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Method for preparing nano-porous material based on annular micelle multi-stage assembling

A nanoporous and micelle technology, which is applied in the field of preparation of nanoporous materials, can solve the problem that the induced assembly method is difficult to control the uniformity of the pore structure, and achieve the effect of low assembly efficiency, uniform size and stable structure

Active Publication Date: 2018-11-13
SHANGHAI TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to control the uniformity of the pore structure of the induced assembly method, so improving the purity of the pore structure of porous materials (especially soft matter-based porous materials) prepared by this method has always been a major research difficulty and challenge.

Method used

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  • Method for preparing nano-porous material based on annular micelle multi-stage assembling
  • Method for preparing nano-porous material based on annular micelle multi-stage assembling
  • Method for preparing nano-porous material based on annular micelle multi-stage assembling

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preparation example Construction

[0045] (1) Preparation of cyclic micelles

[0046]Tetrahydrofuran was purified by sodium distillation under nitrogen atmosphere; isoprene, 2-vinylpyridine, and 1,1-stilbene were stirred overnight with calcium hydride, then purified by distillation, and then added a small amount of trioctyl aluminum, purified by distillation; lithium chloride , p-tert-butylphenol is treated at a high temperature of 120°C.

[0047] Preparation of polyisoprene-b-poly(2-vinylpyridine) block copolymer by anionic polymerization: Dissolve isoprene (1 mL, 10.0 mmol) in tetrahydrofuran in an argon atmosphere glove box (20 mL), 1.3 M sec-butyllithium (7.4 μL, 9.6 μmol) was added under stirring conditions to initiate monomer polymerization, and the reaction was stirred at -30° C. for 4 h. Subsequently, 2 mL of the solution was taken out, and a small amount of p-tert-butylphenol was added to terminate the reaction, which was used for subsequent H-NMR and gel permeation chromatography analyses. The remai...

Embodiment 2

[0060] A method for preparing nanoporous materials based on multi-stage assembly of annular micelles, the specific steps are:

[0061] (1) Preparation of cyclic micelles

[0062] Tetrahydrofuran was purified by sodium distillation under nitrogen atmosphere; isoprene, 2-vinylpyridine, and 1,1-stilbene were stirred overnight with calcium hydride, then purified by distillation, and then added a small amount of trioctyl aluminum, purified by distillation; lithium chloride , p-tert-butylphenol is treated at a high temperature of 120°C.

[0063] Preparation of polyisoprene-b-poly(2-vinylpyridine) block copolymer by anionic polymerization: Dissolve isoprene (1 mL, 10.0 mmol) in tetrahydrofuran in an argon atmosphere glove box (20 mL), 1.3 M sec-butyllithium (9.2 μL, 12 μmol) was added under stirring conditions to initiate monomer polymerization, and the reaction was stirred at -30° C. for 4 h. Subsequently, 2 mL of the solution was taken out, and a small amount of p-tert-butylpheno...

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Abstract

The invention provides a method for preparing a nano-porous material based on annular micelle multi-stage assembling. The method is characterized by comprising the following steps: mixing an annular micelle with glue molecules, and standing, thus obtaining the nano-porous material, wherein the glue molecules contain hydrogen-bond donor chain sections which can be in hydrogen-bond interaction withthe annular micelle and solvophobic chain sections which can be gathered in a solution. The method provided by the invention is different from a traditional porous material preparation technology, andthe annular micelle in uniform structure is directly used as a porous structure source, so that the porous structure regularity of the nano-porous material in a soft matter system is greatly improved; the method is simple and efficient, and has a wide application prospect in the fields of catalysis, energy, medium separation and the like.

Description

technical field [0001] The invention relates to a method for preparing nanoporous materials, in particular to a method for preparing nanoporous materials based on the multi-stage assembly of annular micelles. Background technique [0002] Due to the advantages of large specific surface area, adjustable pore structure, and subsequent functionalization, porous materials have potential applications in the fields of catalysis, energy, and separation media. Traditional methods for preparing ordered porous materials include alumina etching, breathing pattern method, mesoporous silicon template method, metal-organic framework and covalent organic framework preparation, etc., see the following non-patent documents 1-5. At present, induced assembly has gradually become a novel preparation method for porous materials, and its assembly units include small molecules, DNA, polymers, colloidal particles, etc., see the following non-patent documents 6-9. However, it is difficult to contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/09C08L53/00C08L83/10C08L53/02
CPCC08J3/09C08J2353/00C08J2453/02C08J2483/10
Inventor 邱惠斌蔡建东屠春来
Owner SHANGHAI TECH UNIV
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