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A kind of polymerization method of reactive black dye kn-b

A high-molecularization and reactive black technology, which is applied in the field of functional polymer material synthesis, can solve the problems of poor adaptability and diversity, high cost, and influence on polymerization reactions, and achieve the effects of strong adaptability, high conversion rate, and pure products

Active Publication Date: 2021-06-11
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

One modification method is to convert dye molecules into polymerizable monomers and copolymerize them with other olefin monomers, but this method is costly and easily affects key polymerization reactions, and its adaptability and diversity are poor

Method used

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  • A kind of polymerization method of reactive black dye kn-b
  • A kind of polymerization method of reactive black dye kn-b
  • A kind of polymerization method of reactive black dye kn-b

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Embodiment Construction

[0019] Below in conjunction with embodiment the present invention is described in further detail.

[0020] Preparation of functional initiators:

[0021] With active black KN-B as the starting material, this material has been commercialized, so its preparation has a ready-made method, which will not be repeated here. The following are the specific preparation steps:

[0022] 1) Dissolve 0.1mol active black KN-B in 300ml water, gradually add 0.22mol ethanolamine under stirring, control the temperature of the reaction solution in the range of 50-55°C, and the reaction time is 3-4 hours, and cool to 4-4 hours after the reaction is completed. 8°C, the product will be precipitated in the form of internal salt, after filtering, wash with a small amount of ethanol;

[0023] 2) Disperse the product obtained in the previous step reaction in 300ml of absolute ethanol, add 0.2mol of solid NaOH and 0.2mol of isooctyl glycidyl ether under stirring, and react at 55-60°C for 4-5 hours to ob...

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Abstract

The invention relates to a polymerization method of a reactive black KN-B dye. Synthesize an amphiphilic compound containing a reactive black group and a tertiary amine structure, which can be used as an initiator for free radical polymerization, and its tertiary amine can undergo redox reactions with potassium persulfate at room temperature to generate active free radicals many times , on the water / oil interface, both the oil-soluble monomer isoprene polymerization and the water-soluble monomer isopropylacrylamide polymerization can be initiated, so as to achieve the purpose of reactive black KN-B dye polymerization. The mode can make the functionalization and the polymerization reaction not interfere with each other, the degree of freedom of operation is large, there are many types of products, the polymerization reaction conditions are mild, and organic solvents and emulsifiers are not used, which meets the requirements of green chemistry.

Description

technical field [0001] The invention relates to the technical field of synthesis of functional polymer materials, in particular to a polymerized preparation technology of reactive black dyes, through which reactive black dye molecules can be introduced into polyolefin polymer materials to produce a New class of functional polymer materials and their related application technologies. Background technique [0002] Polyolefin is a very important general-purpose polymer material. It is formed by free radical polymerization of several olefin monomers. For different purposes, the structure can be adjusted according to the monomer copolymerization technology, so it is widely used. Initiators are essential in the preparation of polymer materials. The usual initiators are a class of compounds that can generate free radicals, such as oil-soluble peroxygen, azo initiators, and water-soluble persulfates. The use of an initiator must be coordinated with the specific polymerization react...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F279/02C08F220/54C08F4/04C08F4/40
CPCC08F4/04C08F4/40C08F279/02C08F220/54
Inventor 李艳张瑞丰李赛赛肖通虎龙能兵
Owner NINGBO UNIV
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