CN112538180A - Water-assisted polyethylene oxide single crystal film and preparation method thereof - Google Patents
Water-assisted polyethylene oxide single crystal film and preparation method thereof Download PDFInfo
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- C08J5/18—Manufacture of films or sheets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
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- C—CHEMISTRY; METALLURGY
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- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/02—Polyalkylene oxides
Abstract
The invention relates to the field of preparation of polymer crystals, in particular to a water-assisted polyethylene oxide single crystal film and a preparation method thereof. The invention adopts polyoxyethylene as raw material and water as solvent to prepare polyoxyethylene aqueous solution, and then the polyoxyethylene aqueous solution is crystallized to obtain polyoxyethylene crystallization solution; and finally, rotationally coating on the substrate by adopting a spin coater for spin coating to form the water-assisted polyethylene oxide single crystal film. The preparation method provided by the invention is simple to operate, obvious in effect, nontoxic in solvent, safe to discharge, pollution-free, slow in crystal growth rate, and capable of observing the crystal growth process, and provides a good support for basic research on polymer macromolecule crystallization behavior. The prepared water-assisted polyethylene oxide single crystal film has the characteristics of environmental friendliness, greenness, no toxicity, good biocompatibility and high added value, and can be used for biological microcapsule drug coating, food packaging, drug delivery, semiconductor chip flow sheet, 3D printing and photovoltaic power generation.
Description
Technical Field
The invention relates to the field of preparation of polymer crystals, in particular to a water-assisted polyethylene oxide single crystal film and a preparation method thereof.
Background
With the intensive research on high polymer materials, the great investment on basic science and nanotechnology in China and the implementation of green sustainable development policy, the domestic demand of high polymer derivative products such as aramid fiber, chitosan, polyethylene oxide, polyvinyl alcohol, cellulose, sodium alginate and the like will continue to increase, and the high polymer materials have great potential particularly in the development and application of new products.
Polyethylene oxide is one of synthetic polymers approved by the Food and Drug Administration (FDA) and rarely used as a medicine for in vivo injection, has the characteristics of good water solubility, flexibility, bacterial corrosion resistance, low toxicity, extremely weak immunogenicity, good dispersibility, good biocompatibility, stable biochemical property and the like, is widely applied to the fields of paper making, biomedicine, chemical industry, water treatment, aerospace, films, solid electrolytes, food packaging, drug coating, development of positive and negative electrode materials of lithium ion batteries, photovoltaic power generation, semiconductor manufacturing and the like, and has extremely wide market space in China.
Spin coating is a widely used multifunctional technique for depositing materials onto a substrate to obtain precisely controllable film thicknesses. The spin coater for spin coating is simple to operate, small and compact in structure and small in occupied space, and provides an ideal solution for a laboratory. The tray of the spin coater for spin coating can achieve good spin coating effect without a vacuum pump or nitrogen filling; a leveling device is arranged in the spin coater, so that the spin coating is ensured to be uniform to the maximum extent; spin coating can be performed on substrates of different sizes. The spin coater for spin coating is widely applicable to surface coating processes of semiconductors, silicon wafers, substrates, conductive glass, plate making and the like, can be used for manufacturing films with the thickness of less than 10nm, and is widely used in cleaning and etching.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the invention aims to provide the preparation method of the water-assisted polyethylene oxide single crystal film, which has the characteristics of simple operation, obvious effect, no toxicity of a solvent, slow crystal growth rate, capability of observing the crystal growth process, real-time property, environment friendliness, greenness, no toxicity and good biocompatibility.
The invention also aims to provide the water-assisted polyethylene oxide single crystal film prepared by the preparation method.
The invention further aims to provide application of the water-assisted polyethylene oxide single crystal thin film.
The purpose of the invention is realized by the following technical scheme:
a preparation method of a water-assisted polyethylene oxide single crystal film comprises the following steps:
(1) preparation of polyoxyethylene crystallization solution: preparing a polyoxyethylene aqueous solution at the temperature of 40-70 ℃, then placing the polyoxyethylene aqueous solution in a constant-temperature water bath at the temperature of 0-12 ℃ for 0.5-12 h, then heating the system to 25-52 ℃ at the heating rate of 5-500 ℃/h, staying for 0.5-3 h to form stable seed crystals, and finally continuously crystallizing in the constant-temperature water bath at the temperature of 25-52 ℃ for 12-24 h to obtain a polyoxyethylene crystallization solution;
(2) preparation of water-assisted polyethylene oxide single crystal film: opening a cover plate above the spin coater for spin coating, placing the mica sheet in the right middle of the tray, controlling the pressure of an air compressor to be 0.1-0.3 MPa, dripping the polyoxyethylene crystallization solution prepared in the step (1) on the mica sheet, and spreading the polyoxyethylene crystallization solution on the mica sheet to form a thin layer by high-speed rotation to obtain a water-assisted polyoxyethylene single crystal film;
(3) drying of the water-assisted polyethylene oxide single crystal film: drying the water-assisted polyethylene oxide single crystal film prepared in the step (2) to obtain a finished water-assisted polyethylene oxide single crystal film;
the solvent of the polyethylene oxide aqueous solution described in the step (1) is preferably ultrapure water;
the concentration of the polyoxyethylene aqueous solution in the step (1) is preferably 0.01-10 wt%;
the method for preparing the polyethylene oxide aqueous solution described in the step (1) is preferably:
mixing polyoxyethylene and water at a heating temperature of 40-70 ℃, and standing at a constant temperature until the polyoxyethylene is completely dissolved; the constant-temperature retention time is preferably 0.5-12 h;
the high-speed rotation in the step (2) preferably comprises an acceleration stage, a constant speed stage and a deceleration stage; wherein:
and (3) an acceleration stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the acceleration time is 5-30 s;
a uniform speed stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the uniform speed time is 5-30 s;
and (3) a deceleration stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the deceleration time is 5-30 s;
the drying condition in the step (3) is preferably drying for 6-48 h at 25-80 ℃;
the drying in the step (3) can be carried out in a vacuum drying oven;
a water-assisted polyethylene oxide single crystal film, which is prepared by the preparation method;
the water-assisted polyethylene oxide single crystal film is applied to the field of high polymer materials;
compared with the prior art, the invention has the following advantages and effects:
(1) the invention adopts polyoxyethylene as raw material, utilizes water system (such as ultrapure water), combines a spin coater for spin coating to coat macromolecule solution, and prepares the polyoxyethylene monocrystal film by adjusting solution concentration, spin coating acceleration rate, spin coating acceleration time, spin coating uniform speed rate, spin coating uniform speed time, spin coating deceleration rate, spin coating deceleration time, air compressor pressure, drying temperature, drying time and the like.
(2) The water-assisted polyethylene oxide single crystal film prepared by the invention provides good support for basic research on polymer macromolecule crystallization behavior, and can be used for biological microcapsule drug coating, food packaging, drug delivery, semiconductor chip flow sheet, 3D printing, photovoltaic power generation and the like.
Drawings
FIG. 1 is an atomic force microscope scan of a water-assisted polyethylene oxide single crystal thin film obtained in example 1.
FIG. 2 is an atomic force microscope scanning amplitude error chart of the water-assisted polyethylene oxide single crystal thin film obtained in example 1.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
The invention relates to a preparation method of a water-assisted polyethylene oxide single crystal film, which comprises the following specific operation steps:
(1) preparation of polyoxyethylene crystallization solution: preparing a polyoxyethylene aqueous solution at the temperature of 40-70 ℃, then putting the polyoxyethylene aqueous solution into a constant-temperature water tank at the temperature of 0-12 ℃ for 0.5-12 h, then heating the system to 25-52 ℃ at the heating rate of 5-500 ℃/h, staying for 0.5-3 h to form stable seed crystals, and finally continuously crystallizing for 12-24 h in the constant-temperature water tank at the temperature of 25-52 ℃ to obtain a polyoxyethylene crystallization solution;
(2) preparation of water-assisted polyethylene oxide single crystal film: opening a cover plate above the spin coater for spin coating, placing the mica sheet in the right middle of the tray, controlling the pressure of an air compressor to be 0.1-0.3 MPa, dripping the polyoxyethylene crystallization solution prepared in the step (1) on the mica sheet, and spreading the polyoxyethylene crystallization solution on the mica sheet to form a thin layer by high-speed rotation to obtain a water-assisted polyoxyethylene single crystal film;
(3) drying of the water-assisted polyethylene oxide single crystal film: drying the water-assisted polyethylene oxide single crystal film prepared in the step (2) to obtain a finished water-assisted polyethylene oxide single crystal film;
the solvent of the polyethylene oxide aqueous solution described in the step (1) is preferably ultrapure water;
the concentration of the polyoxyethylene aqueous solution in the step (1) is preferably 0.01-10 wt%;
the method for preparing the polyethylene oxide aqueous solution described in the step (1) is preferably:
mixing polyoxyethylene and water at a heating temperature of 40-70 ℃, and stirring at a constant temperature until the polyoxyethylene is completely dissolved; the constant-temperature stirring time is preferably 0.5-12 h;
the high-speed rotation in the step (2) preferably comprises an acceleration stage, a constant speed stage and a deceleration stage; wherein:
and (3) an acceleration stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the acceleration time is 5-30 s;
a uniform speed stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the uniform speed time is 5-30 s;
and (3) a deceleration stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the deceleration time is 5-30 s;
the drying condition in the step (3) is preferably drying for 6-48 h at 25-80 ℃;
the drying in the step (3) can be carried out in a vacuum drying oven;
for a better illustration of the invention, the applicant has exemplified the following examples.
Example 1
(1) Preparation of polyoxyethylene crystallization solution: mixing polyoxyethylene and ultrapure water at a heating temperature of 60 ℃, and stirring at a constant temperature for 2 hours until the polyoxyethylene is completely dissolved to obtain a polyoxyethylene aqueous solution with a concentration of 0.1 wt%; then putting the polyoxyethylene aqueous solution into a constant-temperature water tank which is cooled to 5 ℃ in advance for 3h, then increasing the temperature to 52 ℃ at the heating rate of 250 ℃/h, staying for 2h to form stable seed crystals, and finally continuously crystallizing for 12h in the constant-temperature water tank at 52 ℃ to obtain a polyoxyethylene crystallization solution;
(2) preparation of water-assisted polyethylene oxide single crystal film: opening a cover plate above the spin coater for spin coating, placing the mica sheet in the middle of a tray, controlling the pressure of an air compressor to be 0.1MPa, dripping the polyoxyethylene crystallization solution prepared in the step (1) on the mica sheet, and spreading the solution on the mica sheet to form a thin layer by high-speed rotation, wherein the high-speed rotation comprises three stages of an acceleration stage, a uniform speed stage and a deceleration stage: the rotating speed of the spin coater for spin coating is 150rpm in the acceleration stage, the acceleration time is 10s, the rotating speed of the spin coater for spin coating is 100rpm in the uniform speed stage, the uniform speed time is 30s, the rotating speed of the spin coater for spin coating is 150rpm in the deceleration stage, and the deceleration time is 10s, so that the water-assisted polyethylene oxide single crystal film is obtained;
(3) drying of the water-assisted polyethylene oxide single crystal film: and (3) transferring the water-assisted polyethylene oxide single crystal film prepared in the step (2) to a vacuum drying oven at 45 ℃ for drying for 12h to obtain a finished water-assisted polyethylene oxide single crystal film (the thickness of the film is 10-50 nm).
Example 2
(1) Preparation of polyoxyethylene crystallization solution: mixing polyoxyethylene and ultrapure water at a heating temperature of 50 ℃, and stirring at a constant temperature for 2 hours until the polyoxyethylene is completely dissolved to obtain a polyoxyethylene aqueous solution with a concentration of 0.5 wt%; then putting the polyoxyethylene aqueous solution into a constant-temperature water tank which is cooled to 0 ℃ in advance for 2h, then increasing the temperature to 38 ℃ at the heating rate of 50 ℃/h, staying for 2h to form stable seed crystals, and finally continuously crystallizing for 24h in the constant-temperature water tank at 38 ℃ to obtain a polyoxyethylene crystallization solution;
(2) preparation of water-assisted polyethylene oxide single crystal film: opening a cover plate above the spin coater for spin coating, placing the mica sheet in the middle of a tray, controlling the pressure of an air compressor to be 0.2MPa, dripping the polyoxyethylene crystallization solution prepared in the step (1) on the mica sheet, and spreading the solution on the mica sheet to form a thin layer by high-speed rotation, wherein the high-speed rotation comprises three stages of an acceleration stage, a uniform speed stage and a deceleration stage: the rotating speed of the spin coater for spin coating is 200rpm in the acceleration stage, the acceleration time is 10s, the rotating speed of the spin coater for spin coating is 100rpm in the uniform speed stage, the uniform speed time is 30s, the rotating speed of the spin coater for spin coating is 200rpm in the deceleration stage, and the deceleration time is 10s, so that the water-assisted polyethylene oxide single crystal film is obtained;
(3) drying of the water-assisted polyethylene oxide single crystal film: and (3) transferring the water-assisted polyethylene oxide single crystal film prepared in the step (2) to a vacuum drying oven at 50 ℃ for drying for 12h to obtain a finished water-assisted polyethylene oxide single crystal film (the thickness of the film is 5-20 nm).
Example 3
(1) Preparation of polyoxyethylene crystallization solution: mixing polyoxyethylene and ultrapure water at a heating temperature of 60 ℃, and stirring at a constant temperature for 2 hours until the polyoxyethylene is completely dissolved to obtain a polyoxyethylene aqueous solution with a concentration of 2.0 wt%; then putting the polyoxyethylene aqueous solution into a constant-temperature water tank which is cooled to 5 ℃ in advance for 3h, then increasing the temperature to 47 ℃ at the heating rate of 120 ℃/h, staying for 2h to form stable seed crystals, and finally crystallizing for 12h in a constant-temperature water tank at 38 ℃ to obtain a polyoxyethylene crystallization solution;
(2) preparation of water-assisted polyethylene oxide single crystal film: opening a cover plate above the spin coater for spin coating, placing the mica sheet in the middle of a tray, controlling the pressure of an air compressor to be 0.2MPa, dripping the polyoxyethylene crystallization solution prepared in the step (1) on the mica sheet, and spreading the solution on the mica sheet to form a thin layer by high-speed rotation, wherein the high-speed rotation comprises three stages of an acceleration stage, a uniform speed stage and a deceleration stage: the rotating speed of the spin coater for spin coating is 300rpm in the acceleration stage, the acceleration time is 10s, the rotating speed of the spin coater for spin coating is 200rpm in the uniform speed stage, the uniform speed time is 30s, the rotating speed of the spin coater for spin coating is 300rpm in the deceleration stage, and the deceleration time is 10s, so that the water-assisted polyethylene oxide single crystal film is obtained;
(3) drying of the water-assisted polyethylene oxide single crystal film: and (3) transferring the water-assisted polyethylene oxide single crystal film prepared in the step (2) to a vacuum drying oven at 25 ℃ for drying for 12h to obtain a finished water-assisted polyethylene oxide single crystal film (the thickness of the film is 10-40 nm).
Effects of the embodiment
In order to verify the effect of the water-assisted polyethylene oxide single crystal thin film prepared by the present invention, the performance of the water-assisted polyethylene oxide single crystal thin film obtained in each of the above examples was measured, and the measurement results are summarized as follows:
the thickness of the single crystal is 1-200 nm, the width is 0.1-100 μm, and the length-width ratio is 0.01-200, wherein the pictures of the polyoxyethylene single crystal in the water-assisted polyoxyethylene single crystal film prepared in the example 1 are shown in figures 1 and 2.
In conclusion, the invention adopts polyoxyethylene as raw material and ultrapure water as solvent to prepare polyoxyethylene solution; spin-coating on the substrate by a spin coater to form a polyethylene oxide single crystal film; the method has the characteristics of simple operation, obvious effect, no toxicity of the solvent, slow crystal growth rate, capability of observing the crystal growth process, real-time property, ecological friendliness, greenness, no toxicity, good biocompatibility, high research value and application prospect. Therefore, the research on the crystallization behavior of the polyoxyethylene monocrystal deepens the theoretical research on the crystallization property of the high polymer material, provides good exploration and theoretical basis for modification and derivation of the high polymer material, regulation and control of the micro-nano structure of the high polymer material and application of the composite material, and has great significance for commercial application of the high polymer material such as polyoxyethylene and the like.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. A preparation method of a water-assisted polyethylene oxide single crystal film is characterized by comprising the following steps:
(1) preparation of polyoxyethylene crystallization solution: preparing a polyoxyethylene aqueous solution at the temperature of 40-70 ℃, then placing the polyoxyethylene aqueous solution in a constant-temperature water bath at the temperature of 0-12 ℃ for 0.5-12 h, then heating the system to 25-52 ℃ at the heating rate of 5-500 ℃/h, staying for 0.5-3 h to form stable seed crystals, and finally continuously crystallizing in the constant-temperature water bath at the temperature of 25-52 ℃ for 12-24 h to obtain a polyoxyethylene crystallization solution;
(2) preparation of water-assisted polyethylene oxide single crystal film: opening a cover plate above the spin coater for spin coating, placing the mica sheet in the right middle of the tray, controlling the pressure of an air compressor to be 0.1-0.3 MPa, dripping the polyoxyethylene crystallization solution prepared in the step (1) on the mica sheet, and spreading the polyoxyethylene crystallization solution on the mica sheet to form a thin layer by high-speed rotation to obtain a water-assisted polyoxyethylene single crystal film;
(3) drying of the water-assisted polyethylene oxide single crystal film: and (3) drying the water-assisted polyethylene oxide single crystal film prepared in the step (2) to obtain a finished water-assisted polyethylene oxide single crystal film.
2. The method for producing a water-assisted polyethylene oxide single crystal thin film according to claim 1, characterized in that:
the solvent of the polyoxyethylene aqueous solution in the step (1) is ultrapure water.
3. The method for producing a water-assisted polyethylene oxide single crystal thin film according to claim 1, characterized in that:
the concentration of the polyoxyethylene aqueous solution in the step (1) is 0.01-10 wt%.
4. The method for producing a water-assisted polyethylene oxide single crystal thin film according to claim 1, characterized in that:
the preparation method of the polyoxyethylene aqueous solution in the step (1) comprises the following steps:
mixing polyoxyethylene and water at a heating temperature of 40-70 ℃, and standing at a constant temperature until the polyoxyethylene is completely dissolved; the constant-temperature retention time is 0.5-12 h.
5. The method for producing a water-assisted polyethylene oxide single crystal thin film according to claim 1, characterized in that:
the high-speed rotation in the step (2) preferably comprises an acceleration stage, a constant speed stage and a deceleration stage; wherein:
and (3) an acceleration stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the acceleration time is 5-30 s;
a uniform speed stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the uniform speed time is 5-30 s;
and (3) a deceleration stage: the rotating speed of the spin coater for spin coating is 100-1000 rpm, and the deceleration time is 5-30 s.
6. The method for producing a water-assisted polyethylene oxide single crystal thin film according to claim 1, characterized in that:
the drying condition in the step (3) is drying for 6-48 h at 25-80 ℃.
7. The method for producing a water-assisted polyethylene oxide single crystal thin film according to claim 1, characterized in that:
and (4) drying in the step (3) in a vacuum drying box.
8. A water-assisted polyethylene oxide single crystal thin film characterized by being produced by the production method according to any one of claims 1 to 7.
9. The use of the water-assisted polyethylene oxide single crystal thin film according to claim 8 in the field of polymer materials.
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| CN114318546A (en) * | 2021-12-13 | 2022-04-12 | 国科广化精细化工孵化器(南雄)有限公司 | Epitaxial growth method of organic crystal film by utilizing micro-fluidic technology, organic crystal film and application |
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Non-Patent Citations (3)
| Title |
|---|
| 曹国华等著: "《有机电致发光器件及载流子输运特性》", 30 November 2018, 吉林大学出版社 * |
| 杨鹏: ""聚合物单晶力致解链的单分子力谱研究"", 《中国博士学位论文数据库 工程科技I辑》 * |
| 蔡林编著: "《摄影大百科辞典》", 30 September 1994, 四川科学技术出版社 * |
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| CN114318546A (en) * | 2021-12-13 | 2022-04-12 | 国科广化精细化工孵化器(南雄)有限公司 | Epitaxial growth method of organic crystal film by utilizing micro-fluidic technology, organic crystal film and application |
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