CN109231218A - A kind of preparation method of amphipathic Janus SiO2 nanoparticle - Google Patents
A kind of preparation method of amphipathic Janus SiO2 nanoparticle Download PDFInfo
- Publication number
- CN109231218A CN109231218A CN201811138230.9A CN201811138230A CN109231218A CN 109231218 A CN109231218 A CN 109231218A CN 201811138230 A CN201811138230 A CN 201811138230A CN 109231218 A CN109231218 A CN 109231218A
- Authority
- CN
- China
- Prior art keywords
- nano
- sio
- meter sio
- polystyrene resin
- mass parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of preparation methods of amphipathic Janus SiO2 nanoparticle.Technical solution of the present invention: firstly, with Nano-meter SiO_22, silane coupling A -151 be raw material, hydrophobic modification Nano-meter SiO_22；Then, under the melting temperature of polystyrene resin, by dewatering nano SiO2A part be deposited in polystyrene resin, Nano-meter SiO_2 is etched by air plasma2Exposed a part etches particles hydrophobic group for hydrophilic radical.Finally, release particle obtains amphipathic Janus SiO with organic solvent dissolved polystyrene2Nanoparticle.The advantage of the invention is that preparing highly asymmetric amphipathic SiO with simply and easily method2Nanoparticle, and this method environmental pollution is small, also has very high versatility, can modify the surface of various particles.
Description
Technical field
The present invention relates to a kind of preparation methods of asymmetric nanoparticle, and in particular to a kind of amphipathic Janus SiO2 receives
The preparation method of rice corpuscles.
Background technique
Janus particle is mainly the chemical group difference by its particle two halves ball surface and leads to its dissymmetrical structure, such as
Hydrophilic/hydrophobic, polar/non-polar, positive charge/negative electrical charge etc..For hydrophilic/hydrophobic nanoparticle due to it geometric shape and
Surface chemistry effect determines that it possesses excellent package assembly and Interfacial Adsorption behavioral performance, makes it in surfactant, urges
Agent, medical domain functional coating and biosensor etc. have potential application prospect.But equally determine its preparation side
Method is relatively difficult, and for amphipathic Janus particle, the requirement of thermodynamic stability is intended to its surface free energy minimum, leads
Final particle is caused easily to form the spheroidal particle with uniform outer surface and minimum energy.So using the side of conventional synthesis particle
Method is to hardly result in amphipathic Janus particle.
Currently, the preparation method of Janus particle have Pickering emulsion method, template, miniemulsion method, phase separation of emulsions,
Microfluid method etc..In numerous preparation methods, micro-fluidic technologies have good monodispersity and higher controllability, but need
Want special equipment.Relatively large sized due to most of fluid channel, obtained Janus particle diameter is also larger；
The usual pattern of sample of Pickering emulsion method preparation is bad, partial size is not uniform enough；And template is due to stabilization with higher
Property and it is good it is narrow between confinement act on, can strictly control the size and pattern of nano material, pattern can be prepared and compare rule
Whole, function admirable amphipathic Janus particle, and this method environmental pollution is small also has very high versatility, can be with
The surface of various particles is modified.Therefore, the present invention uses a kind of preparation side of amphipathic Janus SiO2 nanoparticle
Method.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of amphipathic Janus SiO2 nanoparticle, the preparation methods
Simply, convenient that also there is very high versatility, and the pattern for the amphipathic Janus particle prepared is more regular, performance is excellent
It is good, solve the problems, such as that the partial size that other preparation methods are faced is also larger, pattern is bad, partial size is not uniform enough.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of preparation method of amphipathic Janus SiO2 nanoparticle, comprising the following steps:
Step 1: with Nano-meter SiO_22, silane coupling A -151 be raw material, hydrophobic modification Nano-meter SiO_22；
Step 2: organic solvent diluting polystyrene resin is used, the polystyrene solution diluted is spin-coated on polytetrafluoroethylene (PTFE)
On plate；
Step 3: hydrophobization Nano-meter SiO_2 is dissolved with dehydrated alcohol2, then it is spin-coated on polystyrene resin film, in polyphenyl
Allow Nano-meter SiO_2 under the melting temperature of ethylene2A part is deposited in polystyrene resin；
Step 4: it is etched with air plasma by Nano-meter SiO_22The hydrophobic grouping of exposed a part is etched into hydrophilic radical；
Polystyrene resin is dissolved with tetrahydrofuran, release particle obtains amphipathic Janus SiO2Nanoparticle.
Further, a kind of preparation method of amphipathic Janus SiO2 nanoparticle, the specific steps are as follows:
Step 1: firstly, by the Nano-meter SiO_2 of 2.000 mass parts2It is dissolved in the deionized water of 70.000 mass parts, ultrasonic 10min
Obtain Nano-meter SiO_22Solution；The silane coupling A -151 of 2.000-8.000 mass parts is dissolved in the anhydrous of 70.000 mass parts again
In ethyl alcohol, A-151 solution is stirred to get；Then, Nano-meter SiO_2 ultrasound obtained2Solution is added to the three-necked flask of 250mL
In, and A-151 solution is added, it is then stirred to react at normal temperature, obtains milk-white coloured suspension.It is finally centrifugation, dry
To the Nano-meter SiO_2 of hydrophobization2。
Step 2: diluting the polystyrene resin of 5.000 mass point with the methylene chloride of 5.000-15.000 mass parts, will
The polystyrene solution diluted is spin-coated on polyfluortetraethylene plate；
Step 3: by the Nano-meter SiO_2 of 0.100-1.000 mass parts2It is dissolved in the dehydrated alcohol of 20.000 mass point, ultrasound point
Dissipate 10 min；Then it is spin-coated on polystyrene resin film, using the melting temperature of polystyrene, is placed at 90 DEG C
10min, 240 DEG C of 15 min of placement.So that dewatering nano SiO2A part be deposited in polystyrene resin；
Step 4: 10 min are etched with air plasma, by Nano-meter SiO_22The hydrophobic grouping etching of exposed a part is got married
Water base group；It is washed for several times with tetrahydrofuran, polystyrene resin is dissolved, release particle obtains amphipathic Janus SiO2Nanometer
Particle.
Further, in step 1, the rate of stirring is 30 r/min, and the time being stirred to react is 24 h.
Further, in step 4, the time of air plasma etching is 5min-15min.
Compared with prior art, the invention has the benefit that
A kind of presently disclosed amphipathic Janus SiO2The preparation method of nanoparticle, the work with class surfactant
With this particle emulsifying agents, which can make surface-active increase oil-water interfacial tension, to be significantly reduced to 51.3 mN/m, has its cream
Change ability and interface stability, and this method preparation process is simply, conveniently；And the advantages that environmental pollution is small has
Good application prospect.
Specific embodiment
With reference to embodiment to a kind of preparation method of amphipathic Janus SiO2 nanoparticle of the invention
Preparation method be described in further details.
Embodiment 1:
Step 1: firstly, by the Nano-meter SiO_2 of 2.000 mass parts2It is dissolved in the deionized water of 70.000 mass parts, ultrasonic 10min
Obtain Nano-meter SiO_22Aqueous solution；Then, the A-151 of 2.000 mass parts is dissolved in the dehydrated alcohol of 70.000 mass parts, is stirred
Obtain A-151 solution；Finally, the Nano-meter SiO_2 that ultrasound is obtained2Solution is added in the three-necked flask of 250mL, to three-necked flask
Middle addition A-151 solution, under the mixing speed of 30rpm, 24 h of normal-temperature reaction, last milk-white coloured suspension.It is centrifugation, dry
To the Nano-meter SiO_2 of hydrophobization2。
Step 2: the polystyrene resin of 5.000 mass point is diluted with the methylene chloride of 5.000 mass parts, will be diluted
Polystyrene solution be spin-coated on polyfluortetraethylene plate；
Step 3: by the Nano-meter SiO_2 of 0.100 mass point2It is dissolved in the dehydrated alcohol of 20.000 mass point, ultrasonic disperse 10
min；Then it is spin-coated on polystyrene resin film, using the melting temperature of polystyrene, in 90 DEG C of placement 10min, 240
DEG C place 15 min.
Step 4: 10 min are etched with air plasma, by Nano-meter SiO_22The hydrophobic grouping of exposed a part etches
At hydrophilic radical；It is washed 3 times with tetrahydrofuran, polystyrene resin is dissolved, release particle obtains amphipathic Janus SiO2
Nanoparticle.
Embodiment 2:
Step 1: firstly, by the Nano-meter SiO_2 of 2.000 mass parts2It is dissolved in the deionized water of 70.000 mass parts, ultrasound
10min obtains Nano-meter SiO_22Aqueous solution；Then, the A-151 of 4.000 mass parts is dissolved in the dehydrated alcohol of 70.000 mass parts
In, stir to get A-151 solution；Finally, the Nano-meter SiO_2 that ultrasound is obtained2Solution is added in the three-necked flask of 250mL, to
A-151 solution is added in three-necked flask, under the mixing speed of 30rpm, 24 h of normal-temperature reaction, last milk-white coloured suspension.From
The heart, the Nano-meter SiO_2 for being dried to obtain hydrophobization2。
Step 2: the polystyrene resin of 5.000 mass point is diluted with the methylene chloride of 10.000 mass parts, will be diluted
Polystyrene solution be spin-coated on polyfluortetraethylene plate；
Step 3: by the Nano-meter SiO_2 of 0.100 mass point2It is dissolved in the dehydrated alcohol of 20.000 mass point, ultrasonic disperse 10
min；Then it is spin-coated on polystyrene resin film, using the melting temperature of polystyrene, in 90 DEG C of placement 10min, 240
DEG C place 15 min.
Step 4: 10 min are etched with air plasma, by Nano-meter SiO_22The hydrophobic grouping of exposed a part etches
At hydrophilic radical；It is washed 4 times with tetrahydrofuran, polystyrene resin is dissolved, release particle obtains amphipathic Janus SiO2
Nanoparticle.
Embodiment 3:
Step 1: firstly, by the Nano-meter SiO_2 of 2.000 mass parts2It is dissolved in the deionized water of 70.000 mass parts, ultrasonic 10min
Obtain Nano-meter SiO_22Aqueous solution；Then, the A-151 of 6.000 mass parts is dissolved in the dehydrated alcohol of 70.000 mass parts, is stirred
Obtain A-151 solution；Finally, the Nano-meter SiO_2 that ultrasound is obtained2Solution is added in the three-necked flask of 250mL, to three-necked flask
Middle addition A-151 solution, under the mixing speed of 30rpm, 24 h of normal-temperature reaction, last milk-white coloured suspension.It is centrifugation, dry
To the Nano-meter SiO_2 of hydrophobization2。
Step 2: the polystyrene resin of 5.000 mass point is diluted with the methylene chloride of 15.000 mass parts, will be diluted
Polystyrene solution be spin-coated on polyfluortetraethylene plate；
Step 3: by the Nano-meter SiO_2 of 0.100 mass point2It is dissolved in the dehydrated alcohol of 20.000 mass point, ultrasonic disperse 10
min；Then it is spin-coated on polystyrene resin film, using the melting temperature of polystyrene, in 90 DEG C of 10 min of placement,
240 DEG C of 15 min of placement.
Step 4: 10 min are etched with air plasma, by Nano-meter SiO_22The hydrophobic grouping of exposed a part etches
At hydrophilic radical；It is washed 3 times with tetrahydrofuran, polystyrene resin is dissolved, release particle obtains amphipathic Janus SiO2
Nanoparticle.
In order to test the performance of particle prepared by the present invention, the present inventor it has been carried out surface tension, emulsifiability with
And the test such as stability of emulsion, the results showed that amphipathic Janus SiO2Surface tension can be significantly reduced to 51.3 in nanoparticle
mN/m；It is with good stability for stablizing oil-water interface as emulsifier, placement one week can be stablized.
Above embodiments are only used for being described in further detail summary of the invention of the invention, but should not understand this
Range for the above-mentioned theme of the present invention is only limitted to above-described embodiment.Without departing from the idea case in the present invention described above, according to
It is to be protected should all to be included in the present invention for this field common technological know-how and conventional means, the various replacements and change made
In range.
Claims (4)
1. a kind of preparation method of amphipathic Janus SiO2 nanoparticle, which comprises the following steps:
Step 1: with Nano-meter SiO_22, silane coupling A -151 be raw material, hydrophobic modification Nano-meter SiO_22；
Step 2: organic solvent diluting polystyrene resin is used, the polystyrene solution diluted is spin-coated on polytetrafluoroethylene (PTFE)
On plate；
Step 3: hydrophobization Nano-meter SiO_2 is dissolved with dehydrated alcohol2, then it is spin-coated on polystyrene resin film, in polyphenyl
Allow Nano-meter SiO_2 under the melting temperature of ethylene2A part is deposited in polystyrene resin；
Step 4: it is etched with air plasma by Nano-meter SiO_22The hydrophobic grouping of exposed a part is etched into hydrophilic radical；With
Tetrahydrofuran dissolves polystyrene resin, and release particle obtains amphipathic Janus SiO2Nanoparticle.
2. a kind of preparation method of amphipathic Janus SiO2 nanoparticle according to claim 1, which is characterized in that
The step specifically:
Step 1: firstly, by the Nano-meter SiO_2 of 2.000 mass parts2It is dissolved in the deionized water of 70.000 mass parts, ultrasonic 10min
Obtain Nano-meter SiO_22Solution；The silane coupling A -151 of 2.000-8.000 mass parts is dissolved in the anhydrous of 70.000 mass parts again
In ethyl alcohol, A-151 solution is stirred to get；Then, Nano-meter SiO_2 ultrasound obtained2Solution is added to the three-necked flask of 250mL
In, and A-151 solution is added, is then stirred to react at normal temperature, obtains milk-white coloured suspension, it is finally centrifugation, dry
To the Nano-meter SiO_2 of hydrophobization2；
Step 2: the polystyrene resin of 5.000 mass point is diluted with the methylene chloride of 5.000-15.000 mass parts, will be diluted
Good polystyrene solution is spin-coated on polyfluortetraethylene plate；
Step 3: by the Nano-meter SiO_2 of 0.100-1.000 mass parts2It is dissolved in the dehydrated alcohol of 20.000 mass point, ultrasound point
Dissipate 10 min；Then it is spin-coated on polystyrene resin film, using the melting temperature of polystyrene, is placed at 90 DEG C
10min, 240 DEG C of 15 min of placement, so that dewatering nano SiO2A part be deposited in polystyrene resin；
Step 4: 10 min are etched with air plasma, by Nano-meter SiO_22The hydrophobic grouping of exposed a part is etched into hydrophilic
Group；It is washed for several times with tetrahydrofuran, polystyrene resin is dissolved, release particle obtains amphipathic Janus SiO2Nanoparticle
Son.
3. a kind of preparation method of amphipathic Janus SiO2 nanoparticle according to claim 2, it is characterised in that: step
In rapid one, the rate of stirring is 30 r/min, and the time being stirred to react is 24 h.
4. a kind of preparation method of amphipathic Janus SiO2 nanoparticle according to claim 2, it is characterised in that: step
In rapid four, the time of air plasma etching is 5min-15min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138230.9A CN109231218B (en) | 2018-09-28 | 2018-09-28 | Preparation method of amphiphilic Janus SiO2 nanoparticles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811138230.9A CN109231218B (en) | 2018-09-28 | 2018-09-28 | Preparation method of amphiphilic Janus SiO2 nanoparticles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109231218A true CN109231218A (en) | 2019-01-18 |
| CN109231218B CN109231218B (en) | 2022-02-18 |
Family
ID=65057925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811138230.9A Active CN109231218B (en) | 2018-09-28 | 2018-09-28 | Preparation method of amphiphilic Janus SiO2 nanoparticles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109231218B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111154389A (en) * | 2018-11-07 | 2020-05-15 | 现代自动车株式会社 | Polyurethane-silicon dioxide composite material coating composition, polyurethane-silicon dioxide composite film and preparation method thereof |
| CN112940205A (en) * | 2021-02-07 | 2021-06-11 | 天津大学 | Preparation method and application of temperature-sensitive nano-silica surfactant with asymmetric structure |
| WO2022178846A1 (en) * | 2021-02-26 | 2022-09-01 | 中国科学院生态环境研究中心 | Reusable multifunctional nano-surfactant and preparation method therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733052A (en) * | 2010-01-25 | 2010-06-16 | 吉林大学 | Preparation method of heterogeneous binary asymmetric particles |
| DE102010010792A1 (en) * | 2010-03-09 | 2011-09-15 | Pss Polymer Standards Service Gmbh | Layer switchable to hydrophilic or hydrophobic to an external stimulus in a reversible manner, useful e.g. for coating of furniture and artificial leathers, comprises core-sheath-particles with a core and a sheath of triblock-copolymer |
| CN103204508A (en) * | 2013-04-12 | 2013-07-17 | 中国科学院化学研究所 | Janus nano material with double properties and preparation method of Janus nano material |
| CN106084215A (en) * | 2016-06-20 | 2016-11-09 | 陕西师范大学 | The bionical method constructing functionalization Janus particle |
| CN107416844A (en) * | 2017-08-09 | 2017-12-01 | 中国石油天然气股份有限公司 | Nano silicon dioxide dispersion and preparation method with parents characteristic and double grains minor structure |
-
2018
- 2018-09-28 CN CN201811138230.9A patent/CN109231218B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733052A (en) * | 2010-01-25 | 2010-06-16 | 吉林大学 | Preparation method of heterogeneous binary asymmetric particles |
| DE102010010792A1 (en) * | 2010-03-09 | 2011-09-15 | Pss Polymer Standards Service Gmbh | Layer switchable to hydrophilic or hydrophobic to an external stimulus in a reversible manner, useful e.g. for coating of furniture and artificial leathers, comprises core-sheath-particles with a core and a sheath of triblock-copolymer |
| CN103204508A (en) * | 2013-04-12 | 2013-07-17 | 中国科学院化学研究所 | Janus nano material with double properties and preparation method of Janus nano material |
| CN106084215A (en) * | 2016-06-20 | 2016-11-09 | 陕西师范大学 | The bionical method constructing functionalization Janus particle |
| CN107416844A (en) * | 2017-08-09 | 2017-12-01 | 中国石油天然气股份有限公司 | Nano silicon dioxide dispersion and preparation method with parents characteristic and double grains minor structure |
Non-Patent Citations (1)
| Title |
|---|
| XING YI LING ET AL.: "Janus Particles with Controllable Patchiness and Their Chemical Functionalization and Supramolecular Assembly", 《ANGEWANDTE CHEMIE》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111154389A (en) * | 2018-11-07 | 2020-05-15 | 现代自动车株式会社 | Polyurethane-silicon dioxide composite material coating composition, polyurethane-silicon dioxide composite film and preparation method thereof |
| US11299640B2 (en) | 2018-11-07 | 2022-04-12 | Hyundai Motor Company | Polyurethane-silica composite-based coating composition, polyurethane-silica composite film, and method of preparing the same |
| US11873419B2 (en) | 2018-11-07 | 2024-01-16 | Hyundai Motor Company | Polyurethane-silica composite-based coating composition, polyurethane-silica composite film, and method of preparing the same |
| CN112940205A (en) * | 2021-02-07 | 2021-06-11 | 天津大学 | Preparation method and application of temperature-sensitive nano-silica surfactant with asymmetric structure |
| WO2022178846A1 (en) * | 2021-02-26 | 2022-09-01 | 中国科学院生态环境研究中心 | Reusable multifunctional nano-surfactant and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109231218B (en) | 2022-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109231218A (en) | A kind of preparation method of amphipathic Janus SiO2 nanoparticle | |
| WO2016026464A1 (en) | Organic/inorganic hybrid janus particle and preparation method and modification method, and modified janus particle and use thereof | |
| CN106563398B (en) | A kind of preparation method and applications of the organic/inorganic complex microsphere of raspberry shape structure | |
| JP2023072023A (en) | Production method of latex and production method of hollow resin particles | |
| US4049604A (en) | Emulsion polymerization method for preparing aqueous dispersions of organic polymer particles | |
| CN104559327B (en) | A kind of surface modified nano calcium carbonate with core shell structure and preparation method thereof | |
| CN104250350A (en) | Method for preparing porous polymer material with through-pore structure | |
| JP2019528158A (en) | Thermally expandable thermoplastic microspheres and methods for their preparation | |
| WO2002100971A1 (en) | Heat-expandable microsphere and process for producing the same | |
| CN108314756A (en) | Thermal expansion microsphere prepared based on Pickering in-situ miniemulsion and preparation method thereof | |
| TW201434530A (en) | Microcapsule heat storage material, production method thereof and use thereof | |
| CN109279640A (en) | A kind of barium sulfate material and preparation method thereof | |
| CN104448168A (en) | Preparation method as well as product and application of organic-inorganic hybrid hollow microsphere | |
| CN101631808A (en) | Redispersible core-shell polymers and a process for preparing them | |
| JPWO2019188996A1 (en) | Hollow resin particles and sheets | |
| CN101670255B (en) | Method for preparing functional magnetic high molecular microsphere by super-thick emulsion method | |
| JPS61215602A (en) | Production of polymer particle | |
| JP5016955B2 (en) | Single-hole hollow particles and method for producing the same | |
| CN113698921A (en) | Controllable preparation method of novel amphiphilic particle material | |
| JPS62121701A (en) | Production of polymer particle | |
| JP6657847B2 (en) | Polyvinyl chloride resin particles coated with inorganic fine particles and method for producing the same | |
| US10850304B2 (en) | Method and device for processing microstructure arrays of polystyrene-graphene nanocomposites | |
| CN109954453B (en) | Temperature response type PNIPAM organic hydrogel material and preparation method and application thereof | |
| Keller et al. | A simple microfluidic tool to design anisotropic microgels | |
| CN106145121A (en) | Hollow that double silicon sources guide and sandwich hollow silica mesoporous material and synthetic method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |