A kind of synthetic method of water-based aliphatic hyperbranched polyester polymer dye

A technique of hyperbranched polyester and its synthesis method, which is applied in the fields of dyeing, organic dyes, textiles, and papermaking, and can solve the problems of polymer dye preparation and application that have not been reported, so as to improve the utilization rate of dyestuffs and improve the color fastness , the effect of easy synthesis

Inactive Publication Date: 2017-01-04
山东巨业精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, the preparation and application of polymer dyes developed from water-based hyperbranched polyester have not been reported.

Method used

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  • A kind of synthetic method of water-based aliphatic hyperbranched polyester polymer dye
  • A kind of synthetic method of water-based aliphatic hyperbranched polyester polymer dye
  • A kind of synthetic method of water-based aliphatic hyperbranched polyester polymer dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1: Add 9 g of 1,4-butanediol, 187.6 g of 2,2-dimethylol propionic acid, and 1 g of catalyst p-toluenesulfonic acid into a reactor equipped with a stirring, heating and condensing device. Nitrogen, the temperature was slowly raised to 140°C, and the reaction was carried out for 4 hours. During the reaction, the generated water was removed under reduced pressure. Cool down to room temperature after completion of the reaction to obtain an aliphatic hyperbranched polyester (hydroxyl-terminated hyperbranched polyester) whose terminal group is a hydroxyl group.

[0035] Step 2: Add 200 g of N,N-dimethylformamide and 78.4 g of maleic anhydride to the hydroxyl-terminated hyperbranched polyester prepared in Step 1, raise the temperature to 90° C., and react for 2 hours. Cool to 70 DEG C after completion of reaction, add deionized water 500g, and be that the pH of 30% sodium hydroxide aqueous solution regulation system is 10~11 with mass concentration, obtain the aliphatic h...

Embodiment 2

[0039] Step 1: Add 7.6g of propylene glycol, 187.6g of 2,2-dimethylolpropionic acid, 1.5g of catalyst p-toluenesulfonic acid into the reactor equipped with stirring, heating and condensing devices, and slowly raise the temperature to 145° C., reacted for 5 hours, and removed the generated water under reduced pressure during the reaction. Cool down to room temperature after completion of the reaction to obtain an aliphatic hyperbranched polyester (hydroxyl-terminated hyperbranched polyester) whose terminal group is a hydroxyl group.

[0040] Step 2: Add 250 g of N,N-dimethylformamide and 58.8 g of maleic anhydride to the hydroxyl-terminated hyperbranched polyester prepared in Step 1, raise the temperature to 100° C., and react for 4 hours. Cool to 70 DEG C after completion of reaction, add deionized water 600g, and be that the pH of 30% potassium hydroxide aqueous solution regulation system is 10~11 with mass concentration, obtain the carboxyl-modified aliphatic hyperbranched p...

Embodiment 3

[0044] Step 1: Add 9.2 g of glycerol, 120.6 g of 2,2-dimethylolpropionic acid, and 1.3 g of catalyst p-toluenesulfonic acid into a reactor equipped with a stirring, heating and condensing device, and feed in nitrogen, Slowly raise the temperature to 140°C and react for 6 hours. During the reaction, the generated water is removed under reduced pressure. Cool down to room temperature after completion of the reaction to obtain an aliphatic hyperbranched polyester (hydroxyl-terminated hyperbranched polyester) whose terminal group is a hydroxyl group.

[0045] Step 2: Add 210 g of N,N-dimethylformamide and 49 g of maleic anhydride to the hydroxyl-terminated hyperbranched polyester prepared in Step 1, raise the temperature to 90° C., and react for 2.5 hours. After the reaction was completed, the temperature was lowered to 65° C., 470 g of deionized water was added, and the pH of the system was adjusted to 10 to 11 with a 30% aqueous sodium hydroxide solution to obtain a carboxyl-mod...

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Abstract

The invention discloses a synthesis method for waterborne aliphatic hyperbranched polyester type polymer dye and belongs to the technical field of fine chemical industry. The waterborne aliphatic hyperbranched polyester type polymer dye is obtained through the following steps: enabling 2,2-dimethylol propionic acid and a small molecule polyhydroxy compound to react under the action of a catalyst according to a certain mole ratio so as to obtain hydroxyl-terminated hyperbranched polyester; modifying hydroxyl-terminated hyperbranched polyester through acid anhydride; enabling hyperbranched polyester modified by acid anhydride to react with reactive dye so as to obtain the waterborne aliphatic hyperbranched polyester type polymer dye. By adopting the waterborne aliphatic hyperbranched polyester type polymer dye prepared through the synthesis method disclosed by the invention, the problems that dye is poor in binding fastness and residual dye in waste liquid is high in concentration in the conventional leather manufacturing and fur industry are solved, colour fasteness, washing resistance and the like of leather products are effectively improved, the utilization ratio of dye is increased and the content of dye in dyeing waste liquid is reduced.

Description

technical field [0001] The invention relates to a method for preparing polymer dyes, in particular to a method for synthesizing water-based aliphatic hyperbranched polyester polymer dyes, and belongs to the technical field of fine chemicals. Background technique [0002] Dyeing is an important process in the process of leather product processing. Through dyeing, leather products can be endowed with bright colors and beautiful appearance, which can meet the aesthetic needs of consumers and increase the added value of products. Generally, the dyeing of leather products should meet the following requirements: bright, bright, clear and beautiful color; uniform color, colorless; high fastness, not easy to change color, etc. At present, acid dyes and direct dyes in the textile industry are mainly used for dyeing in the tanning industry. The hydrophilic groups of these dyes are sulfonate groups, which can only interact with skin collagen fibers in the form of ionic bonds, hydrogen ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/52C08G63/20D06P1/52D06P3/32D06P1/38C09B69/10
Inventor 李雪梅高鑫靳丽强王强姜秀溪甘霖张振岭
Owner 山东巨业精细化工有限公司
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