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Ionic liquid polymer containing imidazole in main chain and method for synthesizing same

A technology of imidazole ionic liquid and ionic liquid, applied in the field of ionic liquid polymer containing imidazole in the main chain and its synthesis

Inactive Publication Date: 2012-06-20
NORTHWEST NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ionic liquid polymer containing imidazole and its preparation method on the main chain have not been reported yet.

Method used

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  • Ionic liquid polymer containing imidazole in main chain and method for synthesizing same
  • Ionic liquid polymer containing imidazole in main chain and method for synthesizing same
  • Ionic liquid polymer containing imidazole in main chain and method for synthesizing same

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Embodiment Construction

[0056] The synthesis process of the ionic liquid polymer containing imidazole in the main chain of the present invention will be further illustrated below through specific experiments.

[0057] ①1,3-bis(2-hydroxyethyl)imidazolium chloride ionic liquid——[hhIm] + Cl - Synthesis

[0058] Equipped with magnetic stirring, reflux condenser, N 2 Add 100ml of absolute ethanol and 4.7g of metal sodium to the 250ml three-necked flask of the conduit, put the three-necked flask in an ice-water bath, and react for about 6 hours. After the reaction is completed, add 0.2mol of imidazole, and then add 0.42 mol of 2-chloroethanol (re-distilled under reduced pressure when used) was slowly added dropwise with a dropping funnel, reacted for 7h, took out the three-necked flask from the ice-water bath, reacted for 24h at 20°C, filtered to obtain a light yellow liquid, and used The methanol solvent and unreacted 2-chloroethanol were evaporated by a rotary evaporator, and washed several times wit...

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Abstract

The invention provides a synthetic method of ionic liquid polymer containing imidazole in main chain, comprising imidazole respectively reacting with 2-chlorohydrin and methyl chloroacetate to synthesize chloridized 1,3- bi(2-hydroxyethyl)imidazole ionic liquid and chloridized 1,3- bi(2-methoxy-2-oxyethyl)imidazole ionic liquid; the two ionic liquid being used as monomer to perform melt phase polycondensation in the present of catalyst SnCl2. The ionic liquid polymer has good conductivity property (conductivity: 5.4-7.2*10-5S / m.). Because the ionic liquid unit is induced, the new type polymer has application future in polyelectrolyte, gas separation film and so on.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and relates to a novel ionic liquid polymer with symmetrical functional groups and a synthesis method thereof, in particular to an ionic liquid polymer with imidazole in the main chain and a synthesis method thereof. Background technique [0002] As a green solvent and catalyst, ionic liquid is widely used in the fields of electrochemistry, organic synthesis, catalysis, extraction and separation, etc. . In recent years, more and more attention has been paid to the application of ionic liquids in the field of polymers. Combining the properties of ionic liquids with polymer materials is of great significance for the development of new functional polymer materials. Polymers containing ionic liquid structures have broad application prospects in solid electrolytes due to their good electrical conductivity. At present, polymers containing ionic liquids are mainly polymers with ionic liquid structure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/685C08G63/78C08G63/85
Inventor 熊玉兵吴称意王荣民胡登卫王云普
Owner NORTHWEST NORMAL UNIVERSITY
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