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Polyether sulphone material containing phenoxy aliphatic chain boric acid ester side chain and preparation method of material

A technology containing phenoxy fats and phenoxy fats, applied in the field of polyarylethersulfone polymer materials containing aliphatic chain borate phenyl side chains and its preparation, can solve solvent sensitivity, limited application, intolerance, etc. problems, achieve good thermal stability, simple and easy preparation method, and high reaction efficiency

Inactive Publication Date: 2015-07-08
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, amorphous polyarylethersulfone is sensitive to solvents, and is hardly resistant to strong polar solvents, concentrated sulfuric acid, and concentrated nitric acid, which limits its application.

Method used

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  • Polyether sulphone material containing phenoxy aliphatic chain boric acid ester side chain and preparation method of material
  • Polyether sulphone material containing phenoxy aliphatic chain boric acid ester side chain and preparation method of material
  • Polyether sulphone material containing phenoxy aliphatic chain boric acid ester side chain and preparation method of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Preparation of polyaryl ether sulfone containing pendant methoxybenzene groups (1)

[0039] 10.0812g (0.05mol) 2-(3`-methoxyphenyl)-1,4-hydroquinone monomer, 12.7125g (0.05mol) 4,4`-difluorodiphenyl sulfone and 7.6005g Put anhydrous potassium carbonate, 75ml sulfolane, 25ml dehydrating agent (toluene or xylene) into a three-necked flask equipped with nitrogen through-holes, mechanical stirring and a water container, pour nitrogen through, start stirring, and heat to the reflux of the azeotropic dehydrating agent. React for 1 to 3 hours, remove the azeotropic dehydrating agent, and increase the temperature to 140-180°C to continue the reaction for 7-10 hours; then, the obtained polymer solution is precipitated in deionized water, crushed, washed, and dried to obtain an intermediate Pendant methoxybenzene polyaryl ether sulfone polymer.

[0040] The molecular formula is as follows:

[0041]

[0042] image 3 The hydrogen nuclear magnetic spectrum of the polyaryl eth...

Embodiment 2

[0045] Example 2: Preparation of polyaryl ether sulfone containing pendant hydroxyl benzene groups (1)

[0046] First add 322ml of pyridine to a three-necked flask with a thermometer, nitrogen through holes, mechanical stirring, and a constant pressure dropping funnel. Add 336ml of concentrated hydrochloric acid to the dropping funnel. Add the concentrated hydrochloric acid dropwise to the pyridine while stirring. After that, remove the constant pressure dropping funnel, install the distillation head, vacuum tail tube, single-neck flask, rubber tube, blow nitrogen and turn on the heating, slowly distill the water out, and stop heating when the temperature reaches 200~215°C. After room temperature, remove the distillation head, vacuum end adapter, and single-necked flask, add 5g of polyaryl ether sulfone polymer containing m-methoxyphenyl pendant groups into the three-necked flask, install the spherical condenser, turn on the heating, and increase the temperature to 160~ Reacting ...

Embodiment 3

[0052] Example 3: Preparation of polyaryl ether sulfone containing pendant allyloxybenzene groups (1)

[0053] Put 2.0823g of meta-hydroxy-containing polyaryl ether sulfone into a three-necked flask with thermometer, nitrogen through hole, mechanical stirring, and water container, then add 0.4491g anhydrous potassium carbonate, 10ml N,N-dimethylacetamide, 5ml Toluene, nitrogen gas, start stirring, heat up to the reflux of the azeotropic dehydrating agent, react for 1 to 3 hours, remove the azeotropic dehydrating agent, reduce the temperature to 30-50°C, add 2.2ml allyl bromide, install a spherical condenser, The temperature is raised to 100-120°C and the reaction is continued for 6-10 hours; then, the obtained polymer solution is precipitated in deionized water, crushed, washed, and dried to obtain polyaryl ether sulfone containing m-phenoxy allyl side groups polymer.

[0054] The molecular formula is as follows:

[0055]

[0056] figure 1 The DSC curve of the polyaryl ether sulfon...

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Abstract

The invention relates to a polyether sulphone material containing a phenoxy aliphatic chain boric acid ester side chain and a preparation method of the material, belonging to the technical filed of high polymer materials. The polyether sulphone material containing the phenoxy aliphatic chain boric acid ester side chain is a polymer containing a polyether sulphone main chain and a phenoxy aliphatic chain boric acid pinacol ester side chain, polyether sulphone containing a phenoxy allyl side chain is obtained through a reaction between polyether sulphone containing a phenol lateral group and allyl bromide, and under the catalysis of [Ir(COD)Cl]2 and dppe (dipalmitoylphosphatidylcholine), the polyether sulphone containing the phenoxy allyl side chain and pinacol ester borane react so as to prepare the polyether sulphone material containing the phenoxy aliphatic chain boric acid ester side chain. The preparation method is simple to operate, high in reaction efficiency and suitable for polyarylether systems; the prepared polymer has the properties of an aroma main chain and an aliphatic series boric acid ester side chain and heat stability; and a boracic material is an important neutron absorbing material and a reaction intermediate, and has potential application in an atomic energy industry shielding material and preparation of crosslinking polyether sulphone resin.

Description

Technical field [0001] The invention belongs to the technical field of polymer materials, and specifically relates to a polyaryl ether sulfone polymer material containing aliphatic chain borate phenyl side chain and a preparation method thereof. Background technique [0002] Aromatic main chain polyaryl ether sulfone is widely used in machinery, electronics, automobiles, medical equipment, food industry, aerospace and other fields due to its good mechanical properties, good dimensional stability, excellent electrical properties and easy forming and processing. However, amorphous polyaryl ether sulfone is more sensitive to solvents and hardly resistant to strong polar solvents, concentrated sulfuric acid and concentrated nitric acid, which limits its application. Introducing functional groups into the main chain of aromatic polymers to obtain polyaryl ether sulfone resistant to strong polar solvents and corrosion is an extremely important task. Therefore, the research on the modi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/48C08G65/40C07F5/04
Inventor 姜振华王永鹏张海博闫鹏涛刘韬崔曾多路遥平
Owner JILIN UNIV
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