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Fluorescent poly arylene ether nitrile multipolymer and preparation method thereof

A polyarylether nitrile and copolymer technology, applied in the field of fluorescent polyarylether nitrile copolymer and its preparation, to achieve the effects of easy control of the production process, easy availability of raw materials, and strong fluorescence

Inactive Publication Date: 2011-05-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These patents are related to the synthesis of polyarylether nitrile resin and the preparation of composite materials, and do not involve the synthesis of fluorescent polyarylether nitrile resin

Method used

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  • Fluorescent poly arylene ether nitrile multipolymer and preparation method thereof
  • Fluorescent poly arylene ether nitrile multipolymer and preparation method thereof
  • Fluorescent poly arylene ether nitrile multipolymer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The molar ratio is 2,6-dichlorobenzonitrile: phenolphthalein: phenolphthalein: potassium carbonate: N-methylpyrrolidone: toluene = 1: 0.75: 0.25: 1.1: 6: 1.3 Ratio by weighing raw materials, the raw materials Put it into a reaction kettle with a water separator, agitator and a heater, start stirring, raise the temperature to 140°C for dehydration reaction for 3 hours, steam the toluene through the water separator, raise the temperature to 200°C, and react until climbing rods appear When the phenomenon occurs, stop the reaction. The reactant was poured into methanol for the first precipitation, and the first precipitate was pulverized, acidified with dilute hydrochloric acid, washed with boiling water, filtered, and dried to obtain a crude product. Then the crude product was dissolved and filtered with dimethylformamide, and the filtrate was precipitated with hot water for the second time, and the precipitate was filtered and dried for the second time to obtain a fluores...

Embodiment 2

[0030] The molar ratio is 2,6-dichlorobenzonitrile: phenolphthalein: phenolphthalein: potassium carbonate: N-methylpyrrolidone: toluene = 1: 0.5: 0.5: 1.2: 7: 1.4 Ratio by weighing raw materials, the raw materials Put it into a reaction kettle with water separator, agitator and heater, start stirring, raise the temperature to 150°C for dehydration reaction for 2.5 hours, steam the toluene through the water separator, raise the temperature to 200°C, and react until climbing rods appear When the phenomenon occurs, stop the reaction. The reactant was poured into water for the first precipitation, and the first precipitate was pulverized, acidified with dilute hydrochloric acid, washed with boiling water, filtered, and dried to obtain a crude product. Then the crude product is dissolved and filtered with dimethylformamide, and its filtrate is precipitated for the second time with methanol. After the second precipitate is filtered and dried, the fluorescent polyarylether nitrile co...

Embodiment 3

[0034] The molar ratio is 2,6-dichlorobenzonitrile: phenolphthalein: phenolphthalein: potassium carbonate: N-methylpyrrolidone: toluene = 1: 0.25: 0.75: 1.1: 8: 1.5 Ratio by weighing raw materials, the raw materials Put it into a reaction kettle with a water separator, agitator and a heater, start stirring, raise the temperature to 160°C for dehydration reaction for 2 hours, steam the toluene through the water separator, raise the temperature to 200°C, and react until climbing rods appear When the phenomenon occurs, stop the reaction. The reactant was poured into water for the first precipitation, and the first precipitate was pulverized, acidified with dilute hydrochloric acid, washed with boiling water, filtered, and dried to obtain a crude product. Then the crude product is dissolved and filtered with dimethylformamide, and its filtrate is precipitated for the second time with methanol. After the second precipitate is filtered and dried, the fluorescent polyarylether nitril...

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Abstract

The invention relates to a fluorescent poly arylene ether nitrile multipolymer and a preparation method thereof, which belong to the technical field of high polymer materials. The preparation method comprises the following steps: using 2, 6- dichlorobenzonitrile, phenolphthalein and phenolphthalein as raw materials and N-pyrrolidone as solvents for carrying out dehydration reaction for 2 to 5 hours at 140 to 160 DEG C under the effect of catalysts and dehydration agents, raising the temperature to 180 to 200 DEG C for reaction after the dehydration agents are evaporated out, stopping the reaction when a pole climbing phenomenon occurs, crushing precipitates obtained through primary precipitation of reagents via precipitating agents, acidifying the precipitates by dilute hydrochloric acid, washing the precipitates by boiling water, filtering and drying the precipitates to obtain crude products, dissolving the crude products by dimethylformamide, filtering the solution, and obtaining the fluorescent poly arylene ether nitrile multipolymers after filtering and drying the precipitates after the secondary precipitation of filter liquid via the precipitating agents. The invention has the advantages that raw materials can be easily obtained, the reaction condition can be easily realized, the production process is easy to control, no secondary reaction and no byproduct are generated in the polymerization process, and the prepared fluorescent poly arylene ether nitrile multipolymer has good fluorescence performance, thermal stability, mechanical property and self fire resistance and belongs to a novel high-heat-resistance fluorescent polymer.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a fluorescent polyarylether nitrile copolymer and a preparation method thereof Background technique [0002] In recent years, special engineering plastics have been widely used in aerospace, electronic appliances, machinery manufacturing and other fields due to their excellent physical and chemical properties. Typical representative varieties are polyetheretherketone, polyethersulfone, polyetherimide, polyarylethernitrile, etc. Although these varieties have good heat resistance and mechanical properties compared with ordinary engineering plastics, their glass transition temperature is still low, which is not conducive to high temperature use, especially the general lack of synthetic development of functional varieties. [0003] At present, fluorescent composite materials are widely used in display products. Traditional fluorescent composite materials are usually prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40C08G65/46C09K11/06
Inventor 刘孝波钟家春杨建唐海龙詹迎清赵睿
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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