Synthesis process for special engineering plastic polyetheretherketone

A technology of special engineering plastics and polyether ether ketone, which is applied in the field of organic polymer synthesis, can solve problems such as negative effects, and achieve the effect of avoiding side reactions and improving reaction yield

Inactive Publication Date: 2014-11-19
天津格林泰克环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The old process uses sodium carbonate or potassium carbonate as a catalyst to catalyze the reaction, which actually has a negative impact on the reaction itself

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] A 1-liter three-neck glass flask is equipped with a mechanical stirrer, an oil-water separator, a glass condenser and a thermometer. Add 33.1 grams of hydroquinone, 62 grams of 40% aqueous sodium hydroxide solution, and 150 grams of toluene in the bottle. Heating to the reflux of the solvent and maintaining the reflux state, the water is continuously separated from the oil-water separator. After reacting for three hours, no moisture was produced in the oil-water separator. A white solid appeared in the reaction vial. The reaction was stopped, and the white solid sodium hydroquinone was filtered to remove toluene, and the solid was dried to obtain 47 grams of solid powder.

[0010] Add 300 grams of sulfolane, 67.1 grams of 4,4-difluorobenzophenone, and 47 grams of the above-mentioned solid powder in a four-neck flask equipped with a condenser, a thermometer, and an N2 port. Heating to raise the temperature, the temperature rises to 280°C and maintains it. The reactio...

Embodiment 2

[0012] A 1-liter three-neck glass flask is equipped with a mechanical stirrer, an oil-water separator, a glass condenser and a thermometer. Add 33.1 grams of hydroquinone, 84 grams of 40% potassium hydroxide aqueous solution, and 150 grams of toluene in the bottle. Heating to the reflux of the solvent and maintaining the reflux state, the water is continuously separated from the oil-water separator. After reacting for three hours, no moisture was produced in the oil-water separator. A white solid appeared in the reaction vial. The reaction was stopped, and the white solid potassium hydroquinone was filtered to remove toluene, and the solid was dried to obtain 67 grams of solid powder.

[0013] Add 300 grams of sulfolane, 67.1 grams of 4,4-difluorobenzophenone, and 67 grams of the above-mentioned solid powder in a four-necked flask equipped with a condenser, a thermometer, and an N2 port. Heating to raise the temperature, the temperature rises to 280°C and maintains it. The...

Embodiment 3

[0015] A 1-liter three-neck glass flask is equipped with a mechanical stirrer, an oil-water separator, a glass condenser and a thermometer. Add 33.1 grams of hydroquinone, 44 grams of lithium hydroxide monohydrate, and 150 grams of toluene into the bottle. Heating to the reflux of the solvent and maintaining the reflux state, the water is continuously separated from the oil-water separator. After reacting for three hours, no moisture was produced in the oil-water separator. A white solid appeared in the reaction vial. The reaction was stopped, and the white solid potassium hydroquinone was filtered to remove toluene, and the solid was dried to obtain 38 grams of solid powder.

[0016] Add 300 grams of sulfolane, 67.1 grams of 4,4-difluorobenzophenone, and 47 grams of the above-mentioned solid powder in a four-neck flask equipped with a condenser, a thermometer, and an N2 port. Heating to raise the temperature, the temperature rises to 280°C and maintains it. The reaction s...

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PUM

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Abstract

The invention provides a synthesis process for special engineering plastic polyetheretherketone, and belongs to the technical field of organic synthesis. The process specifically comprises the following steps: reacting hydroquinone with inorganic bases and dehydrating to obtain anhydrous hydroquinone metal salt, and reacting phenolate with 4, 4-difluoro acetophenone in a solvent to obtain a final product, namely the polyetheretherketone.

Description

technical field [0001] The invention relates to the technical field of organic polymer synthesis, in particular to a synthesis process of special engineering plastic polyetheretherketone. Background technique [0002] Polyether ether ketone is a linear polymer material, and its typical structure is a polymer composed of ether bonds, carbonyl groups and benzene rings. Polyetheretherketone has excellent physical and chemical properties. It is widely used in many fields, such as aerospace field, locomotive manufacturing field, electronic and electrical field, medical field and national defense military field. PEEK has good high temperature resistance, outstanding mechanical properties, rigidity and flexibility, especially fatigue resistance under alternating stress, which is comparable to alloy materials. Excellent sliding properties, suitable for occasions that strictly require low friction coefficient and wear resistance, especially the sliding grade PEEK modified with carb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40
Inventor 陈琪
Owner 天津格林泰克环保科技有限公司
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