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Star copolymer of aniline oligomer and polyethylene glycol and preparation method thereof

A technology of star-shaped copolymer and polyethylene glycol is applied in the field of aniline oligomer and polyethylene glycol star-shaped copolymer and its preparation, and can solve the problems of unbranched star-shaped copolymer and the like

Active Publication Date: 2013-03-27
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem that aniline oligomer and polyethylene glycol monomethyl ether cannot be branched to obtain a star copolymer as a linear monofunctional molecular chain

Method used

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  • Star copolymer of aniline oligomer and polyethylene glycol and preparation method thereof
  • Star copolymer of aniline oligomer and polyethylene glycol and preparation method thereof
  • Star copolymer of aniline oligomer and polyethylene glycol and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0136] Add 200mL of anhydrous tetrahydrofuran into a 500mL single-necked flask, and add 1.84g (5.0mmol) of aniline tetramer (see figure 1 , figure 2 , image 3 shown) and 1.01g (10.0mmol) of triethylamine, placed in an ice bath (0°C) and stirred for 30min; 1.31g (6.0mmol) of 2,4,6-trimethylbenzenesulfonyl chloride was dissolved in 50mL of anhydrous Tetrahydrofuran was placed in a constant pressure dropping funnel and dropped into the above mixed solution. After removing the ice bath, seal the reaction at 25°C for 12 hours, then pour the reaction mixture into a large amount of 0.1mol / L hydrochloric acid, filter and wash the filter cake with ether, and finally wash it with distilled water three times to remove ether, and finally dry it at temperature After drying at 50°C for 12 hours, the sulfonamide intermediate was obtained.

[0137] Add 200mL of distilled water to a 500mL three-necked flask, add 2.20g (4.0mmol) of sulfonamide intermediate product and 0.36g (1.0mmol) of ce...

Embodiment 2

[0141] Add 400mL of anhydrous tetrahydrofuran into a 1000mL single-necked flask, add 3.68g (10.0mmol) of aniline tetramer and 2.02g (20.0mmol) of triethylamine, and stir in an ice bath (0°C) for 30min; mmol) 2,5-dimethylbenzenesulfonyl chloride was dissolved in 100 mL of anhydrous tetrahydrofuran, placed in a constant pressure dropping funnel and dropped into the above mixed solution. After removing the ice bath, seal the reaction at 20°C for 12 hours, then pour the reaction mixture into a large amount of 0.1mol / L hydrochloric acid, filter and wash the filter cake with ether, and finally wash it with distilled water three times to remove ether, and finally dry it at temperature After drying at 50°C for 12 hours, the sulfonamide intermediate was obtained.

[0142] Add 400mL of distilled water to a 1000mL three-necked flask, add 4.30g (8.0mmol) of sulfonamide intermediate product and 0.46g (1.2mmol) of cetyltrimethylammonium bromide, stir to disperse and raise the temperature to...

Embodiment 3

[0146] Add 200mL of anhydrous tetrahydrofuran into a 500mL single-necked flask, add 2.76g (5.0mmol) of aniline hexamer and 1.01g (10.0mmol) of triethylamine, and stir in an ice bath (0°C) for 30min; mmol) 2,4-dimethylbenzenesulfonyl chloride was dissolved in 50 mL of anhydrous tetrahydrofuran, placed in a constant pressure dropping funnel and dropped into the above mixed solution. After removing the ice bath, seal the reaction at 30°C for 15 hours, then pour the reaction mixture into 0.1mol / L hydrochloric acid, filter and wash the filter cake with diethyl ether, and finally wash it with distilled water three times to remove diethyl ether, and finally dry it at a temperature of After drying at 50°C for 12 hours, the sulfonamide intermediate was obtained.

[0147] Add 200mL of distilled water to a 500mL three-necked flask, add 2.89g (4.0mmol) of sulfonamide intermediate product and 0.23g (0.6mmol) of hexadecyltrimethylammonium bromide, stir to disperse and raise the temperature ...

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Abstract

The invention discloses a star copolymer of aniline oligomer and polyethylene glycol and a preparation method thereof and belongs to the field of preparation of organic polymer material copolymer. Homolog of methyl benzene sulfonyl chloride is taken as the midbody. The characteristic that the benzene ring of the homolog can be connected with a plurality of methyl groups is utilized and the benzene ring is respectively connected with polyethylene glycol monomethyl ether molecular chains. Thereby, star copolymer the arm number of which is controllable of polyethylene glycol is obtained. The invention solves the problem that as linear monofunctional molecular chain, aniline oligomer and polyethylene glycol monomethyl ether are incapable of branching to generate star copolymer. According to various tests, by adopting the method, the target product can be successfully obtained. In addition, the operation is simple and convenient, the cost of raw materials is low and the method is easy to implement.

Description

technical field [0001] The invention belongs to the field of preparation of organic polymer material copolymers, and in particular relates to aniline oligomers and polyethylene glycol star copolymers and a preparation method thereof. Background technique [0002] As a common conductive polymer material, polyaniline has special properties such as electrochromism (P.R.Somani, S.Radhakrishnan, Mater.Chem.Phys., 2002, 77, 117; X.Zeng, T.Ko, Polymer,1998,39,1187), and has attracted much attention among many conductive polymers. The unique advantages of polymer materials as electrochromic materials are that such materials have strong molecular designability, high contrast, short response time, and high coloring efficiency, and have good application prospects. [0003] In practical electrochromic devices, electrochromic materials need to be used in conjunction with ion-conducting materials (P.R.Somani, S.Radhakrishnan, Mater.Chem.Phys., 2002, 77, 117), and electrochromic materials...

Claims

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Application Information

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IPC IPC(8): C08G65/48
Inventor 杨继萍卢伟涛赵飞飞张广萌
Owner BEIHANG UNIV
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