CN102924730A - Method for preparing phenylethylene magnetic double-sided particles - Google Patents
Method for preparing phenylethylene magnetic double-sided particles Download PDFInfo
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- CN102924730A CN102924730A CN2012104033363A CN201210403336A CN102924730A CN 102924730 A CN102924730 A CN 102924730A CN 2012104033363 A CN2012104033363 A CN 2012104033363A CN 201210403336 A CN201210403336 A CN 201210403336A CN 102924730 A CN102924730 A CN 102924730A
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Abstract
The invention relates to a method for preparing phenylethylene magnetic double-sided particles. Based on the conventional double-sided particle preparing method, the method prepares magnetic double-sided particles by phase separation and by introducing magnetic nano particles to magnetize double-sided particles. The magnetic double-sided particles can be recycled under the control of an external magnetic field, and the treatment of the particles can be directed for some specific use. The magnetic double-sided particles have high-value application in directed-delivery of surfactant and medicine and in other fields.
Description
Technical field
The preparation method of a kind of organic/inorganic magnetic double-face of the present invention particle, namely in the presence of the magnetic nano-particle of surperficial oleophylic by solvent evaporation method so that two kinds of polymkeric substance be separated, thereby obtain organic/inorganic magnetic double-face particle.Be specifically related to a kind of preparation method of vinylbenzene magnetic double-face particle.
Background technology
Two-sided particle refers to that two hemisphere surface of particle have the particulate of different compositions or character.The preparation method of the two-sided particle that up to the present, has developed mainly contains Pickering emulsion method, phase separation method, plane Semi-shielded method etc.Two-sided particle has a wide range of applications in fields such as sensor, electronic industry, sun power conversion, tensio-active agent, molecular recognition and self-assembly, Anistropic imaging probe, controlled pore-creating, drug conveying because its unique unsymmetrical structure makes it, has obtained the extensive concern of researcher.Because two-sided particle two hemispheres has different character, as tensio-active agent, can give two hemispheres and make it have the effects such as emulsification, solubilising with hydrophilic, hydrophobic property; Be used for drug conveying, can make its a hemisphere bound drug molecule, and another hemisphere sticks and connects molecule and be combined with target cells.But two-sided particle is difficult to can reclaim to reach recycling in the situation mostly, the pollution that causes to reduce impurity and Yin Qi.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of preparation method of vinylbenzene magnetic double-face particle.
Technical scheme
A kind of preparation method of vinylbenzene magnetic double-face particle is characterized in that step is as follows:
Step 1: the preparation massfraction is 0.1 ~ 1% water phase surfactant mixture, is made into water;
Step 2: be that 1 ﹕, 0.5 ~ 2 ﹕ 0.1 ~ 0.5 dissolves in mass ratio with the magnetic nano-particle of polymethacrylate polymkeric substance, polystyrene and surperficial oleophylic, then be dispersed in the organic solvent, ultrasonic it is mixed, be made into oil phase; Wherein the massfraction of the magnetic nano-particle of polymethacrylate polymkeric substance, polystyrene and surperficial oleophylic in solution is 0.2% ~ 10%;
Step 3: the oil phase in the step 2 is mixed with the water of step 1, with the mixed solution 4 ~ 12h that under 30 ℃ ~ 50 ℃, the rotating speed of 300 ~ 1000r/min, volatilizees; Wherein the mass ratio of oil phase and water is 1:3 ~ 1:7;
Step 4: resulting product through washing, drying, is got vinylbenzene magnetic double-face particle.
Described tensio-active agent is sodium laurylsulfonate SDS, Sodium dodecylbenzene sulfonate SDBS, OP-10 or span-60.
Described polymethacrylate polymkeric substance is polymethylmethacrylate, poly-n-butyl methacrylate or poly (glycidyl methacrylate), and its molecular weight is 5000 ~ 100000.
The molecular weight of described polystyrene is 5000 ~ 100000.
The magnetic nano-particle of described surperficial oleophylic is the Fe of surperficial oleophylic
3O
4, Fe
2O
3, one or more any than mixing in Mn ferrite or the Zn ferrite.
Described organic solvent can be methylene dichloride, acetone, methylal〔Su〕, chloroform or tetrahydrofuran (THF).
Beneficial effect
The preparation method of a kind of vinylbenzene magnetic double-face particle that the present invention proposes on the preparation method's who has two-sided particle now basis, uses phase separation method and prepares a kind of magnetic double-face particle by introducing magnetic nano-particle.Give magnetic with two-sided particle, namely prepare the magnetic double-face particle, can carry out recycling by the control of externally-applied magnetic field, all right directional process is so that treating processes has more purpose.This magnetic double-face particle has important using value in fields such as tensio-active agent, the directed conveyings of medicine.
Description of drawings
Fig. 1: the preparation flow figure of magnetic double-face particle;
Fig. 2: the SEM photo of the magnetic double-face particle of the present invention's preparation;
Fig. 3: the magnetic double-face particle diameter distribution plan of the present invention's preparation.
Embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
Example 1: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.3gSDS, 100mL distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 1.0g polymethacrylate, 0.5g polystyrene and 0.1g surface oleophylic
3O
4Nanoparticle places beaker, adds the 20g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 4h volatilizees under 30 ℃, 500r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Example 2: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.4gSDS, 100ml distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 0.5g polymethacrylate, 0.5g polystyrene and 0.1g surface oleophylic
3O
4Nanoparticle places beaker, adds the 20g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 6h volatilizees under 35 ℃, 700r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Example 3: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.5gSDS, 200ml distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 1.0g polymethacrylate, 1.0g polystyrene and 0.2g surface oleophylic
3O
4Nanoparticle places beaker, adds the 40g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 4h volatilizees under 30 ℃, 500r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Example 4: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.6gSDS, 200ml distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 0.5g polymethacrylate, 1.0g polystyrene and 0.2g surface oleophylic
3O
4Nanoparticle places beaker, adds the 40g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 6h volatilizees under 35 ℃, 700r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Example 5: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.6gSDS, 300ml distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 1.5g polymethacrylate, 1.5g polystyrene and 0.3g surface oleophylic
3O
4Nanoparticle places beaker, adds the 50g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 6h volatilizees under 35 ℃, 500r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Example 6: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.7gSDS, 300ml distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 2.0g polymethacrylate, 1.5g polystyrene and 0.3g surface oleophylic
3O
4Nanoparticle places beaker, adds the 60g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 7h volatilizees under 40 ℃, 700r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Example 7: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.8gSDS, 300ml distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 1.5g polymethacrylate, 2.0g polystyrene and 0.3g surface oleophylic
3O
4Nanoparticle places beaker, adds the 70g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 8h volatilizees under 45 ℃, 800r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Example 8: the preparation of magnetic double-face particle
Under the room temperature, in there-necked flask, add 0.9gSDS, 300ml distilled water, be mixed with water phase surfactant mixture; Take by weighing the Fe of 2.0g polymethacrylate, 2.0g polystyrene and 0.3g surface oleophylic
3O
4Nanoparticle places beaker, adds the 80g methylene dichloride and is made into the homogeneous oil phase; Above-mentioned oil phase is joined in the water phase surfactant mixture, and 10h volatilizees under 50 ℃, 1000r/min rotating speed; At last with resulting product through the washing, drying, namely get the magnetic double-face particle.
Claims (6)
1. the preparation method of a vinylbenzene magnetic double-face particle is characterized in that step is as follows:
Step 1: the preparation massfraction is 0.1 ~ 1% water phase surfactant mixture, is made into water;
Step 2: be that 1 ﹕, 0.5 ~ 2 ﹕ 0.1 ~ 0.5 dissolves in mass ratio with the magnetic nano-particle of polymethacrylate polymkeric substance, polystyrene and surperficial oleophylic, then be dispersed in the organic solvent, ultrasonic it is mixed, be made into oil phase; Wherein the massfraction of the magnetic nano-particle of polymethacrylate polymkeric substance, polystyrene and surperficial oleophylic in solution is 0.2% ~ 10%;
Step 3: the oil phase in the step 2 is mixed with the water of step 1, with the mixed solution 4 ~ 12h that under 30 ℃ ~ 50 ℃, the rotating speed of 300 ~ 1000r/min, volatilizees; Wherein the mass ratio of oil phase and water is 1:3 ~ 1:7;
Step 4: resulting product through washing, drying, is got vinylbenzene magnetic double-face particle.
2. the preparation method of described vinylbenzene magnetic double-face particle according to claim 1, it is characterized in that: described tensio-active agent is sodium laurylsulfonate SDS, Sodium dodecylbenzene sulfonate SDBS, OP-10 or span-60.
3. the preparation method of described vinylbenzene magnetic double-face particle according to claim 1, it is characterized in that: described polymethacrylate polymkeric substance is polymethylmethacrylate, poly-n-butyl methacrylate or poly (glycidyl methacrylate), and its molecular weight is 5000 ~ 100000.
4. the preparation method of described vinylbenzene magnetic double-face particle according to claim 1, it is characterized in that: the molecular weight of described polystyrene is 5000 ~ 100000.
5. the preparation method of described vinylbenzene magnetic double-face particle according to claim 1, it is characterized in that: the magnetic nano-particle of described surperficial oleophylic is the Fe of surperficial oleophylic
3O
4, Fe
2O
3, one or more any than mixing in Mn ferrite or the Zn ferrite.
6. the preparation method of described vinylbenzene magnetic double-face particle according to claim 1, it is characterized in that: described organic solvent can be methylene dichloride, acetone, methylal〔Su〕, chloroform or tetrahydrofuran (THF).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554389A (en) * | 2013-09-27 | 2014-02-05 | 华侨大学 | Preparation method of magnetic polymeric microsphere used for immobilized iron reducing bacteria |
| CN105294902A (en) * | 2015-07-24 | 2016-02-03 | 扬州大学 | Method for preparing double particles by double emulsion template method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600776A (en) * | 2012-03-15 | 2012-07-25 | 东华大学 | Preparation method for magnetic microcapsule |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600776A (en) * | 2012-03-15 | 2012-07-25 | 东华大学 | Preparation method for magnetic microcapsule |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554389A (en) * | 2013-09-27 | 2014-02-05 | 华侨大学 | Preparation method of magnetic polymeric microsphere used for immobilized iron reducing bacteria |
| CN105294902A (en) * | 2015-07-24 | 2016-02-03 | 扬州大学 | Method for preparing double particles by double emulsion template method |
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Application publication date: 20130213 |