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Silicon-containing aryne polymer and preparation method thereof

A technology of polymer and silicon aryne, which is applied in the field of silicon-containing aryne polymer and its preparation, can solve the problems of cumbersome polymer process and increased cost, and achieve the effects of good solubility, mild reaction conditions and high chemical purity

Inactive Publication Date: 2019-02-26
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since this method requires metal catalysts for catalysis, and the process of obtaining polymers from intermediates is cumbersome, the cost of application is increased.

Method used

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  • Silicon-containing aryne polymer and preparation method thereof
  • Silicon-containing aryne polymer and preparation method thereof
  • Silicon-containing aryne polymer and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The preparation method of the silicon-containing aryne polymer of the present embodiment, the specific reaction formula is as follows:

[0063]

[0064] The silane monomer is Alkyne monomers are

[0065] The preparation method of above-mentioned silicon-containing aryne polymer, comprises the steps:

[0066] (1) Add 440mg (5mmol) of silane monomer, 630mg (5mmol) of acetylenic monomer, 20mg (0.5mmol) of sodium hydroxide, and 5mL of ethylene glycol dimethyl ether into the polymerization tube. After reacting at ℃ for 12h, the reaction was stopped, cooled to room temperature, and an intermediate product was obtained;

[0067] (2) Add the intermediate product dropwise to n-hexane while stirring, a large amount of solids are precipitated, after stirring for 15 minutes, suction filtration, the obtained solids are placed in a vacuum oven and dried for 6 hours to obtain the silicon-containing aryne polymer P1, produced The rate is 67.9%.

[0068] The silicon-containing...

Embodiment 2

[0071] The preparation method of the silicon-containing aryne polymer of the present embodiment, the specific reaction formula is as follows:

[0072]

[0073] The silane monomer is Alkyne monomers are

[0074] The preparation method of above-mentioned silicon-containing aryne polymer, comprises the steps:

[0075] (1) Add 920mg (5mmol) of silane monomer, 630mg (5mmol) of acetylenic monomer, 20mg (0.5mmol) of sodium hydroxide, and 5mL of ethylene glycol dimethyl ether into the polymerization tube. After reacting at ℃ for 12h, the reaction was stopped, cooled to room temperature, and an intermediate product was obtained;

[0076] (2) Add the intermediate product dropwise to n-hexane while stirring, and a large amount of solids are precipitated. After stirring for 15 minutes, suction filtration is performed, and the obtained solids are dried in a vacuum oven for 6 hours to obtain the silicon-containing aryne polymer P2. The rate is 73.2%.

[0077] The silicon-containin...

Embodiment 3

[0080] The preparation method of the silicon-containing aryne polymer of the present embodiment, the specific reaction formula is as follows:

[0081]

[0082] The silane monomer is Alkyne monomers are

[0083] The preparation method of above-mentioned silicon-containing aryne polymer, comprises the steps:

[0084] (1) Add 970mg (5mmol) of silane monomer, 630mg (5mmol) of acetylenic monomer, 20mg (0.5mmol) of sodium hydroxide, and 5mL of ethylene glycol dimethyl ether into the polymerization tube. After reacting at ℃ for 12h, the reaction was stopped, cooled to room temperature, and an intermediate product was obtained;

[0085] (2) Add the intermediate product dropwise to n-hexane while stirring, and a large amount of solids precipitate out. After stirring for 15 minutes, filter with suction, and place the obtained solids in a vacuum oven to dry for 6 hours to obtain the silicon-containing aryne polymer P3. The rate is 52.5%.

[0086] The silicon-containing aryne po...

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Abstract

The invention relates to the technical field of high molecular materials, in particular to a silicon-containing aryne polymer and a preparation method thereof. The silicon-containing aryne polymer isgood in thermal stability and solubleness and can be solved in organic solvents such as tetrahydrofuran and dimethyl sulfoxide. The preparation method of the silicon-containing aryne polymer comprisesthe following steps: mixing a silane monomer, an alkyne monomer, strong base and a solvent and carrying out a heating reaction to obtain an intermediate; and adding the intermediate into a precipitator to obtain a precipitate, and filtering and collecting the precipitate to obtain the silicon-containing aryne polymer. According to the preparation method of the silicon-containing aryne polymer, the polymer is directly prepared by means of a one-pot method without a metal catalyst, so that the green chemical demand is met. The obtained polymer is high in chemical purity. The preparation methodis mild in reaction condition, free of strict anhydrous and anaerobic conditions and simple, and can be carried out in an air atmosphere.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a silicon-containing aryne polymer and a preparation method thereof. Background technique [0002] Silicon-containing polymers generally have high temperature resistance and excellent mechanical properties. Silicon-containing aryne polymer is a new type of aryne polymer that introduces inorganic silicon elements into the main chain structure of organic aryne polymer to form an organic-inorganic hybrid. Compared with traditional polyarylene materials, silicon-containing arylene polymer materials avoid the problems of high heat release and explosive polymerization during the curing process of traditional polyarylene materials, and maintain the excellent resistance of silicon-containing arylene polymer materials. Thermal, but also has high-temperature ceramic performance, is expected to be used as a high-temperature-resistant polymer matrix in the aerospace field [Journal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/60
CPCC08G77/60
Inventor 石建兵付伟强董宇平佟斌蔡政旭支俊格
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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