A kind of polymerization method of fluorescein dye

A high-molecularization and fluorescein technology, which is applied in the field of high-molecularization preparation of fluorescein dyes, can solve problems such as high cost, poor adaptability and diversity, and influence on polymerization reactions, and achieve high conversion rate, strong adaptability, and high-quality products. pure effect

Active Publication Date: 2021-05-18
NINGBO UNIV
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Problems solved by technology

Fluorescein can also be incorporated into polymer materials to make the material have fluorescent properties. One modification method is to convert fluorescein molecules into polymerizable monomers and copolymerize them with other olefin monomers, but this method is costly , it is easy to affect the key polymerization reaction, and its adaptability and diversity are poor

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  • A kind of polymerization method of fluorescein dye
  • A kind of polymerization method of fluorescein dye
  • A kind of polymerization method of fluorescein dye

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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 fluorescein dye 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 of fluorescein dye in 200ml of N,N-dimethylformamide solvent, then add 0.1mol of triethylamine, gradually add 0.1mol of acryloyl chloride under stirring, control the temperature of the reaction solution at 30-35 ℃ range, the reaction time is 2 to 3 hours, after the reaction is completed, pour the reaction solution into clean water, collect the precipitated matter and wash it with clean water several times to remove triethylamine hydrochloride and solvent, filter and dry in vacuum to obtain fluorescein dye derivative;

[0023] 2) Dissolve the fluorescein dye derivative obtained in the pr...

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Abstract

The invention relates to a polymerization method of fluorescein dye. Synthesize an amphiphilic compound containing a fluorescein 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 acrylonitrile polymerization and the water-soluble monomer acrylic acid polymerization can be initiated, so as to achieve the purpose of polymerizing the fluorescein dye. This mode can make the functionalization and the polymerization reaction interact No interference, large degree of freedom of operation, many types of products, mild polymerization reaction conditions, no organic solvents and emulsifiers, which meet the requirements of green chemistry.

Description

technical field [0001] The present invention relates to the technical field of synthesis of functional polymer materials, in particular to a polymerized preparation technology of fluorescein dyes. Through this new synthesis technology, fluorescein dye molecules can be introduced into polyolefin polymer materials, thereby producing 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 wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/08C08F220/06C08F4/40
CPCC08F4/40C08F265/08C08F220/06
Inventor 李艳张瑞丰李赛赛肖通虎龙能兵
Owner NINGBO UNIV
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