Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for rapidly preparing polyethyleneimine-tetrakis(hydroxymethyl)phosphonium chloride non-conjugated fluorescent polymer point at room temperature

A technology of tetrakis hydroxymethyl phosphorus chloride and polyethyleneimine, which is applied in the field of fluorescent polymer materials, can solve the problems of poor water solubility, toxic side effects, and low biocompatibility, and achieve rapid response, high stability, and step-by-step simple effect

Active Publication Date: 2021-07-23
DALIAN UNIV OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, their complex synthesis process, poor water solubility, low biocompatibility and toxic side effects further limit their application.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for rapidly preparing polyethyleneimine-tetrakis(hydroxymethyl)phosphonium chloride non-conjugated fluorescent polymer point at room temperature
  • Method for rapidly preparing polyethyleneimine-tetrakis(hydroxymethyl)phosphonium chloride non-conjugated fluorescent polymer point at room temperature
  • Method for rapidly preparing polyethyleneimine-tetrakis(hydroxymethyl)phosphonium chloride non-conjugated fluorescent polymer point at room temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0023] A method for quickly preparing polyethyleneimine-tetrahydroxymethylphosphonium chloride non-conjugated fluorescent polymer dots at room temperature, said method comprising the steps of:

[0024] (1) At room temperature, using water as the reaction solvent, prepare a solution of polyethyleneimine with a concentration of 5 mM.

[0025] (2) Mix the polyethyleneimine solution prepared in step (1) with the tetrakis hydroxymethyl phosphorus chloride solution, and react at 0-80° C. for 90 minutes to obtain a product solution;

[0026] (3) The product solution was dialyzed to prepare non-conjugated fluorescent polymer dots (PEI-T PDs).

[0027] Examples 1-5 are PEI-T PDs prepared at different temperatures from polyethyleneimine and tetrakishydroxymethylphosphonium chloride, as shown in Table 1.

[0028] Polyethyleneimine is a water-soluble polymer containing primary amines, secondary amines and tertiary amines. PEI contains nitrogen atoms, which are easy to form hydrogen bonds...

Embodiment 6～11

[0033] A method for quickly preparing polyethyleneimine-tetrahydroxymethylphosphonium chloride non-conjugated fluorescent polymer dots at room temperature, said method comprising the steps of:

[0034] (1) At room temperature, using water as the reaction solvent, prepare a solution of polyethyleneimine with a concentration of 5 mM.

[0035] (2) Mix the polyethyleneimine solution prepared in step (1) with the tetrakis hydroxymethyl phosphorus chloride solution, and react at 25° C. for 10 to 150 minutes to obtain a product solution;

[0036] (3) The product solution was dialyzed to prepare non-conjugated fluorescent polymer dots (PEI-T PDs).

[0037] Examples 6-11 are PEI-T PDs prepared under different reaction times, see Table 2.

[0038] Table 2 embodiment 6~11 different reaction time

[0039] Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 time (min) 10 30 60 90 120 150

Embodiment 11～13

[0041] A method for quickly preparing polyethyleneimine-tetrahydroxymethylphosphonium chloride non-conjugated fluorescent polymer dots at room temperature, said method comprising the steps of:

[0042] (1) At room temperature, use water as the reaction solvent to prepare a polyethyleneimine solution with a concentration of 2-8 mM.

[0043] (2) Mix the polyethyleneimine solution prepared in step (1) with the tetrakis hydroxymethyl phosphorus chloride solution, and react at 25° C. for 90 minutes to obtain a product solution;

[0044] (3) The product solution was dialyzed to prepare non-conjugated fluorescent polymer dots (PEI-T PDs). Examples 11-13 are PEI-T PDs prepared under different PEI concentrations, see Table 3

[0045] Table 3 Examples 11-13 different PEI concentrations

[0046]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for rapidly preparing a polyethyleneimine-tetrakis(hydroxymethyl)phosphonium chloride non-conjugated fluorescent polymer point at room temperature, and belongs to the technical field of fluorescent polymer materials. The method comprises the steps of at room temperature, firstly, preparing a polyethyleneimine solution; secondly, mixing the polyethyleneimine solution with tetrakis(hydroxymethyl)phosphonium chloride solution, and conducting reacting at 0-100 DEG C for 10-180 minutes to obtain a product solution; and finally, dialyzing the product solution to obtain the non-conjugated fluorescent polymer points (PEI-T PDs). The method does not need an organic solvent, and is green and environment-friendly; the operation is simple, the reaction is rapid, the solution can be changed from colorless to faint yellow after the reaction is carried out for about 10 minutes, and green fluorescence appears under a 365nm ultraviolet lamp; and compared with the prior art, the method has the characteristics of simple steps, environmental protection and rapid reaction.

Description

technical field [0001] The invention belongs to the technical field of fluorescent polymer materials, and relates to a method for rapidly preparing polyethyleneimine-tetrahydroxymethylphosphine chloride non-conjugated fluorescent polymer dots at room temperature. Background technique [0002] Fluorescent conjugated polymer dots usually contain a large number of aromatic compounds or have significantly conjugated conjugated units within a single molecule, making them emissive. However, their complex synthesis process, poor water solubility, low biocompatibility and toxic side effects further limit their application. Non-conjugated fluorescent polymer dots generally do not contain large π-conjugated structures, but contain electron-rich atoms (such as N, O, S, P, etc.) or groups (such as -NH 2 , -C=O, -COOH, etc.) a class of compounds. These substances also have photoluminescent properties under certain conditions. Compared with fluorescent conjugated polymer dots, non-conj...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08G73/04C09K11/06
CPCC08G73/0206C09K11/06C09K2211/14
Inventor 韩冰雁燕琪芳辛泽刘庆东李丹雷翔善
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com