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Hyperbranched polyborate fluorescent material and preparation method thereof

A technology of polyborates and fluorescent materials, applied in the directions of luminescent materials, chemical instruments and methods, etc., can solve problems such as toxicity, limiting compound development and application, quenching, etc.

Active Publication Date: 2021-09-10
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both of the above two substances contain aromatic structures. On the one hand, this structure is highly toxic to normal cells. On the other hand, the existence of aromatic structures will also cause the phenomenon of "aggregation leading to quenching", which severely limits this type of Further development and application of compounds

Method used

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  • Hyperbranched polyborate fluorescent material and preparation method thereof
  • Hyperbranched polyborate fluorescent material and preparation method thereof
  • Hyperbranched polyborate fluorescent material and preparation method thereof

Examples

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example 1

[0032]First, add 1,3-propanediol and tripropyl borate in a molar ratio of 1.8:1 into a three-neck round-bottomed flask and mix them. Under nitrogen protection, react at 50-100°C for 3-5 hours, and react at 100-150°C After 3-5 hours, the reaction is stopped at 150-220°C for 3-5 hours until no distillate is obtained, and the hyperbranched polyborate fluorescent material is obtained after cooling to room temperature.

example 2

[0034] First, add 1,4-butanediol and tributyl borate into a three-necked round-bottomed flask with a molar ratio of 2:1 and mix them. Under nitrogen protection, react at 50-100°C for 3-5 hours, ℃ for 3-5 hours, and 150-220 ℃ for 3-5 hours to stop the reaction when there is no distillate, and cool to room temperature to obtain the hyperbranched polyborate fluorescent material.

example 3

[0036] First, add 1,5-pentanediol and triisopropyl borate in a molar ratio of 2.3:1 into a three-necked round-bottomed flask and mix them. Under nitrogen protection, react at 50-100°C for 3-5 hours, React at 150°C for 3-5 hours, and stop the reaction at 150-220°C for 3-5 hours until there is no distillate, and cool to room temperature to obtain a hyperbranched polyborate fluorescent material.

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Abstract

The invention relates to a hyperbranched polyborate fluorescent material and a preparation method thereof. Under the protection of N2, trialkyl borate and dihydric alcohol are subjected to transesterification condensation polymerization according to a certain molar ratio by adopting a simple one-pot method to prepare the trialkyl borate dihydric alcohol. The preparation method comprises the following steps: firstly, uniformly mixing reaction raw materials, then carrying out stepped heating in a temperature range of 50-220 DEG C, carrying out a reaction, stopping the reaction until no distillate exists, and cooling to room temperature, so as to obtain the hyperbranched polyborate fluorescent material. The synthesized hyperbranched polyborate has good biocompatibility and low cytotoxicity, can emit blue, green and red fluorescence according to different excitation wavelengths, and has a very wide application prospect in the fields of cell imaging, drug controlled release and the like. In addition, the synthesis method has the advantages of being simple in process, controllable in process, environmentally friendly, beneficial to industrial production and the like.

Description

technical field [0001] The invention belongs to the field of polymer luminescent materials, and relates to a hyperbranched polyboric ester fluorescent material and a preparation method. Background technique [0002] In recent years, non-traditional aggregation-induced luminescence materials have good biocompatibility and degradability compared with traditional aggregation-induced luminescence materials containing aromatic rings, especially hyperbranched polymers due to their highly branched topology, unique physical The chemical properties and simple preparation process have attracted the attention of researchers, such as literature (Liu Lu, Wang Shaofei, Wang Yuehui, Jia Dandan, Wang Dongjun, research on the synthesis and fluorescence properties of hyperbranched polyamide-amine, Science Technology and Engineering, 2013, 13(18):5090-5094,5120.) introduced a preparation method of hyperbranched polyamidoamine and its fluorescence properties; patent CN201810526675.8 discloses a...

Claims

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Application Information

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IPC IPC(8): C08G79/08C09K11/06
CPCC08G79/08C09K11/06C09K2211/14
Inventor 颜红侠郭留龙刘锐闫立蓉何嫣赟孙语遥
Owner NORTHWESTERN POLYTECHNICAL UNIV