CN108854999A - A kind of Rhodanine derivates oligomer and the preparation method and application thereof - Google Patents
A kind of Rhodanine derivates oligomer and the preparation method and application thereof Download PDFInfo
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Abstract
The present invention provides a kind of preparation methods of Rhodanine derivates oligomer, under conditions of nitrogen or inert gas shielding, Rhodanine derivates monomer, photoinitiator, alcohols solvent and water are mixed, raw mixture is obtained；The Rhodanine derivates monomer is 3- allyl rhodanine or 3- cyclobutenyl rhodanine；Then, the atmosphere for maintaining nitrogen or inert gas shielding carries out polymerization reaction, obtains Rhodanine derivates oligomer under ultraviolet light irradiation condition.The Rhodanine derivates oligomer that preparation method provided by the present invention obtains is in Ag+、Co2+、Ni2+、Pb2+And Cu2+Concentration be in the mixed solution of 300mg/L, to Ag+With Selective adsorption, to Ag in mixed solution+Adsorbance up to 263.5mg/g, and be only 17.5mg/g to the adsorbance maximum of other heavy metal ion, there is selective absorption Ag+While, adsorbance also with higher.
Description
Technical field
The present invention relates to adsorbent material technical fields more particularly to a kind of Rhodanine derivates oligomer and preparation method thereof
With application.
Background technique
Silver is a kind of argenteous transition metal.It has good ductility, has highest lead in all metals
Electrical property and conductivity of heat.Silver is commonly used to the high physical apparatus element of production sensitivity, and electronic apparatus is the maximum industry of silver consuming amount,
Its use is divided into contact material, composite material and welding material.In the compound of silver, photosensitive silve halide material is silver consuming amount
One of maximum field, the current maximum several photosensitive materials of production and selling amount are rollfilms, printing paper, x-ray film, glimmering
Optical information recording piece, electron micrograph film and lithographic film etc..In addition, two masters of the silver in terms of chemical material
It to apply and be：First is that silver catalyst, is such as widely used in redox and polymerization reaction, for handling the industrial waste gas of sulfur compound
Deng；Second is that electronics finishing industrial preparation, such as silver paste, silver potassium cyanide.Due to being widely used containing silver products, these products are being made
It is standby, use and discard after can generate a large amount of argentiferous waste, can not recycle, cause a large amount of wasting of resources.And silver ion into
It but will be done harm to huamn body when entering in environment.Silver ion can react the protein for making human body with hemoglobin and various enzymes become
Property, it is more than that 0.8g will cause silver-colored spot blue to precipitate on the skin into intracorporal silver ion.Since silver ion has very by force
Oxidisability, so can also cause the symptoms such as internal organs oedema into the intracorporal silver ion of people, causing death when serious.Human body
Without effectively arranging silver-colored mechanism, so once intake silver ion is just mainly accumulated in bone and liver.Silver ion is as heavy metal
The removal recycling of ion and be noble metal, selectivity is of great significance and economic value.
Ag is recycled from waste water+Conventional method include precipitating, electrolysis, ion exchange, UF membrane, absorption.In above-mentioned side
In method, adsorbs since easy to operate, low energy consumption, high-efficient, be a kind of technology of great development prospect.Many has been developed at present
For separating and recycling Ag+Adsorbent, including modified silica nanoparticle, active carbon, waste coffee dregs, chelating resin,
Ion imprinted polymer etc..For ion blotting compound, although selectivity with higher, it is typically due to synthesis step
It is rapid it is cumbersome, effective site is less, so adsorbance is not generally high, although remaining material such as active carbon, chitosan etc. have compared with
High adsorbance, but due to there is no selectivity, there is absorption to most of metal ion in multi-ion system waste water, therefore simultaneously
It may not apply to specific aim recycling silver.
Summary of the invention
The purpose of the present invention is to provide a kind of Rhodanine derivates oligomer and the preparation method and application thereof, institute of the present invention
The Rhodanine derivates oligomer of offer can be realized to Ag+Selective absorption, while adsorbance with higher.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical scheme：
A kind of preparation method of Rhodanine derivates oligomer, includes the following steps：
(1) under conditions of nitrogen or inert gas shielding, by Rhodanine derivates monomer, photoinitiator, alcohols solvent
It is mixed with water, obtains raw mixture；The Rhodanine derivates monomer is 3- allyl rhodanine or 3- cyclobutenyl rhodanine；
(2) atmosphere for maintaining nitrogen or inert gas shielding carries out polymerization reaction, obtains under conditions of ultraviolet light irradiation
To Rhodanine derivates oligomer.
Preferably, the mass ratio of the Rhodanine derivates monomer and photoinitiator is 100:1~15.
Preferably, the photoinitiator is 2- hydroxyl -4 '-(2- hydroxy ethoxy) -2- methyl phenyl ketone, 1- hydroxy-cyclohexyl
Phenyl ketone or diphenyl-(2,4,6- trimethylbenzoyl) oxygen phosphorus.
Preferably, the alcohols solvent is at least one of methanol and ethyl alcohol.
Preferably, the volume ratio of the alcohols solvent and water is 1:0.5~2.
Preferably, the wavelength of the ultraviolet light is 340~365nm.
Preferably, the ultraviolet light vertical irradiation raw mixture, the light source of the ultraviolet light and the raw mixture
Distance be 4~8cm.
Preferably, the time of the polymerization reaction is 3~5h.
The present invention also provides a kind of Rhodanine derivates oligomer, the preparation of the preparation method as described in above-mentioned technical proposal
It obtains.
The present invention also provides the Rhodanine derivates oligomer described in above-mentioned technical proposal in Ag+Purposes in absorption.
The present invention provides a kind of preparation methods of Rhodanine derivates oligomer, first in nitrogen or inert gas shielding
Under conditions of, Rhodanine derivates monomer, photoinitiator, alcohols solvent and water are mixed, raw mixture is obtained；The Luo Dan
Peaceful derivatives monomer is 3- allyl rhodanine or 3- cyclobutenyl rhodanine；Then, the atmosphere of nitrogen or inert gas shielding is maintained
It encloses, under conditions of ultraviolet light irradiation, carries out polymerization reaction, obtain Rhodanine derivates oligomer.It prepares through the above scheme
Containing a large amount of in obtained Rhodanine derivates oligomerFunctional group, optionally with Ag+It is formed steady
Fixed chelate, to play to Ag+Selective absorption effect.The experimental results showed that preparation method provided by the present invention
Obtained Rhodanine derivates oligomer is in Ag+、Co2+、Ni2+、Pb2+And Cu2+Concentration be in the mixed solution of 300mg/L,
To Ag+With Selective adsorption, and to Ag in mixed solution+Adsorbance up to 263.57mg/g, and to other heavy metals from
The adsorbance maximum of son is only 17.5mg/g, that is, has selective absorption Ag+While, adsorbance also with higher.
Detailed description of the invention
The scanning electron microscope (SEM) photograph of 1 gained 3- allyl rhodanine auto polymerization product of Fig. 1 embodiment.
Specific embodiment
The present invention provides a kind of preparation methods of Rhodanine derivates oligomer, include the following steps：
(1) under conditions of nitrogen or inert gas shielding, by Rhodanine derivates monomer, photoinitiator, alcohols solvent
It is mixed with water, obtains raw mixture；The Rhodanine derivates monomer is 3- allyl rhodanine or 3- cyclobutenyl rhodanine；
(2) atmosphere for maintaining nitrogen or inert gas shielding carries out polymerization reaction, obtains under conditions of ultraviolet light irradiation
To Rhodanine derivates oligomer.
The present invention is molten by Rhodanine derivates monomer, photoinitiator, alcohols under conditions of nitrogen or inert gas shielding
Agent and water mixing, obtain raw mixture.
The present invention is not special to the order by merging of the Rhodanine derivates monomer, photoinitiator, alcohols solvent and water
It limits, can be any order by merging.In embodiments of the present invention, the order by merging of raw material is preferably successively into alcohols solvent
Rhodanine derivates monomer, photoinitiator and water is added.
Alcohols solvent is preferably added in the present invention into container, then successively carries out vacuumize process and is passed through nitrogen or inertia
Gas obtains the condition of nitrogen or inert gas shielding.
In the present invention, the pressure of the vacuumize process preferably -0.06~-0.1MPa, more preferably -0.07~-
0.08MPa.In the present invention, the vacuumize process can extract the gas in container and solvent out, be then charged with nitrogen or
After inert gas, it is ensured that solvent is oxygen-free environment, and subsequent raw material is avoided to be oxidized.
In the present invention, the nitrogen or the pressure of inert gas shielding are preferably normal pressure.
In the present invention, the alcohols solvent is preferably at least one of methanol and ethyl alcohol.
After obtaining nitrogen or inert gas shielding condition, it is derivative that the present invention preferably sequentially adds rhodanine into alcohols solvent
Object monomer, photoinitiator and water, obtain raw mixture.
In the present invention, the Rhodanine derivates monomer is 3- allyl rhodanine or 3- cyclobutenyl rhodanine.
In the present invention, the mass ratio of the Rhodanine derivates monomer and photoinitiator is preferably 100:1~15, more
Preferably 100:5~10.
In the present invention, the photoinitiator is preferably 2- hydroxyl -4 '-(2- hydroxy ethoxy) -2- methyl phenyl ketone (i.e. light
Initiator 2959), 1- hydroxycyclohexyl phenyl ketone (i.e. photoinitiator 184) or diphenyl-(2,4,6- trimethylbenzoyl)
Oxygen phosphorus (i.e. TPO).
In the present invention, the water is preferably deionized water.In the present invention, the addition of the water can change solution pole
Property, the product for generating subsequent polymerization process is precipitated as much as possible, occurs to avoid the phenomenon that layering aggregation, while can be significantly
Improve yield.
In the present invention, the volume ratio of the alcohols solvent and water is preferably 1:0.5~2, more preferably 1:1~1.5.
In the present invention, the addition of the photoinitiator and water independently carries out under the conditions of being protected from light.In the present invention, it keeps away
Striation part is conducive to avoid the decomposition of photoinitiator.
In the present invention, any one object of the present invention preferably in the Rhodanine derivates monomer, photoinitiator and water
After matter is added, vacuumize process and logical nitrogen or inert gas are successively carried out, is then stirred evenly.In the present invention, add every time
The operation for entering to carry out after material vacuumize process and logical nitrogen or inert gas can remove the oxygen that charging process introduces system
It removes, guarantees that reaction is in anaerobic state.
In the present invention, the operation of the vacuumize process after charging and logical nitrogen or inert gas is molten with alcohols is added every time
The vacuumize process carried out when agent is identical with the operation of logical nitrogen or inert gas, and details are not described herein.
The present invention is not particularly limited the revolving speed of the stirring and time, can stir evenly system.
After obtaining raw mixture, the present invention maintains the atmosphere of nitrogen or inert gas shielding, in the item of ultraviolet light irradiation
Under part, polymerization reaction is carried out, Rhodanine derivates oligomer is obtained.
In the present invention, the wavelength of the ultraviolet light is preferably 340~365nm, more preferably 350~355nm.
In the present invention, the ultraviolet light preferred vertical irradiates raw mixture, the light source of the ultraviolet light and the original
The distance for expecting mixture is 4~8cm.In the present invention, above-mentioned vertical irradiation and suitable distance can make solution irradiated area
It is bigger, be conducive to reaction and carry out.
In the present invention, the time of the polymerization reaction is preferably 3~5h, more preferably 3.5~4.5h.
The present invention is not particularly limited the temperature of the polymerization reaction, in room temperature.
After the completion of polymerization reaction, mixture obtained by polymerization reaction is preferably successively filtered, washed and dried drying by the present invention, is obtained
To Rhodanine derivates oligomer.
In the present invention, the washing preferably successively uses methanol and water washing；The number of the methanol and water washing
It is independently preferably 3~5 times；The present invention is not particularly limited the dosage of the first alcohol and water, and it is anti-can to submerge polymerization respectively
Answer products therefrom.
The present invention is not particularly limited the mode of the washing, using conventional mode of washing.Of the invention real
It applies in example, the washing preferably mixes washer solvent with solid product to be washed, and stirs 5~15min (time), so
After filter, complete once washing.
The present invention is not particularly limited the mode of the drying, can obtain the product of constant weight.Of the invention real
It applies in example, the drying is preferably forced air drying；The temperature of the drying is preferably 40~50 DEG C；The time of the drying is preferred
For 2~2.5h.
The present invention also provides a kind of Rhodanine derivates oligomer, the preparation of the preparation method as described in above-mentioned technical proposal
It obtains.
In the present invention, the molecular weight of the Rhodanine derivates oligomer is preferably 1600~2000g/mol.
In the present invention, the Rhodanine derivates oligomer is preferably club, and the diameter of the club is preferably
500~700nm, the length of the club are preferably 50~100nm.
The present invention also provides the Rhodanine derivates oligomer described in above-mentioned technical proposal in Ag+Application in absorption.
In the present invention, the Rhodanine derivates oligomer is in Ag+Application in absorption preferably includes following steps：
Silver ion adsorbent material is mixed with waste water to be processed, with the concussion speed of 150~250rpm concussion absorption 5~
Then 8h is separated by solid-liquid separation, the water body that obtains that treated.
In the present invention, the ratio between the quality of the silver ion adsorbent material and the volume of waste water to be processed preferably 1g:0.8
~1.2L, more preferably 1g:1L.
In the present invention, the separation of solid and liquid is preferably centrifugated；The revolving speed of the centrifugation is preferably 6000~
9000rpm；The time of the centrifugation is preferably 3~5min.
Below with reference to embodiment to a kind of Rhodanine derivates oligomer provided by the invention and the preparation method and application thereof
It is described in detail, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
(1) at room temperature, 30mL methanol is added into 100mL quartz flask, after being evacuated to -0.08MPa, is passed through nitrogen
0.844g 3- allyl rhodanine is added under stirring and obtains 3- allyl rhodanine solution after dissolution completely for gas；
(2) 0.0844g is rapidly added into the 3- allyl rhodanine solution that the step (1) obtains under the conditions of being protected from light
Photoinitiator 2959, is evacuated to -0.08MPa, then passes to nitrogen, stirring 10~15min dissolution；
(3) 30mL deionization is slowly added in the mixed solution for being protected from light and obtaining under nitrogen protection to the step (2)
Water is evacuated to -0.08MPa, then passes to nitrogen, stirs evenly；
(4) ultraviolet lamp vertical irradiation flask is used, the ultraviolet wavelength of ultraviolet lamp transmitting is 354nm, ultraviolet lamp and solution
Vertical range keeps 5cm, mixed solution obtained by step (3) described in illumination, polymerization reaction 5h under sealing condition；
(5) mixed solution obtained by polymerization reaction is filtered, obtains solid product；Then solid product is successively used into methanol
It is respectively washed with water three times, each cleaning solvent volume is 20mL, and the time of each wash agitation is 5min；By the solid after washing
Product obtains 0.5568g 3- allyl rhodanine auto polymerization product, yield 65.97% in 40 DEG C of dry 2h.
Use GPC exclusion chromatography measure the molecular weight of 3- allyl rhodanine auto polymerization product obtained by the present embodiment for
1677.15g/mol。
3- allyl rhodanine auto polymerization product obtained by the present embodiment is characterized using scanning electron microscope, as a result such as Fig. 1
Shown, wherein Fig. 1 (b) is the enlarged drawing of Fig. 1 (a), and 3- allyl rhodanine auto polymerization product is rendered as rodlike as shown in Figure 1,
Through measuring, the average diameter of gained club is 630nm, and the average length of the club is 80nm.
Embodiment 2
(1) at room temperature, 30mL methanol is added into 100mL quartz flask, after being evacuated to -0.09MPa, is passed through nitrogen
0.844g 3- allyl rhodanine is added under stirring and obtains 3- allyl rhodanine solution after dissolution completely for gas；
(2) 0.0844g photoinitiator is rapidly added into (1) the 3- allyl rhodanine solution under the conditions of being protected from light
184, it is evacuated to -0.09MPa, then passes to nitrogen, stirring 10~15min dissolution；
(3) 30mL deionization is slowly added in the mixed solution for being protected from light and obtaining under nitrogen protection to the step (2)
Water is evacuated to -0.09MPa, then passes to nitrogen, stirs evenly；
(4) ultraviolet lamp vertical irradiation flask is used, the ultraviolet wavelength of ultraviolet lamp transmitting is 354nm, ultraviolet lamp and solution
Vertical range keeps 5cm, mixed solution obtained by step (3) described in illumination, polymerization reaction 5h under sealing condition；
(5) mixed solution obtained by polymerization reaction is filtered, obtains solid product；Then solid product is successively used into methanol
It is respectively washed with water three times, each cleaning solvent volume is 20mL, and the time of each wash agitation is 8min；By the solid after washing
Product obtains 0.5740g 3- allyl rhodanine auto polymerization product, yield 68.01% in 40 DEG C of dry 2h.
Use GPC exclusion chromatography measure the molecular weight of 3- allyl rhodanine auto polymerization product obtained by the present embodiment for
1935.5g/mol。
3- allyl rhodanine auto polymerization product obtained by the present embodiment is characterized using scanning electron microscope, is as a result similar to
Fig. 1, is rendered as rodlike, and through measuring, the average diameter of gained club is 550nm, and the average length of the club is 90nm.
Embodiment 3
(1) at room temperature, 30mL methanol is added into 100mL quartz flask, after being evacuated to -0.08MPa, is passed through nitrogen
0.940g 3- cyclobutenyl rhodanine is added under stirring and obtains 3- cyclobutenyl rhodanine solution after dissolution completely for gas；
(2) 0.094g photoinitiator is rapidly added into (1) the 3- cyclobutenyl rhodanine solution under the conditions of being protected from light
2959, it is evacuated to -0.08MPa, then passes to nitrogen, stirring 10~15min dissolution；
(3) 30mL deionization is slowly added in the mixed solution for being protected from light and obtaining under nitrogen protection to the step (2)
Water is evacuated to -0.08MPa, then passes to nitrogen, stirs evenly；
(4) use ultraviolet lamp vertical irradiation flask, ultraviolet lamp transmitting ultraviolet wavelength be 354nmnm, ultraviolet lamp with it is molten
Liquid vertical range keeps 5cm, mixed solution obtained by step (3) described in illumination, polymerization reaction 5h under sealing condition；
(5) mixed solution obtained by polymerization reaction is filtered, obtains solid product；Then solid product is successively used into methanol
It is respectively washed with water three times, each cleaning solvent volume is 20mL, and the time of each wash agitation is 10min；By consolidating after washing
Body product obtains 0.5832g 3- cyclobutenyl rhodanine auto polymerization product, yield 62.04% in 40 DEG C of dry 2h.
Use GPC exclusion chromatography measure the molecular weight of 3- cyclobutenyl rhodanine auto polymerization product obtained by the present embodiment for
2097.9g/mol。
3- cyclobutenyl rhodanine auto polymerization product obtained by the present embodiment is characterized using scanning electron microscope, is as a result similar to
Fig. 1, is rendered as rodlike, and through measuring, the average diameter of gained club is 680nm, and the average length of the club is 90nm.
Embodiment 4
(1) at room temperature, 30mL ethyl alcohol is added into 100mL quartz flask, after being evacuated to -0.01MPa, is passed through nitrogen
0.844g 3- allyl rhodanine is added under stirring and obtains 3- allyl rhodanine solution after dissolution completely for gas；
(2) 0.0844g photoinitiator is rapidly added into (1) the 3- allyl rhodanine solution under the conditions of being protected from light
184, it is evacuated to -0.01MPa, then passes to nitrogen, stirring 10~15min dissolution；
(3) 20mL deionization is slowly added in the mixed solution for being protected from light and obtaining under nitrogen protection to the step (2)
Water is evacuated to -0.01MPa, then passes to nitrogen, stirs evenly；
(4) use ultraviolet lamp vertical irradiation flask, ultraviolet lamp transmitting ultraviolet wavelength be 354nmnm, ultraviolet lamp with it is molten
Liquid vertical range keeps 5cm, mixed solution obtained by step (3) described in illumination, polymerization reaction 5h under sealing condition；
(5) mixed solution obtained by polymerization reaction is filtered, obtains solid product；Then solid product is successively used into methanol
It is respectively washed with water three times, each cleaning solvent volume is 20mL, and the time of each wash agitation is 10min；By consolidating after washing
Body product obtains 0.437g 3- allyl rhodanine auto polymerization product, yield 51.77% in 40 DEG C of dry 2h.
Use GPC exclusion chromatography measure the molecular weight of 3- allyl rhodanine auto polymerization product obtained by the present embodiment for
1783.9g/mol。
3- allyl rhodanine auto polymerization product obtained by the present embodiment is characterized using scanning electron microscope, is as a result similar to
Fig. 1, is rendered as rodlike, and through measuring, the average diameter of gained club is 630nm, and the average length of the club is 60nm.
Embodiment 5
Rhodanine derivates oligomer obtained by 20mg Examples 1 to 4 is respectively placed in 20mL mixture-metal solution, institute
State Ag in mixture-metal solution+、Co2+、Ni2+、Pb2+And Cu2+Concentration be 300mg/L, by gained system in isothermal vibration
In case, the concussion absorption 6h under 25 DEG C of conditions, the concussion speed of 180rpm；Then by centrifugation, by sieve after absorption heavy metal
Rhodanine derivative oligomer is isolated, and is surveyed the concentration of each ion in centrifugation gained clarified solution, is calculated rhodanine obtained by each embodiment
Derivative oligomer is to the adsorbance of each ion, and the results are shown in Table 1.
As shown in Table 1, Rhodanine derivates oligomer obtained by Examples 1 to 4 is to Ag+Adsorbance be 228~264mg/
G, and be only 17.5mg/g to the adsorbance maximum of other heavy metal ion, illustrate that Rhodanine derivates provided by the present invention are low
Polymers has selective absorption Ag+While, adsorbance also with higher.
The absorption property of 1 Examples 1 to 4 products therefrom of table
Embodiment 6
Silver ion adsorbent material obtained by 20mg Examples 1 to 4 is respectively placed in 20mL silver ion solution containing 400mg/L,
Using HNO3The pH value of solution is adjusted to 1；By gained system in constant temperature oscillation box, in 25 DEG C of conditions, the concussion of 180rpm
Concussion absorption 6h under speed；Then it is centrifuged 3~5min under the revolving speed of 6000~9000rpm, takes clarified solution, obtains that treated
Water body.
Using the concentration of silver ion in the flame atomic absorption method water body that measures that treated, and calculate silver ion adsorbent material
To the adsorbance of silver ion, the results are shown in Table 2.
Change pH value according to the method described above, silver ion solution handled, and measure silver ion adsorbent material to silver from
The absorption property of son, the results are shown in Table 2.
The results are shown in Table 2.The range that silver ion adsorbent material obtained by Examples 1 to 4 is 1~6 in pH value as shown in Table 2
It is interior, stronger absorption property is all had to silver ion.
The absorption property of silver ion adsorbent material measured by 2 Examples 1 to 4 of table
Embodiment 7
Silver ion adsorbent material obtained by 20mg Examples 1 to 4 is respectively placed in 20mL mixture-metal solution, it is described mixed
Close the Ag in heavy metal solution+、Co2+、Ni2+、Pb2+And Cu2+Concentration be 500mg/L, using HNO3Mixture-metal is molten
The pH value of liquid is adjusted to 3；By gained system in constant temperature oscillation box, shakes and inhale under 25 DEG C of conditions, the concussion speed of 180rmp
Attached 6h；Then it is centrifuged 3~5min under the revolving speed of 6000~9000rpm, takes clarified solution, the water body that obtains that treated.
Using the concentration of each ion in the flame atomic absorption method water body that measures that treated, and calculate silver ion adsorbent material
To the adsorbance of various ions, the results are shown in Table 3.As shown in Table 3, silver ion adsorbent material provided by the present invention is in pH value
Still to there is Selective adsorption to silver ion, and adsorbance is 289~343mg/g in 3 acidic environment.
The absorption property of silver ion adsorbent material measured by 3 Examples 1 to 4 of table
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of preparation method of Rhodanine derivates oligomer, includes the following steps：
(1) under conditions of nitrogen or inert gas shielding, by Rhodanine derivates monomer, photoinitiator, alcohols solvent and water
Mixing, obtains raw mixture；The Rhodanine derivates monomer is 3- allyl rhodanine or 3- cyclobutenyl rhodanine；
(2) atmosphere for maintaining nitrogen or inert gas shielding carries out polymerization reaction, obtains sieve under conditions of ultraviolet light irradiation
Rhodanine derivative oligomer.
2. preparation method according to claim 1, which is characterized in that the Rhodanine derivates monomer and photoinitiator
Mass ratio is 100:1~15.
3. preparation method according to claim 1 or 2, which is characterized in that the photoinitiator is 2- hydroxyl -4 '-(2- hydroxyl
Ethyoxyl) -2- methyl phenyl ketone, 1- hydroxycyclohexyl phenyl ketone or diphenyl-(2,4,6- trimethylbenzoyl) oxygen phosphorus.
4. preparation method according to claim 1, which is characterized in that the alcohols solvent be in methanol and ethyl alcohol at least
It is a kind of.
5. preparation method according to claim 1 or 4, which is characterized in that the volume ratio of the alcohols solvent and water is 1:
0.5~2.
6. preparation method according to claim 1, which is characterized in that the wavelength of the ultraviolet light is 340~365nm.
7. preparation method according to claim 1 or 6, which is characterized in that the ultraviolet light vertical irradiation raw mixture,
The light source of the ultraviolet light is 4~8cm at a distance from the raw mixture.
8. preparation method according to claim 1, which is characterized in that the time of the polymerization reaction is 3~5h.
9. a kind of Rhodanine derivates oligomer, is prepared by preparation method according to any one of claims 1 to 8.
10. Rhodanine derivates oligomer as claimed in claim 9 is in Ag+Application in absorption.
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| CN110407970A (en) * | 2019-07-19 | 2019-11-05 | 深圳市华星光电技术有限公司 | Preparation method, pure color material and the liquid crystal display device of dye stuff of rhodamine kinds monomeric oligomeric conjunction object |
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| CN106219658A (en) * | 2016-08-16 | 2016-12-14 | 南昌航空大学 | The classification removal of a kind of heavy metals in industrial wastewater and recovery method |
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| CN110407970A (en) * | 2019-07-19 | 2019-11-05 | 深圳市华星光电技术有限公司 | Preparation method, pure color material and the liquid crystal display device of dye stuff of rhodamine kinds monomeric oligomeric conjunction object |
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