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Schiff base-type conjugated polymer thermoelectric material, and preparation method thereof

A technology of conjugated polymers and thermoelectric materials, applied in the case of chemical agents, glyoxal and p-aryldiamine can solve the condensation reaction of aldehydes and amines through the field of hydroxyl, there are few reports, the type of polymer is single, and the power factor Low-level problems, to achieve the effect of novel structure, low cost and rapid response

Inactive Publication Date: 2016-04-13
INST OF CHEM CHINESE ACAD OF SCI
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Problems solved by technology

Despite this, however, conductive polymers still have the following problems as thermoelectric materials: (1) Due to the difficulty of synthesis, the types of polymers are still relatively single; (2) The power factor is low
[0005] Although the preparation of Schiff bases by simple aldo-amine condensation reactions is an important reaction in the field of organic synthesis, the application of aldo-amine condensation reactions in the preparation of organic thermoelectric materials has rarely been reported.

Method used

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  • Schiff base-type conjugated polymer thermoelectric material, and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] (1) Add p-phenylenediamine (1.08g, 10mmol) into 50~60mL alcohol solvent, stir at room temperature until the solid dissolves;

[0025] (2) Add an aqueous solution of glyoxal (1.45 g, 10 mmol) with a mass percent concentration of 40% to the solution in step (1), and continue stirring at room temperature;

[0026] (3) Add the catalyst formic acid (0.0038mL) dropwise to the mixture in step (2);

[0027] (4) Stir the reaction mixture obtained in step (3) at room temperature for 24 hours;

[0028](5) The reaction mixture obtained in step (4) is filtered under reduced pressure to obtain an orange-red solid filter cake; the orange-red solid is washed and dried to obtain the aldehyde-amine condensation product Schiff base-type conjugated polymer thermoelectric material . The conductivity is 1.2x10 -6 Scm -1 , Seebeck coefficient is 14.0μV / K.

Embodiment 2

[0030] According to the method and steps described in Example 1, the reaction mixture obtained in step (3) in step (4) was stirred at room temperature for 12 h. Finally, the conductivity of the aldehyde-amine condensation product Schiff base type conjugated polymer thermoelectric material powder is 1.8x10 -7 Scm -1 , Seebeck coefficient is 15.3μV / K.

Embodiment 3

[0032] According to the method and steps described in Example 1, the reaction mixture obtained in step (3) in step (4) was stirred at room temperature for 48 h. Finally, the conductivity of the aldehyde-amine condensation product Schiff base type conjugated polymer thermoelectric material powder is 1.3×10 -6 Scm -1 , Seebeck coefficient is 13.8μV / K.

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Abstract

The invention relates to a Schiff base-type conjugated polymer thermoelectric material, and a preparation method thereof, and more specifically relates to an aldehydeamine conjugated polymer thermoelectric material, and a preparation method thereof. The aldehydeamine conjugated polymer thermoelectric material is prepared via aldehyde amine condensation of glyoxal and p-aromatic diamine by taking a Schiff base conjugated polymer obtained via aldehyde amine condensation as a thermoelectric material, and taking an acid as a catalyst. High efficiency synthesis of the Schiff base-type conjugated polymer thermoelectric material is realized by taking glyoxal monomer aqueous solution and p-aromatic diamine, which are cheap and easily available, and possess symmetrical structures, as raw materials, the acid as a catalyst, an alcohol as a solvent, via condensation polymerization of glyoxal and p-aromatic diamine at room temperature. The structure of the Schiff base-type conjugated polymer thermoelectric material is novel; synthesis is convenient; operation of the preparation method is convenient; the preparation method is green and friendly to the environment; reaction temperature is low; and post-treatment is simple.

Description

technical field [0001] The invention relates to a Schiff base type conjugated polymer thermoelectric material and a method for preparing the Schiff base type conjugated polymer thermoelectric material by condensation of glyoxal and p-aryldiamine, in particular to a Schiff base type conjugated polymer thermoelectric material. The conjugated polymer is a thermoelectric material. In the case of acid as a catalyst, glyoxal and p-aryldiamine are prepared by aldol condensation reaction to prepare a conjugated polymer thermoelectric material. Background technique [0002] With the increasing world energy shortage, greenhouse effect and environmental pollution, seeking new green energy to replace traditional fossil energy has become a worldwide problem that all mankind needs to face. Thermoelectric materials, as a functional material that can directly convert heat energy and electric energy, can convert many unavoidable but discarded heat energy in production and life, such as: geot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G12/08
Inventor 陈光明高彩艳王俊梅
Owner INST OF CHEM CHINESE ACAD OF SCI
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