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Polymerization method of perylene diimide fluorochrome

A technology of polymerization and peryleneimide, which is applied in the field of polymerization preparation of peryleneimide fluorescent dyes, can solve the problems of weakening solid-state emission, being difficult to dissolve, and difficult to disperse, and achieves improved solubility and high preparation efficiency. , the effect of product purity

Active Publication Date: 2019-01-04
NINGBO UNIV
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Problems solved by technology

Due to their larger conjugated structure necessarily brings rigidity, making them difficult to dissolve, difficult to disperse, difficult to process, and in most cases, their large π-skeleton and strong π-π intermolecular interactions weaken their solid state emission

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  • Polymerization method of perylene diimide fluorochrome
  • Polymerization method of perylene diimide fluorochrome
  • Polymerization method of perylene diimide fluorochrome

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Embodiment Construction

[0020] Below in conjunction with embodiment the present invention is described in further detail.

[0021] Preparation of functional initiators:

[0022] With perylene imide as the starting raw material, there is a ready-made method for the preparation of this raw material compound, which will not be repeated here. The following are the specific preparation steps:

[0023] 1) Dissolve 0.1mol of peryleneimide and 0.2mol of KOH in 800ml of water, add 0.3mol of epichlorohydrin under stirring, heat and reflux for 4 to 5 hours, the product is continuously precipitated from the water phase, after the reaction is completed Cool to room temperature, collect the precipitated substance by filtration and wash with water several times to remove the generated potassium chloride, and then wash with methanol to remove excess epichlorohydrin;

[0024] 2) Redisperse the product obtained in the previous step reaction in 800ml of water, then add 0.25mol of sodium taurate, and control the reacti...

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Abstract

The invention relates to a polymerization method of perylene diimide fluorochrome. An amphiphilic compound containing perylene diimide fluorophores and a tertiary amine structure is synthesized, whichcan be used as an initiator for free radical polymerization; tertiary amine can be subjected to a redox reaction with potassium persulfate at the normal temperature to generate active free radicals multiple times, both oil-soluble monomer methyl acrylate polymerization and water-soluble monomer vinylpyrrolidone polymerization can be initiated on a water / oil interface, and then the the purpose ofpolymerizing the perylene diimide fluorochrome is achieved. By means of the mode, the functionalization and the polymerization reaction do not interfere with each other, the degree of freedom of operation is high, more kinds of products are obtained, the polymerization reaction conditions are mild, neither organic solvent nor emulsifier is needed, and the method meets 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 perylene imide fluorescent dyes. Through the new synthesis technology, perylene imide fluorescent dye molecules can be introduced into polyolefin polymers Materials, resulting in a new class of functional polymer materials and 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...

Claims

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Application Information

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IPC IPC(8): C08F265/04C08F226/10C08F4/40C08F120/14
CPCC08F4/40C08F120/14C08F265/04C08F226/10
Inventor 李艳张瑞丰李赛赛肖通虎龙能兵
Owner NINGBO UNIV
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