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Organic-inorganic nano composite particle as well as preparation method and application thereof

A technology of inorganic nano and composite particles, applied in the field of polymer materials, can solve the problems of complicated operation procedures and difficult separation of organic-inorganic composite nanoparticles, and achieve the effect of high solid content, strong versatility and clean system

Active Publication Date: 2021-09-03
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for easy creation of small particle size composite material with specific properties such as strength, flexibility, purity, soluble matter contents, etc., which could potentially make it useful in various applications like thermal management systems (TMS).

Problems solved by technology

This patented describes methods for creating organized structures called pyrrolidone-functionalised polymers or metallopolypuronene compounds. They use certain types of monomers like acetophenones or formaldehydes to bind together different chemical moieties onto these molecules. By adjusting specific conditions during this process, they allow for precise control over how well each component interacts within them. Overall, it provides technical means for making new material systems based on their properties.

Method used

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  • Organic-inorganic nano composite particle as well as preparation method and application thereof
  • Organic-inorganic nano composite particle as well as preparation method and application thereof
  • Organic-inorganic nano composite particle as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Fe 3 O 4 Preparation of @polyisoprene-b-poly(4-vinylpyridine) nanocomposite particles

[0047] Preparation of S1 polyisoprene macroinitiator

[0048] First, 62.5mL of toluene (54.35g), 7.3mL of tetrahydrofuran (6.52g), and 9.4mL of isoprene (6.40g) were poured into a dry and clean 250mL ampoule bottle in turn, placed in an ice-water bath to start stirring, and filled with Then, 1.0 mL of n-butyllithium (1.60 mmol / mL) was quickly poured into the ampoule, and the reaction was carried out for 30 min to obtain the macromolecular initiator PI. M n,SEC =5,500g / mol,M w / M n =1.11.

[0049] Preparation of S2 polyisoprene-b-poly(4-vinylpyridine) block polymer nanoparticle self-assembled

[0050] First, a mixture of 5.0 mL of toluene (4.40 g) and 0.9 mL of diphenylethylene (1.15 g) was added to the above-mentioned ampoule bottle containing the polyisoprene macroinitiator, the reaction system immediately turned red, and the reaction continued to be stirred. 20min. Then, 5...

Embodiment 2

[0056] Preparation of NiO@polybutadiene-b-poly(2-vinylpyridine) nanocomposite particles

[0057] The isoprene monomer in Example 1S1 was replaced with butadiene, the 4-vinylpyridine monomer in Example 1S2 was replaced with 2-vinylpyridine, the FeCl in Example 1S4 was replaced with 2 , FeCl 3 The NiO@polybutadiene-b-poly(2-vinylpyridine) nanocomposite particles can be prepared by replacing with 0.6217g nickel nitrate hexahydrate, passing hydrogen into it and reducing at 200°C for 5h, and other steps are the same as those in Example 1.

Embodiment 3

[0059] TiO 2 Preparation of @polymyrcene-b-poly(4-vinylpyridine) nanocomposite particles

[0060] The isoprene monomer in Example 1S1 was replaced with myrcene, and the FeCl in Example 1S4 was replaced by 2 , FeCl 3 Replace with 0.3163g of titanium tetraisopropoxide (TTIP), replace the ammonia water with 1ml of ethylene glycol, heat at 180°C for reduction for 2h, and the other steps are the same as in Example 1, to prepare TiO 2 @Polymyrcene-b-poly(4-vinylpyridine) nanocomposite particles.

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Abstract

The invention relates to an organic-inorganic nano composite particle and a preparation method and application thereof, in the preparation process, active anionic polymerization is utilized to initiate polymerization of diene monomers or styrene monomers to obtain a macroinitiator; activity conversion on an active center of the polymer macroinitiator is carried out by using 1, 1-diphenylethylene, and initiating of a vinylpyridine monomer to carry out active anionic polymerization induced self-assembly is realized, so that block polymer nano self-assembled particles are obtained; cross-linking of the nano self-assembled particles is carried out by using a cross-linking agent and the nano self-assembled particles are taken as a polymer template; a pyridine group is complexed with metal ions, and a series of organic-inorganic nano composite particles are prepared through a reduction reaction. The preparation method of the organic-inorganic nano composite particles prepared by the invention is realized in one pot, and has the advantages of simplicity, high efficiency, strong universality, clean system, high solid content, controllable morphology and the like.

Description

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Claims

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Application Information

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Owner FUDAN UNIV
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