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Preparation method of poly(2-aminothiazole)-SiO2 nanocomposite particle

A technology of nanocomposite particles and aminothiazole, which is applied in the field of polymer materials, can solve the problems that the performance of poly(2-aminothiazole cannot be well exerted, etc., and achieve the effect of improving dispersion and simple preparation and operation

Active Publication Date: 2017-09-22
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above preparation methods have successfully prepared poly(2-aminothiazole), the prepared poly(2-aminothiazole) has obvious agglomeration problems, which makes the performance of poly(2-aminothiazole) not very good. to play

Method used

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  • Preparation method of poly(2-aminothiazole)-SiO2 nanocomposite particle
  • Preparation method of poly(2-aminothiazole)-SiO2 nanocomposite particle
  • Preparation method of poly(2-aminothiazole)-SiO2 nanocomposite particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]Step 1, weigh 1.25g SiO 2 Hydrosol (LudoxAS40, containing 40wt% SiO 2 , SiO 2 The particle size of the hydrosol is 20nm~24nm), 1.0g of 2-aminothiazole and 44.25ml of water were added to a round bottom flask to obtain a mixed solution, and stirred for 1 hour until the 2-aminothiazole was dissolved to obtain dispersion I.

[0031] Step 2, weigh 0.69g CuCl 2 2H 2 O add 5.0ml of water and stir until CuCl 2 2H 2 O dissolved, the CuCl 2 The aqueous solution was added dropwise to the dispersion I, and stirred at room temperature for 16 hours to obtain a black dispersion II.

[0032] Step 3, the dispersion II was centrifuged and washed five times under the conditions of a centrifugal rate of 5000rpm and a centrifugal time of 10min to obtain a black solid, which was then vacuum-dried to obtain poly(2-aminothiazole)-SiO 2 nanocomposite particles.

[0033] figure 1 It is the poly(2-aminothiazole)-SiO in Example 1 of the present invention 2 Scanning electron micrographs of...

Embodiment 2

[0036] Step 1, weigh 0.625g SiO 2 Hydrosol (LudoxAS40, containing 40wt% SiO 2 , SiO 2 The particle size of the hydrosol is 20nm-24nm), 1.0g of 2-aminothiazole and 44.625ml of water were added to a round bottom flask to obtain a mixed solution, and stirred for 1 hour until the 2-aminothiazole was dissolved to obtain dispersion I.

[0037] Step 2, weigh 0.69g CuCl 2 2H 2 O add 5.0ml of water and stir until CuCl 2 2H 2 O dissolved, the CuCl 2 The aqueous solution was added dropwise to the dispersion I, and stirred at room temperature for 16 hours to obtain a black dispersion II.

[0038] Step 3, the dispersion II was centrifuged and washed five times under the conditions of a centrifugal rate of 5000rpm and a centrifugal time of 10min to obtain a black solid, which was then vacuum-dried to obtain poly(2-aminothiazole)-SiO 2 nanocomposite particles.

[0039] image 3 It is poly(2-aminothiazole)-SiO in Example 2 of the present invention 2 Scanning electron micrographs of ...

Embodiment 3

[0042] Step 1, weigh 0.25g SiO 2 Hydrosol (LudoxAS40, containing 40wt% SiO 2 , SiO 2 The particle size of the hydrosol is 20nm~24nm), 1.0g of 2-aminothiazole and 44.85ml of water were added to a round bottom flask to obtain a mixed solution, and stirred for 1 hour until the 2-aminothiazole was dissolved to obtain dispersion I.

[0043] Step 2, weigh 0.69g CuCl 2 2H 2 O add 5.0ml of water and stir until CuCl 2 2H 2 O dissolved, the CuCl 2 The aqueous solution was added dropwise to the dispersion I, and stirred at room temperature for 16 hours to obtain a black dispersion II.

[0044] Step 3, the dispersion II was centrifuged and washed five times under the conditions of a centrifugal rate of 5000rpm and a centrifugal time of 10min to obtain a black solid, which was then vacuum-dried to obtain poly(2-aminothiazole)-SiO 2 nanocomposite particles.

[0045] Figure 5 It is poly(2-aminothiazole)-SiO in Example 3 of the present invention 2 Scanning electron micrographs of n...

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Abstract

The invention provides a preparation method of a poly(2-aminothiazole)-SiO2 nanocomposite particle. The method is characterized by including the steps of: 1, weighing SiO2 hydrosol, 2-aminothiazole and water, adding the substances into a round-bottom flask to obtain a mixed solution, and performing stirring for 1h till dissolution of 2-aminothiazole to obtain a dispersion solution I; 2, adding a CuCl2 aqueous solution dropwise into the dispersion solution I, and performing stirring at room temperature for a certain period of time o obtain a dispersion II; and 3, conducting repeated centrifugation and washing on the dispersion solution II, and finally performing vacuum drying to obtain the poly(2-aminothiazole)-SiO2 nanocomposite particle.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a poly(2-aminothiazole)-SiO 2 Preparation method of nanocomposite particles. Background technique [0002] Typical conductive polymers include polyaniline containing aromatic heterocycles, polypyrrole, polythiophene, etc., but such conductive polymers generally have disadvantages such as insoluble and difficult to process. For example, due to its chain rigidity and strong interaction between molecular chains, polyaniline has extremely poor solubility and is almost insoluble in most commonly used organic solvents, only partially soluble in N,N-dimethylformamide and N -Methylpyrrolidone, making it difficult to characterize, thus limiting the applications of this class of polymers. [0003] At present, methods to improve the water solubility of the above conductive polymers or their dispersibility in water include structural modification, doping induction, compounding and preparat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04C08G73/06C08K3/36
CPCC08G73/06C08G2261/43C08K3/36C08K2201/01C08L79/04
Inventor 邹华吴迪王霞
Owner UNIV OF SHANGHAI FOR SCI & TECH