Polymerization method of reactive black dye KN-B

A high-molecularization and reactive black technology, applied in the field of functional polymer material synthesis, can solve the problems of affecting the polymerization reaction, high cost, poor adaptability and diversity, etc., and achieve pure products, large operating freedom and strong adaptability Effect

Active Publication Date: 2019-01-04
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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  • Polymerization method of reactive black dye KN-B
  • Polymerization method of reactive black dye KN-B
  • Polymerization method of reactive black dye KN-B

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the embodiments.

[0020] Preparation of functional initiator:

[0021] Reactive black KN-B is used 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 0.1 mol of reactive black KN-B in 300 ml of water, gradually add 0.22 mol of ethanolamine under stirring, control the temperature of the reaction solution in the range of 50-55°C, and the reaction time within 3-4 hours. After the reaction is completed, cool to 4~ At 8°C, the product will precipitate in the form of internal salt, which is washed with a small amount of ethanol after filtration;

[0023] 2) Disperse the product obtained from the previous reaction in 300 ml of absolute ethanol, add 0.2 mol of solid NaOH and 0.2 mol of isooctyl glycidyl ether under stirring, and react at 55 to...

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Abstract

The invention relates to a polymerization method of reactive black dye KN-B. An amphiphilic compound containing a reactive black group and a tertiary amine structure is synthesized and can be used asan initiator for free radical polymerization, tertiary amine of the amphiphilic compound can have a redox reaction with potassium persulfate at normal temperature to generate active free radicals multiple times, the polymerization of oil-soluble monomers isoprene and the polymerization of water-soluble monomers isopropyl acrylamide can both be initiated on a water / oil interface, and therefore thepurpose of polymerizing the reactive black KN-B dye is achieved; in the mode, the functionalization and the polymerization reaction do not interfere with each other, the operation freedom degree is large, the types of products are various, the polymerization reaction conditions are mild, organic solvents or emulsifiers are not used, and the requirements for green chemistry are met.

Description

Technical field [0001] The invention relates to the technical field of functional polymer material synthesis, in particular to a polymerized preparation technology of reactive black dye. Through this new synthesis technology, reactive black dye molecules can be introduced into polyolefin polymer materials to produce a Class new functional polymer materials and related application technologies. Background technique [0002] Polyolefin is a very important general polymer material. It is formed by radical polymerization of several olefin monomers. For different purposes, the structure can be adjusted according to monomer copolymerization technology, so it is widely used. Initiators are indispensable in the preparation of polymer materials. The usual initiators are compounds that can generate free radicals, such as oil-soluble peroxygens, azo initiators, and water-soluble persulfates. The use of initiators must be matched with the specific polymerization reaction environment. Tradit...

Claims

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Application Information

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Patent Type & Authority Applications(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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