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Method for preparing aniline copolymer and intercalation nanocomposite material of inorganic clay by mechanochemical polymerization method

A nanocomposite material and inorganic clay technology, applied in the field of intercalated nanocomposite materials, can solve the problems of difficult film formation of doped polyaniline, limit the application of conductive polyaniline, affect the practical process, etc. The effect of obvious sexual effect and short preparation time

Inactive Publication Date: 2013-08-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyaniline doped with protonic acid has extremely poor solubility due to the rigidity of its molecular chain and the strong interchain force, which brings difficulties to the film formation of doped polyaniline and greatly affects its practical application process. , and the instability of dopants also limits the application of conductive polyaniline to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Put the montmorillonite into a round-bottomed flask with a branch, vacuumize and fill with argon twice, add comonomers equivalent to 0.05 times the weight of the montmorillonite, and the comonomers are aniline and 2,5-bis The molar ratio of methoxyaniline, aniline and 2,5-dimethoxyaniline is 1:3. After magnetic stirring, the round bottom flask is covered with tinfoil paper, and placed in the dark at room temperature for 24 hours to obtain a blended suspension;

[0017] 2) Grind the blended suspension with a mortar for 5 minutes, add ammonium persulfate, the molar ratio of ammonium persulfate and comonomer is 1:1, during the grinding process, cover the mortar with a funnel, and let argon flow through one end of the funnel , continue to grind for 0.5 hours until it becomes completely purple-black;

[0018] 3) After the reaction, wash with water and absolute ethanol respectively, filter, and vacuum-dry to constant weight to obtain a montmorillonite intercalation nanocom...

Embodiment 2

[0020] 1) Put the kaolinite into a round-bottomed flask with a branch, evacuate and fill it with argon three times, add comonomers equivalent to 3.5 times the weight of kaolinite, and the comonomers are aniline and 2-methylaniline , the molar ratio of aniline and 2-methylaniline is 3:1, after magnetic stirring, the round-bottomed flask is covered with tinfoil, and placed in the dark at room temperature for 48 hours to obtain a blended suspension;

[0021] 2) Grind the blended suspension with a mortar for 10 minutes, add potassium dichromate, and the molar ratio of potassium dichromate and comonomer is 1:10. During the grinding process, cover the mortar with a funnel, and open one end of the funnel Argon, continue to grind for 1.2 hours until completely purple-black;

[0022] 3) After the reaction, wash with water and absolute ethanol respectively, filter, and vacuum-dry to constant weight to obtain a kaolinite intercalation nanocomposite.

Embodiment 3

[0024] 1) Put the montmorillonite into a round-bottomed flask with a branch, evacuate and fill it with argon for 3 times, add comonomers equivalent to 1.5 times the weight of the montmorillonite, and the comonomers are aniline and 2-aminobenzoic acid , the molar ratio of aniline to 2-aminobenzoic acid is 1:1, after magnetic stirring, the round-bottomed flask is covered with tinfoil, and placed in the dark at room temperature for 24 hours to obtain a blended suspension;

[0025] 2) Grind the blended suspension with a mortar for 5 minutes, add potassium iodate, and the molar ratio of potassium iodate and comonomer is 1:2. During the grinding process, cover the mortar with a funnel, and argon is passed through one end of the funnel , continue to grind, the grinding time is 0.7 hours, until it becomes completely purple-black;

[0026] 3) After the reaction, wash with water and ethanol respectively, filter, and vacuum-dry to constant weight, and intercalate the nanocomposite materi...

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Abstract

The invention discloses a method for preparing an aniline copolymer and an intercalation nanocomposite material of inorganic clay by a mechanochemical polymerization method. The method comprises the following steps of: (1) placing inorganic clay into a round-bottom flask with a branch port, vacuum-pumping, fully filling with argon, adding a copolymerization monomer, wrapping a tin foil out of the round-bottom flask after magnetically stirring, and stewing out of light under normal temperature, to obtain a blending fluid suspension; (2) grinding the blending fluid suspension, adding an oxidizing agent, covering a mortar with a tunnel in a grinding process, introducing argon into one end of the tunnel, continuously grinding, until to become atropurpureus completely; and (3) washing with water and absolute ethyl alcohol respectively after reaction, and filtrating, vacuum-drying until constant weight, to obtain the intercalation nanocomposite material of inorganic clay. The intercalation nanocomposite material of inorganic clay and polyaniline copolymer in the invention, greatly raises a dissolving performance and mechanical properties, and simultaneously makes the applications of clay wider The preparation method is simple, and an intercalation rate of a copolymer is high.

Description

technical field [0001] The invention relates to a method for preparing an intercalation nanocomposite material of aniline copolymer and inorganic clay by mechanochemical polymerization. Background technique [0002] Polyaniline has good air stability, heat resistance and electromagnetic wave absorption ability, and is an ideal shielding material. Compared with metal shielding materials, polyaniline also has the advantage of corrosion resistance. In addition, excellent electrical conductivity and high charge storage capacity can be achieved by proton-acid doping. With different doping concentrations, polyaniline changes from an insulator to a p type semiconductor with a conductivity of 10 -3 ~10 S cm -1 . According to different synthesis methods and conditions, the electrical conductivity, morphology and performance of polyaniline are quite different. The electrochemical method makes the synthesis and doping complete in one step, and the product has high purity. Polyan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08K3/34C08L79/02
Inventor 郑豪叶瑛李俊潘可臻潘依雯周璐夏枚生陈雪刚
Owner ZHEJIANG UNIV
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