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Full-methylated cyclodextrinaniline nano supermolecule conducting polymer and its preparation method and use

A technology of conductive polymer and cyclodextrin is applied in the field of permethylated cyclodextrin aniline nano-supramolecular conductive polymer and its preparation, which can solve harsh problems and achieve the advantages of simple and easy synthesis method and broad application prospect. Effect

Inactive Publication Date: 2010-09-15
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the solvent, temperature, and pH conditions of this type of synthesis are still somewhat harsher than polyaniline itself, and the supramolecular complexes of polyaniline and cyclodextrin cannot be directly obtained by polymerization under relatively mild conditions.

Method used

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  • Full-methylated cyclodextrinaniline nano supermolecule conducting polymer and its preparation method and use
  • Full-methylated cyclodextrinaniline nano supermolecule conducting polymer and its preparation method and use
  • Full-methylated cyclodextrinaniline nano supermolecule conducting polymer and its preparation method and use

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preparation example Construction

[0034] The preparation method of the present invention is specifically described as follows:

[0035] First, the preparation of permethylated β-cyclodextrin aniline inclusion complex is as follows:

[0036]

[0037] Add aniline into the aqueous solution of permethylated β-cyclodextrin, stir the mixed system at room temperature for 5 hours, evaporate the solvent to dryness, and obtain the light yellow powder of permethylated β-cyclodextrin aniline inclusion compound .

[0038] Then prepare permethylated cyclodextrin aniline nano-supramolecular conductive polymer as follows:

[0039]

[0040] In the preparation method of the present invention, the solvent water used in the preparation process is distilled water. The aniline is reagent pure, and the fully methylated β-cyclodextrin is synthesized by known techniques. The acidic aqueous solution is one of hydrochloric acid, perchloric acid or sulfuric acid aqueous solution. When the acidic aqueous solution is a hydrochloric...

Embodiment 1

[0043] Preparation method of fully methylated cyclodextrin aniline inclusion compound

[0044] Dissolve 93 mg of aniline in 30 mL of water, add this aqueous solution to 1.43 g of an aqueous solution (50 mL) of permethylated β-cyclodextrin, stir the mixed system at room temperature for 5 hours, and evaporate the solvent to dryness to obtain permethylated β-cyclodextrin Yellowish powder of β-cyclodextrin aniline inclusion complex.

Embodiment 2

[0046] Preparation method of fully methylated cyclodextrin aniline nano-supramolecular conductive polymer

[0047] Dissolve 1.5g of permethylated β-cyclodextrin aniline clathrate completely in 30mL of 1M hydrochloric acid at room temperature, and add 2mL of ammonium persulfate (0.5mol / L) solution. (during the experiment, the substance ratio of clathrate and ammonium persulfate can be within 1.0-1.5) the solution gradually changes from light yellow to light blue, and after 2 hours, dark green precipitates gradually appear, and the color of the solution deepens, gradually turned dark green. After 15 hours, the reaction was complete. The dark green precipitate precipitated in the system was collected, washed several times with distilled water, and dried in vacuum to obtain a dark green powdery solid (yield: 80%, calculated as aniline monomer).

[0048] The compound can change color in acidic and alkaline environments, and this process is reversible.

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Abstract

The invention relates to a complete methylate cyclodextrin anilin nano supermolecule conducting polymer and the preparation method and application thereof. The invention is obtained from polymerization of complete methylate beta- cyclodextrin anilin clathrate in acid solution. The synthesis process of the invention is totally finished in aqueous phase and the whole process is easy and simple. Theresults of AFM and TEM experiment prove that the complete methylate cyclodextrin anilin nano supermolecule conducting polymer and the polyaniline both produced under the same condition are significantly different in aggregating form. Furthermore, compared with the polyaniline synthesized by the prior art, the water solubility of the invention is apparently improved, although condustance ratio is reduced, the trend of condustance ratio changing with temperature is different from polyaniline because the condustance ratio of the invention changes relatively small in a wider temperature range. The invention has a wide application prospect in the technological field of nano supermolecule materials.

Description

【Technical field】 [0001] The invention belongs to the technical field of nano supramolecular materials, and relates to a fully methylated cyclodextrin aniline nano supramolecular conductive polymer and a preparation method thereof. The invention prepares the water-soluble fully methylated cyclodextrin aniline nano supramolecular conductive polymer through the inclusion complex of methylated β-cyclodextrin and aniline in the water phase. The compound can be used as a nanoscale molecular wire with an insulating layer, and has broad application prospects in the technical field of nanometer materials. 【Background technique】 [0002] Wire is a product that can be seen everywhere in people's daily life. The conductive copper wire is wrapped with an insulating shell to become the insulated wire we use every day. The insulating shell is usually a plastic product, and its main function is to reduce the loss of electric energy during transmission. The discovery and use of electrici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/16
Inventor 刘育史珺陈湧
Owner NANKAI UNIV