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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: 2013-08-28
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 polyarylethersulfone containing methoxybenzene side groups (1)

[0039] Mix 10.0812g (0.05mol) 2-(3`-methoxyphenyl)-1,4-hydroquinone monomer, 12.7125g (0.05mol) 4,4`-difluorodiphenyl sulfone with 7.6005g Put anhydrous potassium carbonate, 75ml sulfolane, and 25mL dehydrating agent (toluene or xylene) into a three-necked flask equipped with a nitrogen through hole, mechanical stirring and a water dispenser, ventilate nitrogen, start stirring, and heat up to the reflux of the azeotropic dehydrating agent. React for 1-3 hours, remove the azeotropic dehydrating agent, raise the temperature to 140-180°C and continue the reaction for 7-10 hours; then precipitate the obtained polymer solution in deionized water, grind, wash, and dry to obtain Polyaryl ether sulfone polymer with methoxyphenyl pendant groups.

[0040] The molecular formula is as follows:

[0041]

[0042] image 3 Given the proton magnetic spectrum of the polyarylethersulfone cont...

Embodiment 2

[0045] Example 2: Preparation of polyarylethersulfone containing hydroxybenzene side groups (1)

[0046] First add 322ml of pyridine into a three-necked flask with a thermometer, nitrogen through hole, mechanical stirring, and 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, drop Remove the constant pressure dropping funnel after the completion, install the distillation head, vacuum tailpiece, single-necked flask, rubber tube, pass nitrogen and turn on the heating, slowly evaporate the water, stop heating when the temperature rises to 200-215 ° C, and drop to After room temperature, remove the distillation head, vacuum tailpiece, and single-necked flask, add 5g of polyarylethersulfone polymer containing m-methoxybenzene side groups into the three-necked flask, install a spherical condenser, turn on the heating, and raise the temperature to 160~ ...

Embodiment 3

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

[0053] Put 2.0823g of polyaryl ether sulfone containing m-hydroxyl into a three-neck flask with thermometer, nitrogen hole, mechanical stirring, and water dispenser, then add 0.4491g of anhydrous potassium carbonate, 10ml of N,N-dimethylacetamide, 5ml Toluene, blow nitrogen, start stirring, heat up to the reflux of azeotropic dehydrating agent, react for 1-3 hours, remove the azeotropic dehydrating agent, cool down to 30-50°C, add 2.2ml allyl bromide, install a spherical condenser, Raise the temperature to 100-120°C and continue the reaction for 6-10 hours; then, precipitate the obtained polymer solution in deionized water, pulverize, wash, and dry 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 polyarylethersulfone containing phenoxyallyl side groups...

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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 macromolecular materials, and in particular relates to polyarylethersulfone polymer materials containing aliphatic chain borate ester phenyl side chains and a preparation method thereof. Background technique [0002] Aromatic backbone polyarylethersulfone is widely used in machinery, electronics, automobiles, medical equipment, food industry, aerospace and other fields due to its excellent mechanical properties, good dimensional stability, excellent electrical properties and easy molding process. However, amorphous polyarylethersulfone is sensitive to solvents and hardly resistant to strong polar solvents, concentrated sulfuric acid, and concentrated nitric acid, which limit its application. It is an extremely important work to introduce functional groups into the main chain of aromatic polymers to obtain polyarylethersulfone resistant to strong polar solvents and corrosion. Therefore, the research on th...

Claims

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Application Information

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Patent Type & Authority Applications(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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