Novel crystallizable polyether ether ketone resin capable of dissolving side groups containing phthalein and preparation method thereof

A new type of polyetheretherketone ketone resin, applied in the field of polymer materials, can solve the problems of limited application and poor resin solubility, and achieve the effects of diverse radiation resistance, high heat resistance level, and high mechanical strength

Active Publication Date: 2018-12-28
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it is precisely because it has a rigid main chain and can be arranged regularly that the solubility of the corresponding resin is extremely poor. At present, it can only be dissolved in concentrated sulfuric acid.
Therefore, the above-mentioned classic polyarylether materials can only be used to prepare reinforcing fibers by melt extrusion, and the high melt viscosity greatly limits the corresponding applications.

Method used

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  • Novel crystallizable polyether ether ketone resin capable of dissolving side groups containing phthalein and preparation method thereof
  • Novel crystallizable polyether ether ketone resin capable of dissolving side groups containing phthalein and preparation method thereof
  • Novel crystallizable polyether ether ketone resin capable of dissolving side groups containing phthalein and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Under the condition of nitrogen protection, add 0.01 mol of mixed bisphenol with a molar ratio of phenolphthalein to 4,4'-dihydroxybiphenyl of 9:1 in a three-neck flask with a stirrer, nitrogen inlet and condenser, in the structural formula n / ( The ratio of n+m) is 0.9, 0.01mol of dihalogen monomer 1,3-bis(4'-fluorobenzoyl)benzene, and potassium carbonate that is 1 times the total molar weight of mixed bisphenol monomers is used as a catalyst, and an appropriate amount is used Toluene is used as a water-carrying agent, and an appropriate amount of sulfolane is used as a solvent. Keep the temperature at 110°C for 1 hour, then distill off the toluene, and raise the temperature to 175°C for 4.5 hours. After the final post-treatment, a new crystallizable and soluble polyetheretherketone-ketone resin containing phthalein side groups is obtained. The crystallinity of the corresponding resin is 2%, and the number average relative molecular weight is 30,000. The thermal tensi...

Embodiment 2

[0022] According to the same operating procedure as in Example 1, under the condition of nitrogen protection, a mixture of phenolphthalein and 4,4'-dihydroxybiphenyl with a molar ratio of 5:5 was added to a three-necked flask with a stirrer, a nitrogen inlet and a condenser. 0.01 mol of phenol, the ratio of n / (n+m) in the structural formula is 0.5, 0.01 mol of dihalogen monomer 1,3-bis(4'-fluorobenzoyl)benzene, and the total molar weight of mixed bisphenol monomer is 1.2 twice as much potassium carbonate as a catalyst, an appropriate amount of toluene as a water-carrying agent, and an appropriate amount of sulfolane as a solvent. Keep the temperature at 120°C for 2 hours, then distill off the toluene, and raise the temperature to 200°C for 6 hours. After the final post-treatment, a new crystallizable and soluble polyetheretherketone-ketone resin containing phthalein side groups is obtained. The crystallinity of the corresponding resin is 20%, and the number-average relative m...

Embodiment 3

[0024] According to the same operating procedure as in Example 1, under the condition of nitrogen protection, a mixture of phenolphthalein and 4,4'-dihydroxybiphenyl with a molar ratio of 1:9 was added to a three-necked flask with a stirrer, a nitrogen inlet and a condenser. 0.01 mol of phenol, the ratio of n / (n+m) in the structural formula is 0.1, 0.01 mol of dihalogen monomer 1,3-bis(4'-fluorobenzoyl)benzene, and the total molar weight of mixed bisphenol monomer is 1.4 twice as much potassium carbonate as a catalyst, an appropriate amount of toluene as a water-carrying agent, and an appropriate amount of sulfolane as a solvent. Keep the temperature at 130°C for 3 hours, then distill off the toluene, and raise the temperature to 240°C for 10 hours. After the final post-treatment, a new crystallizable and soluble polyetheretherketone-ketone resin containing phthalein side groups is obtained. The crystallinity of the corresponding resin is 40%, and the number-average relative ...

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Abstract

The invention provides a novel crystallizable polyether ether ketone resin capable of dissolving side groups containing phthalein and a preparation method thereof, and belongs to the technical field of polymer materials. Under nitrogen protection conditions, mixed bisphenol and a dihalogen monomer of the equimolar ratio are used as a synthetic monomer, toluene or xylene is used as a water-carryingagent, potassium carbonate and/or sodium carbonate 1-1.4 times the total molar amount of a bisphenol monomer is used as a catalyst, and sulfolane or dimethyl sulfoxide is used as a solvent for the reaction. Synthesis is performed at 240 DEG C for 4.5-10 hours. The crystallinity of the resin is 2-40%, and the number average relative molecular weight is more than 30,000. The thermal tensile deformation rate of the resin at 250 DEG C is 0-400%, and the resin can be dissolved in 1,1',2,2'-tetrachloroethane and/or p-chlorophenol. The polyether ether ketone resin has the advantages of strong crystallization capacity, high molecular mass, good tensile performance, strong molecular orientation capability and excellent solubility.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a novel crystallizable and soluble polyether ether ketone ketone resin containing phthalein side groups and a preparation method. Background technique [0002] Polyether ketone resins containing phthalein side groups have the characteristics of high tensile strength, high heat resistance, good wear resistance, and good solubility. Polyether ketone resins containing phthalein side groups can be used to manufacture various structural parts and products by thermoforming methods such as injection and extrusion, and can be used as structural materials in films, sheets, plates, tubes, fibers, coatings and other forms, and are widely used Used in aerospace, vehicles, ships, electronic appliances, nuclear energy, precision loading and unloading, petrochemical, environmental engineering and other fields. It is also possible to prepare high-temperature-resistant special insulating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40
CPCC08G65/405
Inventor 宾月珍董大林唐萍
Owner DALIAN UNIV OF TECH
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