According to GPC analysis, the number average molecular weight Mn=286.

[0025] (2) Put the above 22.3g PECH into the reactor, add the same quality DMF, and add 16g NaN 3 , 0.03g tetrabutylammonium bromide, react at 100°C for 10h, after the reaction is finished, washed with water and dried to obtain a light yellow liquid GAP. The infrared spectrum and nuclear magnetic resonance spectrum of the product are attached to the instructions respectively. figure 1 And figure 2 . After analysis, the product number average molecular weight M n =309; hydroxyl value: 178.59 mgKOH / g; N conte...

Embodiment 2

[0028] (1) Add 50ml of toluene into the reactor after nitrogen replacement, keep the system temperature at 0~10℃, add 18.6g dodecanol, 0.52g BF 3 ·OEt 2 , 46.25g epichlorohydrin (ECH) monomer, continue to react for 5h. After the completion of the reaction, 60.7 g of PECH was obtained after washing with water, distillation under reduced pressure, and filtration. According to GPC analysis, the number average molecular weight was Mn=642.

[0029] (2) Put the above PECH into the reactor, add DMSO of the same quality, and add 40g NaN 3 , 0.06g of lithium chloride catalyst was reacted at 100°C for 10h. After the reaction was completed, 58.4g of light yellow liquid GAP was obtained after washing and drying. After analysis, the product number average molecular weight Mn=674; hydroxyl value: 82.7mgKOH / g; N content: 32.04%.

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Abstract

The invention discloses a GAP (glycidyl azide polymer) as well as a preparation method and an application thereof. GAP adopts the structure shown in the specification, wherein n refers to the number of structural units in GAP and ranges from 2 to 8; R refers to an aliphatic group, an alicyclic hydrocarbon group and an aromatic hydrocarbon group comprising hydrocarbons or an ether group comprising carbon-hydrogen-oxygen atoms, and the number of carbon atoms ranges from 1 to 15. GAP is prepared through polymerization of epichlorohydrin and azidation, has the good solubility in fuel oil and can play a relatively good combustion supporting role after a relatively small amount of GAP is added.

Description

Technical field [0001] The invention relates to the field of fuel oil, in particular to an additive for improving the combustion performance of fuel oil and a preparation method thereof. Background technique [0002] The harmful substances in automobile exhaust are mainly CO, nitrogen oxides, hydrocarbons and lead particles. There are many reasons for automobile exhaust, among which incomplete fuel combustion is one of the main reasons. Incomplete fuel combustion will produce a lot of pollutants, including a lot of fine particles with a diameter of less than 2.5 microns. [0003] In USP 4303414, alkyl azide compounds, polyglycidyl azide (GAP), BAMO, etc. are used as fuel gasoline and diesel fuel additives, and their volume fraction of fuel can be as high as 1%, and it is believed that 0.2%~ 0.4%. GAP is a polymer with hydroxyl groups at both ends, and contains 3-20 GAP structural units. Experiments with this azide compound found that adding 1g of GAP to 50g of fuel, stirring an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C247/04C10L1/238
CPCC07C247/04C10L1/238C10L2230/22
Inventor 白森虎刘杉钱露仝斌吉应旭杜丽媛龚红梅刘丹
Owner LIMING RES INST OF CHEM IND