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GAP (glycidyl azide polymer) as well as preparation method and application thereof

A technology of glycidyl ether and azidation, which is applied in the field of fuel oil, can solve the problems of poor miscibility of fuel oil, etc., and achieve the effects of reducing exhaust emissions, increasing solubility, and improving combustion efficiency

Active Publication Date: 2016-08-24
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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  • GAP (glycidyl azide polymer) as well as preparation method and application thereof
  • GAP (glycidyl azide polymer) as well as preparation method and application thereof
  • GAP (glycidyl azide polymer) as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Keep the temperature of the system at 50-60°C, add 7.4g of butanol to the reactor after nitrogen replacement, and dissolve 0.52g of SnCl in 50ml 4 and 1.14g CF 3 Toluene solution of COOH, 18.5g epichlorohydrin monomer (ECH), heat preservation reaction for 2h. After the reaction was completed, 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) Add the above 22.3g PECH into the reactor, add the same quality of DMF, add 16gNaN 3 , 0.03g tetrabutylammonium bromide, reacted at 100°C for 10h, after the reaction was completed, washed with water and dried to obtain a light yellow liquid GAP. The infrared spectrum and NMR spectrum of the product are respectively shown in the appendix of the instruction manual. figure 1 And attached figure 2 . After analysis, the product number average molecular weight M n =309; hydroxyl value: 178...

Embodiment 2

[0028] (1) Add 50ml of toluene to the reactor after nitrogen replacement, keep the system temperature at 0-10°C, add 18.6g of dodecanol, 0.52g of BF 3 ·OEt 2 , 46.25g epichlorohydrin (ECH) monomer, continue to react for 5h. After the reaction was completed, 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 Mn=642.

[0029] (2) Add the above PECH into the reactor, add the same mass of DMSO, add 40gNaN 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 with water 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 why automobiles produce exhaust gas, among which incomplete combustion of fuel is one of the main reasons. Incomplete fuel combustion will produce a lot of pollutants, including a large number of fine particles with a diameter of less than 2.5 microns. [0003] In USP 4303414, alkyl azide compounds, polyazide glycidyl ether (GAP), BAMO, etc. are used as fuel gasoline and diesel additive components, and their volume fraction in fuel can be as high as 1%, and it is considered that the best is 0.2%~ 0.4%. Wherein GAP is a polymer with hydroxyl groups at both ends, which contains 3-20 GAP structural units. The azide compound was us...

Claims

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Application Information

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Patent Type & Authority Applications(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
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