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Method for preparing polyvinylcarbazole/carbon dot composite material based on vinyl carbazole polymerization initiated by carbon dot/amine redox

A polyvinyl carbazole and vinyl carbazole technology, applied in the field of preparation of functional polymer materials, can solve the problems of harsh preparation process and high cost, and achieve rich functional groups, high nitrogen content, high photoelectric conversion efficiency and charge transfer rate Effect

Active Publication Date: 2022-05-10
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vinyl carbazole polymerization carried out by the above method requires a thermal initiator to be carried out under high temperature conditions, or under the assistance of metal ions and light, the cost is high, and the preparation process is relatively harsh.

Method used

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  • Method for preparing polyvinylcarbazole/carbon dot composite material based on vinyl carbazole polymerization initiated by carbon dot/amine redox
  • Method for preparing polyvinylcarbazole/carbon dot composite material based on vinyl carbazole polymerization initiated by carbon dot/amine redox

Examples

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Embodiment 1

[0025] A method for preparing polyvinylcarbazole / carbon dot composite materials based on carbon dot / amine redox initiated vinyl carbazole polymerization, the steps are:

[0026] a. Mix 2 parts by mass of phenanthrene, 80 parts by mass of concentrated sulfuric acid, and 120 parts by mass of concentrated nitric acid, and react in a three-necked bottle equipped with a condensing device at a temperature of 80°C for 48 hours, then cool, filter, and deionized water Wash to obtain nitrophenanthrene;

[0027] b. Mix 0.1 parts by mass of nitrophenanthrene and 30 parts by mass of toluene, ultrasonically treat it for 30 minutes, then add it to a hydrothermal kettle containing a Teflon liner and raise the temperature to 200°C for 12 hours. After cooling, filter and dry , to get carbon dots;

[0028] c. Dissolving 0.02 parts by mass of aniline in 5 parts by mass of tetrahydrofuran to obtain solution A, and dispersing 0.08 parts by mass of carbon dots into 5 parts by mass of tetrahydrofura...

Embodiment 2

[0030] A method for preparing polyvinylcarbazole / carbon dot composite materials based on carbon dot / amine redox initiated vinyl carbazole polymerization, the steps are:

[0031] a. Mix 5 parts by mass of anthracene, 150 parts by mass of concentrated sulfuric acid, and 150 parts by mass of concentrated nitric acid, and react in a three-necked bottle equipped with a condensing device at a temperature of 80°C for 48 hours, then cool, filter, and deionized water Washing to obtain nitroanthracene;

[0032] b. Mix 0.3 parts by mass of nitroanthracene and 30 parts by mass of toluene, ultrasonically treat it for 30 minutes, then add it to a hydrothermal kettle containing a Teflon liner and raise the temperature to 200°C for 12 hours. After cooling, filter and dry get carbon dots;

[0033] c. Dissolving 0.1 parts by mass of m-phenylenediamine in 5 parts by mass of chlorobenzene to obtain solution A, and dispersing 0.1 parts by mass of carbon dots into 5 parts by mass of chlorobenzene ...

Embodiment 3

[0035] A method for preparing polyvinylcarbazole / carbon dot composite materials based on carbon dot / amine redox initiated vinyl carbazole polymerization, the steps are:

[0036]a. Mix 2 parts by mass of pyrene, 40 parts by mass of concentrated sulfuric acid, and 120 parts by mass of concentrated nitric acid, and react for 48 hours at a temperature of 80°C in a three-necked bottle equipped with a condensing device, then cool, filter, and deionize the water Wash to obtain nitropyrene;

[0037] b. Mix 0.4 parts by mass of nitropyrene and 30 parts by mass of toluene, ultrasonically treat it for 30 minutes, then add it to a hydrothermal kettle containing a Teflon liner and heat it up to 200°C for 12 hours. After cooling, filter and dry get carbon dots;

[0038] c. Dissolving 0.05 parts by mass of o-phenylenediamine in 5 parts by mass of toluene to obtain solution A, and dispersing 0.1 parts by mass of carbon dots into 5 parts by mass of toluene to obtain solution B. Dissolve 1 pa...

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Abstract

The invention discloses a method for preparing a polyvinylcarbazole / carbon dot composite material based on polymerization of vinyl carbazole initiated by carbon dot / amine redox, which is characterized by comprising the following steps: mixing polycyclic aromatic hydrocarbon and mixed acid, reacting at 80-120 DEG C for 12-48 hours, cooling, filtering and washing to obtain nitrated polycyclic aromatic hydrocarbon; the method comprises the following steps: mixing nitrated polycyclic aromatic hydrocarbon and an organic solvent, adding the mixture into a reaction kettle, heating to 180-240 DEG C, reacting for 8-24 hours, cooling, filtering, and drying to obtain carbon dots; the preparation method comprises the following steps: dissolving amine in an organic solvent to obtain a solution A; dispersing carbon dots into an organic solvent to obtain a solution B; dissolving vinylcarbazole in an organic solvent, dropwise adding the solution A and the solution B into the organic solvent, and keeping the temperature at 30-80 DEG C for 4-24 hours; and concentrating, washing and drying to obtain the polyvinylcarbazole / carbon dot composite material. The polyvinylcarbazole / carbon dot composite material prepared by the invention is suitable for solar cells and optoelectronic devices.

Description

technical field [0001] The invention belongs to the preparation of functional polymer materials, and relates to a method for preparing polyvinylcarbazole / carbon dot composite materials based on carbon dot / amine redox-triggered vinyl carbazole polymerization. The polyvinylcarbazole / carbon dot composite material prepared by the invention is particularly suitable for solar cells and optoelectronic devices. Background technique [0002] Polyvinyl carbazole is widely used in the photovoltaic field because of its good film-forming properties, processability and photoelectric conductivity. Polyvinyl carbazole films processed with polar solvents are often used as hole transport layers to form solar cells. The film surface of polyvinylcarbazole is smooth, the grain size is small, the crystal quality is good, and there are few defects, which can effectively promote radiation recombination and improve luminous performance. At the same time, the polyvinylcarbazole layer provides a suit...

Claims

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Application Information

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IPC IPC(8): C08F126/12C08F4/40C08F2/44C08K3/04
CPCC08F126/12C08F4/40C08F2/44C08K3/04Y02E10/549
Inventor 任先艳李程浩王超刘才林
Owner SOUTHWEAT UNIV OF SCI & TECH
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