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Sulfonic self-doped aniline copolymer with controllable nanometer structure and synthesis method thereof

A technology of aniline copolymer and nanostructure, which is applied in the preparation of sulfonic acid, organic chemistry, etc., can solve the problems of poor processing performance and achieve the effect of simple synthesis

Inactive Publication Date: 2011-11-23
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of poor processability and conduction only at pH<3 in the prior art, and propose a Self-doped aniline copolymer with controllable nanostructure of sulfonic acid group and its synthesis method

Method used

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  • Sulfonic self-doped aniline copolymer with controllable nanometer structure and synthesis method thereof
  • Sulfonic self-doped aniline copolymer with controllable nanometer structure and synthesis method thereof
  • Sulfonic self-doped aniline copolymer with controllable nanometer structure and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Synthesis of pure aniline nanofibers as an aniline / aniline-2-sulfonic acid (100 / 0) copolymer

[0108] The molar ratio of aniline / aniline-2-sulfonic acid copolymerization is 100 / 0, that is, accurately weigh 470 mg (5 mmol) aniline and dissolve in 25 mL 1.0 mol / L hydrochloric acid to form a comonomer solution;

[0109] According to the initiator N - The molar ratio of phenylphenylenediamine and aniline monomer is 1:50, weigh 23.5 mg (0.1 mmol) N - phenylphenylenediamine was dissolved in 1.0 mL methanol to form an initiator solution;

[0110] According to the molar ratio of oxidant and aniline monomer of 1 / 1, 1152.5 mg (5 mmol) of oxidant ammonium persulfate was weighed and dissolved in 25 mL of 1.0 mol / L hydrochloric acid aqueous solution to form an oxidant solution.

[0111] After mixing the initiator solution and the aniline monomer solution evenly, the oxidant solution was added immediately, shaken vigorously for 15 seconds, and then left to react for 24 h. After th...

Embodiment 2

[0114] Synthesis of Aniline / Aniline-2-sulfonic acid (70 / 30) Copolymer

[0115] The molar ratio of aniline / aniline-2-sulfonic acid copolymerization is 70 / 30, that is, accurately weigh 329 mg (3.5 mmol) of aniline and 273 mg (1.5 mmol) of aniline-2-sulfonic acid in 25 mL of 1.0 mol / L hydrochloric acid , forming a comonomer solution;

[0116] According to the initiator N - Phenylphenylenediamine and comonomer molar ratio is 1 / 50 and weighed 23.5 mg (0.1 mmol) N - phenylphenylenediamine was dissolved in 1.0 mL methanol to form an initiator solution;

[0117] According to the molar ratio of oxidant and comonomer as 1 / 1, 1152.5 mg (5 mmol) of ammonium persulfate was weighed and dissolved in 25 mL of 1.0 mol / L hydrochloric acid aqueous solution to form an oxidant solution.

[0118] After mixing the initiator solution and the comonomer solution evenly, the oxidant solution was added immediately, shaken vigorously for 15 seconds, and then left to react for 24 h. After the reaction ...

Embodiment 3

[0120] Synthesis of Aniline / Aniline-2-sulfonic acid (50 / 50) Copolymer

[0121] The molar ratio of aniline / aniline-2-sulfonic acid copolymerization was 50 / 50, and Example 2 was repeated to finally obtain black aniline / aniline-2-sulfonic acid (50 / 50) copolymer powder particles.

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Abstract

The invention discloses a sulfonic self-doped aniline copolymer with a controllable nanometer structure and a synthesis method thereof. The synthesis method comprises the following steps of: dissolving aniline-2-sulfonic acid and aniline or aniline derivatives into a first acid solution in different molar ratios to form a comonomer solution; dissolving a catalytic amount of initiator into a small amount of ethanol to form an initiator solution; dissolving a certain amount of oxidant into a second acid solution to form an oxidant solution; adding the oxidant solution immediately after blending the initiator solution with the comonomer solution; and vigorously shaking the solution for a while and then standing until the reaction is complete to obtain the self-doped aniline copolymer which has a nanometer structure with the dimension and size both controllable. The synthesis method provided by the invention has the advantages of simple synthesis steps, high efficiency and high controllability. The obtained self-doped conductive polymer with the nanometer structure can be adopted in application fields, such as electrodes, electronic screening, static prevention, corrosion prevention of metal, electrochromic materials, sensors, functional films, prevention of ocean pollution and the like.

Description

technical field [0001] The invention belongs to the technical field of conductive polymer nanomaterial preparation, in particular to a sulfonic acid group self-doped aniline copolymer with controllable nanostructure and a synthesis method thereof. Background technique [0002] Polyaniline (Polyaniline) has become the most widely studied intrinsically conductive polymer due to its advantages of low cost, simple synthesis, high conductivity, high temperature resistance, good environmental stability, and specific acid doping / alkali dedoping effects. one. (MacDiarmid A G. In Conjugated polymers and related materials, The interconnection of chemical and electronic structure [B]. Salaneck W R, Lundstrom I, Ranby, B. eds., Oxford Press, 1993, p73?98.) Secondary batteries, light-emitting diodes, electrochromic materials and sensors have shown great application potential (Bhadraa S, Khastgira D, Singhaa N K, Lee J H. Progress in preparation, processing and applications of polyanil...

Claims

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Application Information

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IPC IPC(8): C08G73/02C07C309/46C07C303/22
Inventor 廖耀祖谭娜王霞
Owner UNIV OF SHANGHAI FOR SCI & TECH
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