Aromatic polyethersulphone ketones

FIELD: chemistry.

SUBSTANCE: claimed invention relates to aromatic polyethersulphone ketones. Described are aromatic polyethersulphone ketones of gotmula: , where n = 1-20; z = 2-100; R =,.

EFFECT: obtaining aromatic polyethersulphone ketones with high indices of fire-, heat-, and thermal resistance and mechanical characteristics.

1 tbl, 6 ex

 

The invention relates to macromolecular compounds, namely aromatic polyethersulphone structural and film destination.

There are various aromatic polyethersulfones.

1. Osano Keiichi, Sudipto Das, Turner Richard S. Synthesis and properties of polyetherketoneketone containing cyclohexyl. Synthesis and characterization of cyclohexyl-containing poly (ether ketone sulfone)s. Polymer. 2009. 50, N5, c.1144-1149.

2. Huang Zhen-Zhong, Yu La-Mei, Sheng Shou-Ri, Ge Wei-Wei, Liu Xiao-Ling, Song Cai-Sheng. Synthesis and properties of soluble polyetherketoneketone containing simple ether linkages and having a side group containing a few chlorine atoms. Synthesis and characterization of novel soluble poly(ether ketone sulfone)s with pendant polychloro groups. J. Appl. Polym. Sci 2008... 108, N 2, p.1049-1054.

3. Sheng Shou-Ri, Luo Qiu-Yan, Yi-Huo, Luo Zhuo, Liu Xiao-Ling, Song Cai-Sheng. Synthesis and properties of soluble in organic solvents of aromatic polyetherketones containing a lateral methyl group and sulfonic connection. Synthesis and properties of novel organosoluble aromatic poly(ether ketone)s containing pendant methyl groups and sulfone linkages. J. Appl. Polym. Sci 2008... 107, N 1, c.683-687.

4. Karaev A. M., Bajawa R. C., Khasbulatov 3.C., Believe M. B., Stepanova O. L., Stepanov M. I. Synthesis and properties of heat-resistant aromatic block sobolifera. Izvestiya Vuzov. The North Caucasus region. Science, 2007. No. 3. P. 50-53.

The main disadvantage of these polyesters is their low mechanical properties. The structure and properties�am closer to the proposed invention are polyesters on the basis of phenolphthalein oligourethanes and dichlorohydrin terephthaloyl-di(n-oksibenzoynoy) acid. [RF patent №2436762. Aromatic apoliticality and the method of their preparation. Publ. 20.12.11 G.] However, the latter are characterized by low mechanical and thermal characteristics, as well as low values of oxygen index.

The task of the invention is to provide polyesters with improved characteristics heat, heat, heat resistance, and strength properties.

The problem is solved by obtaining aromatic polyethersulfones following formula:

where n=1-20; z=2-100;

R=

the interaction of oligourethanes formula:

with degrees of condensation n=1-20 [Patent No. 2394822. Publ. 20.07.2010] with 4,4'-difercification or 4,4'-dichlorodiphenylmethane in dimethyl sulfoxide. The proposed polyesters are characterized by an increased rate of fire, heat, thermal stability and mechanical properties.

Synthesis of aromatic polyethersulfones be held in the following examples.

Example 1. In a three-neck conical flask equipped with a mechanical stirrer, and a trap Dean-stark, reflux, barbaram for supplying an inert gas load 13,4743 g (0.01 mol) of oligourethane with n=1 (molecular weight = 1347,43), 50 ml of dimethyl sulfoxide, 50 ml of toluene and 2.04 ml of 9.8 n �of astora NaOH. The temperature of the reaction mass was raised to 140°C and the synthesis is carried out under a current of inert gas (nitrogen or argon) to remove traces of water. After distilling off the azeotropic mixture of toluene : water the reaction mixture is cooled to 70-80°C, add 2,18203 (0.01 mol) 4,4'-differenzieren (molecular weight = 218,203). The reaction is conducted at a temperature of 170-180°C for 6 hours. The reaction mass is diluted with 150 ml of DMSO and precipitated into distilled water. The precipitate was filtered off and washed with distilled water until complete removal of chlorine ions and dried to constant weight. The yield is 95%. Z=30-50.

Example 2. The synthesis is carried out according to example 1, and the oligomer is taken oligocarbonate with n=10 with a molecular weight of 10609,36. The yield is 94%, z=4-7.

Example 3. The synthesis is carried out according to example 1, and the oligomer is taken oligocarbonate with n=20 with a molecular weight of 20900,39. The yield is 96%, z=2-4.

Example 4-6. The synthesis is carried out according to examples 1-3, and as dihalogenide undertake appropriate amount of 4,4'-dichlorodiphenylmethane (molecular weight = 285,8636). Outputs - 95-96%; z=30-50, 4-7, 2-4 respectively.

Below are given some properties of aromatic polyethersulphone.

Properties polyethersulfone

Polymers for example:T�. , °CTGA, °C (2% mass loss)KI %σR., MPA%
118937731,079,430,0
219439631,082,630,4
3195400Of 31.582,929,0
419338830,078,729,1
5197401Of 30.579,827,7
619840631,081,628,0

The structure of aromatic polyethersulfones confirmed� IR spectroscopy. In the IR spectra are absorption bands corresponding to simple ether linkages, and there are no bands for hydroxyl groups. The results of turbidimetric titration also confirm the proposed structure.

The technical result of the invention consists in the production of aromatic polyesters with high heat, heat, heat resistance and mechanical characteristics.

Aromatic polyethersulfones formula:

where n=1-20; z=2-100;
R=



 

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FIELD: chemistry.

SUBSTANCE: claimed invention relates to aromatic polyethersulphone ketones of construction and film purpose. Described are aromatic polyethersulphone ketones of formula , where n=1-20; z=2-100;

.

EFFECT: aromatic polyethersulphone ketones with high indices of fire-, heat-, and thermal resistance.

1 tbl, 12 ex

Aromatic polyethers // 2549181

FIELD: chemistry.

SUBSTANCE: claimed invention relates to highly molecular compounds, namely to aromatic polyethers of a constructional and film purpose. Aromatic polyethers of formula: where R= n=2-20; z=2-50, are described.

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FIELD: chemistry.

SUBSTANCE: aromatic polyethersulfone ketones of formula , where n=1-20; z=2-100; ; ; ; , are described.

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FIELD: chemistry.

SUBSTANCE: group of inventions relates to cyanate ester-based polymer compositions which are modified with polysulphones, reinforced with fibrous filler and are used for producing structural polymer composite materials with operating temperature of up to 200°C and articles from said materials, which can be used in aviation, aerospace, motorcar, ship-building and other industries. Disclosed is a cyanate ester-based polymer composition for polymer composite materials, which comprises a thermoplastic modifier and a curing agent, wherein the modifier used is a thermoplastic selected from polysulphone, polyestersulphone, polyarylsulphone or mixtures thereof, and the curing agent used is an amine catalyst. The invention also discloses a prepreg which includes said polymer composition and fibrous filler, and an article made from said prepreg by moulding.

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FIELD: chemistry.

SUBSTANCE: present invention relates to high-molecular weight compounds, particularly block copolyesters. Described are block copolyesters of formula where n=1-20; m=2-50; z=2-30.

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FIELD: chemistry.

SUBSTANCE: claimed invention relates to block-copolyether formals. Described are the block-copolyether formals of formula

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EFFECT: obtaining the block-copolyether formals possessing high heat and thermal stability, as well as high mechanical characteristics.

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Block copolyesters // 2505559

FIELD: chemistry.

SUBSTANCE: described are block copolyesters of formula , where n=1-20; m=2-50; z=2-30.

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SUBSTANCE: invention refers to high-molecular compounds, namely to aromatic polyester sulphone ketones of formula

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FIELD: chemistry.

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FIELD: chemistry.

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EFFECT: reduction of quantity of formed dioxane relative to quantity of used diethyleneglycol, in the process of obtaining polyester polyols.

9 cl, 5 tbl, 18 ex

FIELD: chemistry.

SUBSTANCE: claimed invention relates to aromatic block-copolyethers. Described are the aromatic block-copolyethers of formula: , where n=1-20; m=2-50; z=2-30.

EFFECT: obtaining the block-copolymers, possessing high heat and thermal resistance, as well as high mechanical characteristics.

1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: described are aromatic block-copolyethers of formula where n=1-20; m=2-50; z=2-30.

EFFECT: obtaining block-copolyethers, which possess high heat- and thermal resistance, high mechanical characteristics.

1 tbl

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