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Intrinsic thermoplastic thiophene derivative copolymer heat-conducting material as well as preparation method and application thereof

A technology of thiophene derivatives and thermally conductive materials, applied in the field of thermally conductive polymer materials, can solve the problems of harsh processing technology, narrow application range, single shape of high thermal conductivity materials, and achieve balanced and stable mechanical properties, mild preparation conditions, and fewer material defects. Effect

Pending Publication Date: 2020-06-12
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the problems of filled thermally conductive polymers widely used in industry are: while inorganic thermally conductive particles improve the thermal conductivity of polymers, they also reduce their inherent high insulation resistance and breakdown strength, and the mechanical strength, toughness and processability decrease.
At present, the preparation of thermoplastic thermally conductive polymers mainly uses unidirectional mechanical stretching, solution and electrospinning to orient the polymer molecular chains to obtain a highly ordered oriented structure. In addition, based on the multi-level structure of the polymer, this The high thermal conductivity material obtained by the method has a single shape, a narrow application range, and a relatively harsh processing technology.

Method used

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  • Intrinsic thermoplastic thiophene derivative copolymer heat-conducting material as well as preparation method and application thereof
  • Intrinsic thermoplastic thiophene derivative copolymer heat-conducting material as well as preparation method and application thereof
  • Intrinsic thermoplastic thiophene derivative copolymer heat-conducting material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Weigh 11.4g of 3-methoxythiophene, 10g of n-pentanol, and 0.12g of sodium bisulfate and add them to a three-necked flask equipped with a magnetic stirrer, a thermometer, and a reflux condenser. React for 3 hours, cool to room temperature, and pour into saturated sodium chloride solution. Then the solution was transferred to a separatory funnel, and the organic layer was separated, and the obtained light yellow liquid was 3-pentoxythiophene.

[0033] Gained 3-pentoxythiophene structural formula is: Its H NMR spectrum is as figure 1 shown.

[0034] (2) Put 0.02mol 3-pentyloxythiophene, 0.08mol 3-hexylthiophene, 0.25mol ferric chloride, and 100ml chloroform in a three-necked flask, and under the protection of nitrogen flow, carry out a copolymerization reaction at a constant temperature of 25°C for 24 hours, then Turn off the nitrogen, pour the solution into 500ml of methanol and let it stand for 30min. After suction filtration, the resulting solid was placed in a...

Embodiment 2

[0040] (1) Take by weighing 16.4g 3-methoxythiophene, 13.95g n-amyl alcohol, 0.173g sodium bisulfate and join in the three-necked flask that magnetic stirrer, thermometer, reflux condenser are housed, under the protection of nitrogen stream 115 °C for 3 hours, cooled to room temperature, and poured into saturated sodium chloride solution. Then the solution was transferred to a separatory funnel, and the organic layer was separated, and the obtained light yellow liquid was 3-pentoxythiophene.

[0041] Gained 3-pentoxythiophene structural formula is: Its H NMR spectrum is as figure 1 shown.

[0042] (2) Put 0.03mol 3-pentyloxythiophene, 0.07mol 3-hexylthiophene, 0.28mol iron sulfate, and 120ml toluene in a three-necked flask, and under the protection of nitrogen flow, carry out a copolymerization reaction at a constant temperature of 30°C for 26 hours, then shut down Nitrogen, the solution was poured into 600ml of methanol and allowed to stand for 30min. After suction filtr...

Embodiment 3

[0047] (1) Weigh 22.8g of 3-methoxythiophene, 20g of n-pentanol, and 0.26g of potassium bisulfate into a three-necked flask equipped with a magnetic stirrer, a thermometer, and a reflux condenser, and place them at 120°C under the protection of a nitrogen stream. React for 4 hours, cool to room temperature, and pour into saturated sodium chloride solution. Then the solution was transferred to a separatory funnel, and the organic layer was separated, and the obtained light yellow liquid was 3-pentoxythiophene.

[0048] Gained 3-pentoxythiophene structural formula is: Its H NMR spectrum is as figure 1 shown.

[0049] (2) Put 0.04mol 3-pentyloxythiophene, 0.06mol 3-hexylthiophene, 0.30mol ferric nitrate, and 130ml chloroform in a three-necked flask, and under the protection of nitrogen flow, carry out a copolymerization reaction at a constant temperature of 35°C for 28 hours, then shut down Nitrogen, the solution was poured into 650ml of methanol and allowed to stand for 30mi...

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Abstract

The invention belongs to the field of heat-conducting polymer materials, and discloses an intrinsic thermoplastic thiophene derivative copolymer heat-conducting material as well as a preparation method and application thereof. The intrinsic thermoplastic thiophene derivative copolymer heat conduction material is obtained by random copolymerization of the following two structural units [I] and [II]according to a certain proportion, the structures of the structural units [I] and [II] are shown in the specification, wherein the m is equal to 0-9 and n is equal to 0-11. According to the invention, 3-alkoxythiophene with relatively strong rigidity and 3-alkylthiophene with relatively good flexibility are copolymerized and introduced into a system, so that the intrinsic thermoplastic thiophenederivative copolymer heat-conducting material of which the heat-conducting property is superior to that of a common thermoplastic polymer is prepared.

Description

technical field [0001] The invention belongs to the field of heat-conducting polymer materials, in particular to an intrinsic thermoplastic thiophene derivative copolymer heat-conducting material and its preparation method and application. Background technique [0002] With the rapid development of high-integration technology, the contradiction between the continuous shrinkage of microelectronic devices and timely heat dissipation has become increasingly prominent. Using thermally conductive polymers as packaging materials is an effective solution to effectively solve the above contradictions. At present, the problem of filled thermally conductive polymers widely used in industry is that while inorganic thermally conductive particles improve the thermal conductivity of polymers, they also reduce their inherent high insulation resistance and breakdown strength, and the mechanical strength, toughness and processability decrease. The intrinsic thermally conductive polymer overc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12
CPCC08G61/126C08G2261/122C08G2261/1424C08G2261/1412C08G2261/3223Y02E10/549
Inventor 吴昆郑浩铤
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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