A kind of preparation method of monodisperse solidified micelle particle

A monodisperse, particle-based technology, applied in chemical instruments and methods, colloid chemistry, colloid chemistry, etc., can solve problems such as limiting the development of colloidal crystals and lack of intermediate dimensions

Inactive Publication Date: 2016-06-01
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation of colloidal crystals requires good monodispersity of the particulate units and has thus far relied on silica, polystyrene and polyacrylamide microspheres, as well as inorganic nanoparticles, ranging in size from hundreds of nanometers to micrometers, or below 10 nm, the lack of intermediate-dimensional particles limits the development of colloidal crystals to a greater extent

Method used

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  • A kind of preparation method of monodisperse solidified micelle particle

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Experimental program
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Effect test

Embodiment 1

[0019] 1. Wash the styrene monomer with 10% sodium hydroxide solution, remove the polymerization inhibitor, and then use deionized water to wash off the excess alkali solution. After the solution is neutralized with pH test paper, add anhydrous sodium sulfate. Set to dry for 5h;

[0020] 2. Under the heating conditions of 20torr and 40°C, the dried styrene monomer is subjected to vacuum distillation, and the purified styrene monomer is stored in a dark box at 10°C for subsequent use;

[0021] 3. Weigh 0.04g of behenyltrimethylammonium bromide (C 22 TABr), 0.07g cetyltrimethylammonium bromide (C 16 TABr), 0.08g styrene in 1mL ethanol solution, under the condition of constant temperature stirring at 30 ℃, 150μL deionized water was added dropwise to the solution with Langer TJ-1A micro-injection pump, the dripping speed was set to 20μL / min, wait for After the solution is fully dissolved, continue stirring at constant temperature for 2h;

[0022] 4. Under the condition of const...

Embodiment 2

[0026] 1. The treatment method of styrene monomer is the same as above;

[0027] 2. Weigh 0.04gC 22 TABr, 0.07gC 16 TABr, 0.06g styrene in 1mLEtOH solution, under the condition of constant temperature stirring at 30 ℃, 150μL deionized water was added dropwise to the solution with Langer TJ-1A microsyringe pump, the dripping speed was set to 20μL / min, and the solution was fully After dissolving, continue stirring at constant temperature for 2h;

[0028] 3. Under the condition of constant temperature stirring at 30°C, continue to add water dropwise until the mass fraction of deionized water in the total solvent is 85wt%. After the dripping is completed, put the prepared solution into a 70°C oven to preheat for 1 hour;

[0029] 4. Under the protection of nitrogen atmosphere, add K of 1% by mass of styrene monomer to the preheated solution. 2 S 2 O 4 , the polymerization of styrene monomer was initiated under heating at 70 °C, and the reaction was stopped after 2 h.

[0030]...

Embodiment 3

[0032] 1. The treatment method of styrene monomer is the same as above;

[0033] 2. Weigh 0.04gC 22 TABr, 0.07gC 16 TABr and 0.04g styrene in 1mLEtOH solution, under the condition of constant temperature stirring at 30℃, 150μL deionized water was added dropwise to the solution with Langer TJ-1A micro-injection pump, and the dripping speed was set to 20μL / min. After dissolving, continue stirring at constant temperature for 2h;

[0034] 3. Under the condition of constant temperature stirring at 30 °C, continue to add water dropwise until the mass fraction of deionized water in the total solvent is 90 wt%. After the dripping is completed, put the prepared solution into a 70 °C oven to preheat for 1 hour;

[0035] 4. Under the protection of nitrogen atmosphere, add K of 1% by mass of styrene monomer to the preheated solution. 2 S 2 O 4 , the polymerization of styrene monomer was initiated under heating at 70 °C, and the reaction was stopped after 2 h.

[0036] The size of th...

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Abstract

The invention relates to a preparation method for monodisperse consolidation micelle particulates. The preparation method comprises the following steps that water-insoluble long alkane chain surfactants, short alkane chain surfactants and styrene are used as raw materials, the long alkane chain surfactants are dissolved in a cosolvent, the short alkane chain surfactants and the styrene are added into the cosolvent, and the mixture is stirred fully and evenly; deionized water is dropped into the mixture to drive the mixture to gather and a micelle solubilizing the styrene is formed, and the deionized water is continuously added until the deionized water is excessive; styrene polymerization is triggered to form monodisperse and consolidation spherical micelle particulates with different particle sizes. The monodisperse consolidation micelle particulates can act as units of novel colloidal crystal lattice arrangement, and novel colloidal crystal function materials are further prepared.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and relates to a preparation method of monodisperse consolidated micelle particles. Background technique [0002] Colloidal crystals are two-dimensional or three-dimensional close-packed aggregates formed by self-assembly of inorganic or polymer colloidal microspheres with a diameter of submicron or nanometer level and a monodisperse size under the action of gravity, electrostatic force or capillary force. (Ding Jing, et al., Advances in Chemistry, 2004, 16, 321~326.; Xia, Y.; etal. Adv. Mater. 2000, 12, 693~713.). Colloidal crystals have received high attention since their birth, because (1) they can be used as a model system to study the growth and melting of crystals, which is of great scientific significance (de Villeneuve, V.; et al. Science 2005, 309, 1231~1233.; Alsayed,A.;etal.Science2005,309,1207~1210.;Pham,K.;etal.Science2002,296,104~106.;Zhang,K.;Liu,X.Y.Nature2004,429,73...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00
CPCB01J13/00
Inventor 赵剑曦徐鑫志董文静
Owner FUZHOU UNIV
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