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Soluble linear conductive polymer and preparation method thereof

A conductive polymer and soluble technology, applied in the field of soluble linear conductive polymers and their preparation, can solve problems such as difficulty in controlling the growth of conjugated segments, and achieve the effects of being conducive to large-scale synthesis, mild reaction and simple operation

Active Publication Date: 2020-05-05
GUANGDONG RES INSTITITUTE OF PETROCHEM & FINE CHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that it is difficult to control the growth of the conjugated segment during the synthesis of existing polymers containing both flexible non-conjugated segments and rigid conjugated segments, and to provide a soluble linear conductive polymer and Its preparation method can effectively regulate the growth of the conjugated segment without introducing an end cap

Method used

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  • Soluble linear conductive polymer and preparation method thereof
  • Soluble linear conductive polymer and preparation method thereof
  • Soluble linear conductive polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a kind of soluble linear conductive polymer, and its preparation method comprises the following steps:

[0035]S1: Use S-dodecyl-S'-(R,R-dimethyl-R"-(2-thienyl) ethyl acetate) trithiocarbonate (DTTC-Th) as chain transfer agent , the reversible addition of methyl acrylate (MA), N,N-dimethylaminoethyl methacrylate (DMAEMA) and 1,4-dioxane initiated by azobisisobutyronitrile (AIBN) - fragmentation chain transfer polymerization to obtain polymethacrylic acid N,N-dimethylaminoethyl ester-b-polymethyl acrylate (PDMAEMA-b-PMA-Th);

[0036] S2: Under the action of a catalyst, add 3,4-ethylenedioxy The n-butanol solution of thiophene (EDOT) is subjected to interfacial polymerization to obtain poly-N,N-dimethylaminoethyl methacrylate-b-polymethyl acrylate-b-poly 3,4-ethylenedioxythiophene (PDMAEMA -b-PMA-b-PEDOT), a soluble linear conductive polymer.

[0037] Specifically, step S1 includes the following steps:

[0038] (1) Synthesis of DTTC-Th

[003...

Embodiment 2

[0054] This embodiment provides a kind of soluble linear conductive polymer, and its preparation method comprises the following steps:

[0055] (1) Synthesis of DTTC-Th

[0056] Add 2.5g of DTTC, 1.1g of 2-thiophenethanol, 2.5g of dicyclohexylcarbodiimide, 0.08g of 4-dimethylaminopyridine and 5mL of tetrahydrofuran into a 25mL flask, dissolve it under stirring at 400r / min, and then quickly shake the flask Refrigerated and degassed three times, and then placed in an oil bath at 30°C for 30 h. After the reaction, the mixed solution was filtered and concentrated, and the product was separated by gel chromatography to obtain DTTC-Th.

[0057] (2) Synthesis of PDMAEMA-Th

[0058] Add 16.7g DMAEMA, 0.4g DTTC-Th, 0.02g AIBN and 10mL 1,4-dioxane into a 25mL flask, dissolve under stirring at 400r / min, freeze and degas the flask 3 times quickly, and then place Reaction in an oil bath at 75°C for 5h. After the reaction, cool at room temperature, add the reaction solution dropwise int...

Embodiment 3

[0064] (1) Synthesis of DTTC-Th

[0065] Add 2.2g of DTTC, 1g of 2-thiophenethanol, 1.5g of dicyclohexylcarbodiimide, 0.07g of 4-dimethylaminopyridine and 5mL of tetrahydrofuran into a 25mL flask, and dissolve it under stirring at 500r / min. Refrigerated and degassed 3 times, and then placed in an oil bath at 35°C for 30 h. After the reaction, the mixed solution was filtered and concentrated, and the product was separated by gel chromatography to obtain DTTC-Th.

[0066] (2) Synthesis of PDMAEMA-Th

[0067]Add 15.7g DMAEMA, 0.36g DTTC-Th, 0.016g AIBN and 10mL 1,4-dioxane into a 25mL flask, dissolve under stirring at 500r / min, freeze and degas the flask 3 times quickly, and then place Reaction in an oil bath at 65°C for 5h. After the reaction, cool at room temperature, add the reaction solution dropwise into 200 mL of petroleum ether for precipitation, obtain the precipitate, and dry it in vacuum at 25° C. for 24 hours to obtain PDMAEMA-Th.

[0068] (3) Synthesis of PDMAEMA-...

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Abstract

The invention provides a soluble linear conductive polymer and a preparation method thereof. The preparation method comprises the following steps: S1, taking S-dodecyl-S'-(R, R'-dimethyl-R''-(2-thienyl) ethyl acetate) trithiocarbonate as a chain transfer agent; carrying out a reversible addition-fragmentation chain transfer polymerization reaction on methyl acrylate, 2-(Dimethylamino)ethyl methacrylate and 1, 4-dioxane under the initiation of azodiisobutyronitrile to obtain polymethylacrylic acid N, N-dimethylaminoethyl ester-b-polymethyl acrylate; and S2, adding a 3, 4-ethylenedioxythiophenen-butyl alcohol solution into the polymethylacrylic acid N, N-dimethylaminoethyl ester-b-polymethyl acrylate hydrochloric acid solution, and carrying out interfacial polymerization reaction under theaction of a catalyst to obtain the soluble linear conductive polymer. The soluble linear conductive polymer is synthesized by adopting reversible addition-fragmentation chain transfer polymerization and interfacial polymerization methods, so that the length of a flexible chain segment of the soluble linear conductive polymer is controllable.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a soluble linear conductive polymer and a preparation method thereof. Background technique [0002] In recent years, a new type of composite polymer material with a well-defined structure, including flexible non-conjugated chain segments and rigid conjugated chain segments, has a much better structure than homopolymer materials with conjugated units due to its differences in structure and phase orientation. More scope of application and attention. First of all, the non-conjugation of the flexible segment can destroy the stacking and aggregation effect between the conjugated segments and between molecules, produce a solubilizing effect, and improve the solution processability and film-forming properties of the polymer. Secondly, under the solubilization effect of the flexible non-conjugated chain segment, a longer rigid conjugated chain segment can be introduced, thereby overcomi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12C08F293/00
CPCC08G61/126C08F293/005C08F2438/03C08G2261/126C08G2261/3243C08G2261/19
Inventor 高树曦麦裕良廖兵胡小勇张磊
Owner GUANGDONG RES INSTITITUTE OF PETROCHEM & FINE CHEM ENG
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