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A polymerization method of disperse scarlet dye s-bwfl

A S-BWFL, polymerization technology, applied in the field of functional polymer material synthesis, can solve the problems of high cost, poor adaptability and diversity, affecting the polymerization reaction, etc., to achieve high conversion rate, strong adaptability, and pure product. Effect

Active Publication Date: 2021-04-30
NINGBO UNIV
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  • Summary
  • 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 polymerization method of disperse scarlet dye s-bwfl
  • A polymerization method of disperse scarlet dye s-bwfl
  • A polymerization method of disperse scarlet dye s-bwfl

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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] Using an intermediate product in the preparation of disperse scarlet dye as a 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 of azo dye in 300ml of dioxane, gradually add 0.21mol of benzenesulfonyl chloride and 0.21mol of pyridine under stirring, control the temperature of the reaction solution within the range of 30-35°C, and the reaction time within 1-2 hours After the reaction is completed, pour the reaction solution into cold water, filter the product after precipitation, wash the precipitation with water, and then dry it for later use;

[0023] 2) Dissolve 0.2mol of octylamine in 100ml of absolute ethanol, slowly add 0.2mol of propane sultone under stirring...

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Abstract

The present invention relates to a polymerization method for dispersing scarlet dye S-BWFL. Synthesize an amphiphilic compound containing dispersed red azo group and tertiary amine structure, which can be used as an initiator of free radical polymerization. Free radicals can initiate the polymerization of the oil-soluble monomer vinyl chloride and the water-soluble monomer β-hydroxyethyl acrylate on the water / oil interface, thereby achieving the purpose of polymerizing the disperse scarlet dye S-BWFL. This mode can make functionalization and polymerization do not interfere with each other, has a large degree of freedom of operation, a variety of products, mild polymerization conditions, no organic solvents and emulsifiers, and 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 disperse scarlet S-BWFL dye, through which the disperse scarlet dye molecules can be introduced into polyolefin polymer materials, Thus a new class of functional polymer materials and related application technologies are produced. 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 poly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/06C08F220/20C08F4/04
CPCC08F4/04C08F214/06C08F220/20
Inventor 李艳张瑞丰李赛赛肖通虎龙能兵
Owner NINGBO UNIV
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