CN106916587A - Oil-soluble carbon quantum dot (OCDs), PMMA@OOCDs, its preparation method and its application - Google Patents
Oil-soluble carbon quantum dot (OCDs), PMMA@OOCDs, its preparation method and its application Download PDFInfo
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Abstract
The present invention relates to a kind of oil-soluble carbon quantum dot (OCDs), OCDs@PMMA, its preparation method and its application.The particle diameter of the oil-soluble carbon quantum dot is：1 10 nm, its surface unsaturated carbon bond containing for：20%‑50%.The oil-soluble carbon quantum dot synthesized by the method has good dispersiveness and luminescent properties, can be as the anti-aging probe of PMMA, and there is remarkable optical transparence using the composite that oil-soluble carbon quantum dot and PMMA in-situ polymerizations are obtained (transmitance is up to more than 85%), and the anti-ultraviolet aging of PMMA is improved more than 10 times, this not only solves application of the carbon quantum dot present in prior art in all solid state illumination, and also solves the problem that PMMA can not be used widely because ageing properties are poor.
Description
Technical field
The present invention relates to a kind of oil-soluble carbon quantum dot (OCDs), OCDs@PMMA, its preparation method and its application.
Background technology
Polymer composite can overcome the disadvantages that some physically or chemically defects of polymer, extensively should be able in real life
With.It is conventionally synthesized path be add high concentration filling modifying agent to excavate its Potential performance.Recently, it has been reported that can be with
By adding the filler of low concentration, for example, novel nano structure filler, especially carbon nanomaterial class are used in polymerization,
Such as fullerene, CNT, Graphene and Nano diamond, make prepared polymer compared to original polymer in antioxygen
Change, heat endurance and electric conductivity aspect have more advantage.Aging phenomenon is prevalent in various polymer, and in actual applications
It is acknowledged as a kind of adverse factor.Therefore, people carried out many slow down the aging research of polymer.For example, Crouse etc.
A kind of compound for including 9 PDMs and fullerene unit is synthesized.Also many researchs also achieve remarkable effect, but realize
CNT being uniformly distributed in the polymer matrix is still the urgent task for preparing all polymer composites.Particularly
For optic polymer, uneven reunion may cause the composite to have poor optical transmittance.Therefore, send out
The polymer composite or new method that exhibition can reduce uneven reunion just become extremely urgent.Carbon quantum dot, as a kind of new
The emerging carbon-based material with super-small has been developed rapidly.Most of reports on carbon quantum dot, be substantially
Surface modification or the lipophilic group of doping.People by from top to bottom or bottom-to-top method synthesize have desired size,
The carbon quantum dot of pattern and physical and chemical performance.But general report is carried out only around its synthesis, and it is not developed further
Application in other respects, is especially slowing down the application of the aging aspect of polymer.
The content of the invention
An object of the present invention is to provide a kind of oil-soluble carbon quantum dot (OCDs), the oil-soluble carbon quantum dot
(OCDs) a kind of simple one-step method is employed, can be synthesized containing a large amount of unsaturated carbon bonds so as to reduce the oil-soluble carbon of reunion
Quantum dot (OCDs).
The second object of the present invention is to provide by physical bond and covalent bonding into obtaining with transparent fluorescent
Polymer OCDs@PMMA.
The third object of the present invention is the preparation method for providing polymer OCDs@PMMA.
The fourth object of the present invention is to provide the polymer as a kind of effective nanometer additive in reinforced PMMA
Application in the ability of composite anti-ultraviolet aging.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of oil-soluble carbon quantum dot, it is characterised in that the particle diameter of the oil-soluble carbon quantum dot is：1-10 nm, its surface insatiable hunger
Content with carbon key is：20%-50% .
A kind of polymer OCDs@PMMA, by polymethyl methacrylate and above-mentioned oil-soluble carbon quantum dot in-situ polymerization
Form, it is characterised in that described polymethyl methacrylate (PMMA) and the mass ratio of oil-soluble carbon quantum dot (OCDs) are：
20:1-60:1；The polymer is a kind of random copolymer, and the construction unit of carbon point and methacrylic acid value is on macromolecular chain
Random arrangement.
A kind of method for preparing above-mentioned polymer OCDs@PMMA, it is characterised in that the method is concretely comprised the following steps：
A methyl methacrylate and lauryl amine, octadecylamine or other Longer-chain surfactants containing amino are dissolved in toluene by ()
Or in other non-polar solvens, hydro-thermal reaction being carried out under air-proof condition, hydrothermal temperature scope is 140~260oC, during reaction
Between be 2~10 hours；Washed through water and ethanol, centrifugation takes organic layer, dialysed through methyl alcohol and separated, finally give oil-soluble
Carbon quantum dot；Described methyl methacrylate and lauryl amine, octadecylamine or other Longer-chain surfactants containing amino
Mol ratio is 4:1-2:3.
(b) at room temperature, by step (a) gained oil-soluble carbon quantum dot and methyl methacrylate, in initiator B PO or
AIBN effects are lower to be polymerized, and reaction condition is：In pre-polymerization process, temperature range is 60~100oC, the reaction time is 30~200
Minute, the slurries of certain viscosity are obtained, the slurries are cooled down with frozen water, pause polymerization is standby.In polymerization process, by above-mentioned slurries
Move into 40-60oIn C environment, in 100-120 after polymerization a couple of daysoIt is heat-treated under C high temperature, residual monomer is fully polymerized.Final
To polymer OCDs@PMMA；Described methyl methacrylate (MMA) and the mass ratio of oil-soluble carbon quantum dot are：20:1-
60:1。
Above-mentioned step (a) is replaced with：
A (), with ammonium hydrogen carbonate, sodium citrate as raw material, deionized water is solvent, fully dissolving stirs, and carries out hydro-thermal anti-
Should, hydrothermal temperature scope is 160~260oC, the reaction time is 2~10 hours, is dialysed 24 hours, then residual moisture is steamed
Hair obtains dry carbon quantum dot；Described ammonium hydrogen carbonate, the mol ratio of sodium citrate are：20:1-40:1.
(b) by step (a) gained carbon quantum dot and lauryl amine, octadecylamine or other containing amino Longer-chain surfactants
By 1:2-1:20 mass ratio is dissolved in toluene or other non-polar solvens in 140-200oHydro-thermal 1-6 hours under C, then remove
Upper solution, then distilled water centrifuge washing is used, removal toluene obtains oil-soluble carbon quantum dot.
Gained oil-soluble carbon quantum dot of the invention（OOCDs）Compared to other oil-solubles or Water-soluble carbon quantum dot, size
Smaller, a large amount of unsaturated carbon bonds are contained on surface, therefore with more preferable dispersiveness and luminescent properties.
Compared with prior art, the present invention has following obvious beneficial effect:
Carbon quantum dot prepared by the present invention contains abundant unsaturated carbon bond, and size is smaller, and luminous intensity is high, with good
Dispersiveness and luminescent properties, can be as the anti-aging probe of PMMA and in situ with PMMA poly- using oil-soluble carbon quantum dot
Closing the composite for obtaining has remarkable optical transparence (transmitance is up to 85 more than %), and the ultraviolet light of PMMA is old
Change more than 10 times of performance boost, this not only solves the answering in all solid state illumination of carbon quantum dot present in prior art
With, and also solve the problem that PMMA can not be used widely because ageing properties are poor.The OCDs@in burn-in test
Optimal excitation peak and emission peak the distribution stabilization of PMMA, show moderately good optical property.OCDs is used as a kind of effective
Nanometer additive can greatly enhance the anti-ultraviolet aging ability of PMMA.Additionally, representing singly referring to for OCDs emissive porwers
Number function is determined that, compared to other method, OCDs can be as detection PMMA in first Gao Ling of ageing step by ageing time
Quick fluorescence probe.
Brief description of the drawings
Fig. 1 is oil-soluble carbon quantum dot OOCDs and methyl methacrylate (MMA) in-situ polymerization schematic diagram.
Fig. 2 is oil-soluble carbon quantum dot OOCDs figures prepared by scheme one, and wherein illustration is the particle diameter distribution of carbon quantum dot
Figure.
Fig. 3 is the excitation and emission spectra of OCDs, and wherein illustration is luminous photos of the OOCDs under uviol lamp.
Fig. 4 is the xps energy spectrum of carbon quantum dot OOCDs.
Pure PMMA, TOCDs@PMMA and OOCDs@PMMA composite photographs of Fig. 5 and its luminous photo under ultraviolet light.
The composite photograph and its excitation and emission spectra of Fig. 6 carbon quantum dots and PMMA.
The pure PMMA (a) of Fig. 7, TOCDs@PMMA (b) and OOCDs@PMMA (c) composites are in different ageing times section
Transmitance.
Fig. 8 is photo of the OOCDs@PMMA composites in different ageing times section (24,48,72 hours).
Fig. 9 is the exciting and sending out in different ageing times section (0,24,48,72 hour) of OOCDs@PMMA composites
Penetrate spectrum.
Figure 10 is the exciting and sending out in different ageing times section (0,24,48,72 hour) of TOCDs@PMMA composites
Penetrate spectrum.
Specific embodiment
The invention provides a kind of method for preparing the polymer with superior aging resistance, prepared by using one-step method
OOCDs PMMA, and TOCDs PMMA are prepared using two-step method, compare both with the PMMA being combined without carbon quantum dot ultraviolet
Stability and ageing process under line irradiation.By adjusting reaction temperature, the time, dodecyl amine (DDA) amount of addition number,
Prepare the PMMA polymer with different degrees of ageing resistance by ultraviolet light.
Embodiment 1
1. the synthesis of OOCDs
It is as follows, using methyl methacrylate (MMA) as single predecessor one-step synthesis oil-soluble carbon quantum dot
（OOCDs）：By the methyl methacrylate (MMA) of 5.30ml and the dodecyl amine (DDA) of 2.97ml, and 2ml NH3·
H2O is added separately in the toluene of 20ml, is sealed in stainless steel autoclaves of the 100ml with polytetrafluoroethyllining lining, then
Reacted 2 hours under 180 °C respectively.From end reaction it is apparent from the point of view of there is oil solubility nanometer particle and oil-soluble residue to deposit
.
Product purification is remained with removing dodecyl amine (DDA) and methyl methacrylate (MMA).Therefore, every kind of product
All washed through 20ml water and 20ml ethanol, the emulsion for obtaining is centrifuged with centrifuge with 10000r/min again, is separated and is removed down
Layer solution, the process is repeated 2 times.Add 20ml pure waters 2 times, the organic product for obtaining further is dialysed in dialysis tubing
24 hours, finally it is stored under no light condition for future use.
Preparation
At room temperature, the OOCDs prepared by 1ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the metering system of 10ml
Sour methyl esters (MMA) and the benzoyl peroxide of 0.03g（BPO）Initiated polymerization.First 60 are reacted under 85 °C of water bath condition
Minute, then pour into the plastic casing of radius 14mm 13mm high in further being reacted 48 hours under 60 °C, finally it is polished to circular block
Shape thing.
Embodiment 2
1. the synthesis of OOCDs
It is as follows, using methyl methacrylate (MMA) as single predecessor one-step synthesis oil-soluble carbon quantum dot
（OOCDs）：By the methyl methacrylate (MMA) of 5.30 ml and the dodecyl amine (DDA) of 5.94 ml, and 2 ml
NH3·H2O is added separately in the toluene of 20 ml, is sealed in stainless steel autoclaves of 100 ml with polytetrafluoroethyllining lining
In, then reacted 4 hours under 200 °C respectively.From end reaction it is apparent from the point of view of have oil solubility nanometer particle and oil-soluble residual
Thing is stayed to exist.
Product purification is remained with removing dodecyl amine (DDA) and methyl methacrylate (MMA).Therefore, every kind of product
All washed through 20 ml water and 20 ml ethanol, the emulsion for obtaining is centrifuged with centrifuge with 10000 r/min again, is separated and is removed
Lower floor's solution, the process is repeated 2 times.Add 20 ml pure waters 2 times, the organic product for obtaining is further in dialysis tubing
Dialysis 24 hours, is finally stored under no light condition for future use.
Preparation
At room temperature, the OOCDs prepared by 1 ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the methyl-prop of 12 ml
The benzoyl peroxide of e pioic acid methyl ester (MMA) and 0.03g（BPO）Initiated polymerization.First reacted under 70 °C of water bath condition
90 minutes, then pour into the plastic casing of the mm of radius 14 13 mm high in further being reacted 48 hours under 60 °C, finally it is polished to circle
Shape block.
Embodiment 3
1. the synthesis of OOCDs
It is as follows, using methyl methacrylate (MMA) as single predecessor one-step synthesis oil-soluble carbon quantum dot
（OOCDs）：By the methyl methacrylate (MMA) of 5.30 ml and the dodecyl amine (DDA) of 11.88ml, and 4 ml
NH3·H2O is added separately in the toluene of 20 ml, is sealed in stainless steel autoclaves of 100 ml with polytetrafluoroethyllining lining
In, then reacted 6 hours under 220 °C respectively.From end reaction it is apparent from the point of view of have oil solubility nanometer particle and oil-soluble residual
Thing is stayed to exist.
Product purification is remained with removing dodecyl amine (DDA) and methyl methacrylate (MMA).Therefore, every kind of product
All washed through 20 ml water and 20 ml ethanol, the emulsion for obtaining is centrifuged with centrifuge with 10000 r/min again, is separated and is removed
Lower floor's solution, the process is repeated 2 times.Add 20 ml pure waters 2 times, the organic product for obtaining is further in dialysis tubing
Dialysis 24 hours, is finally stored under no light condition for future use.
Preparation
At room temperature, the OOCDs prepared by 1 ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the methyl-prop of 14 ml
The benzoyl peroxide of e pioic acid methyl ester (MMA) and 0.06g（BPO）Initiated polymerization.First reacted under 90 °C of water bath condition
60 minutes, then pour into the plastic casing of the mm of radius 14 13 mm high in further being reacted 48 hours under 60 °C, finally it is polished to circle
Shape block.
Embodiment 4
1. the synthesis of OOCDs
It is as follows, using methyl methacrylate (MMA) as single predecessor one-step synthesis oil-soluble carbon quantum dot
（OOCDs）：By the methyl methacrylate (MMA) of 5.30 ml and the dodecyl amine (DDA) of 17.82 ml, and 4 ml
NH3·H2O is added separately in the toluene of 20 ml, is sealed in stainless steel autoclaves of 100 ml with polytetrafluoroethyllining lining
In, then reacted 8 hours under 240 °C respectively.From end reaction it is apparent from the point of view of have oil solubility nanometer particle and oil-soluble residual
Thing is stayed to exist.
Product purification is remained with removing dodecyl amine (DDA) and methyl methacrylate (MMA).Therefore, every kind of product
All washed through 20 ml water and 20 ml ethanol, the emulsion for obtaining is centrifuged with centrifuge with 10000 r/min again, is separated and is removed
Lower floor's solution, the process is repeated 2 times.Add 20 ml pure waters 2 times, the organic product for obtaining is further in dialysis tubing
Dialysis 24 hours, is finally stored under no light condition for future use.
Preparation
At room temperature, the OOCDs prepared by 1 ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the methyl-prop of 16 ml
The benzoyl peroxide of e pioic acid methyl ester (MMA) and 0.03g（BPO）Initiated polymerization.First reacted under 65 °C of water bath condition
120 minutes, then pour into the plastic casing of the mm of radius 14 13 mm high in further being reacted 48 hours under 60 °C, finally it is polished to
Circular block shape thing.
Embodiment 5
1. the synthesis of TOCDs
Under normal temperature and pressure, 0.2g ammonium hydrogen carbonate, 1.5g are added in stainless steel autoclaves of the 100ml with polytetrafluoroethyllining lining
Ammoniacal liquor and 10ml high-purity waters, in 180 °C of lower hydro-thermal reactions 4 hours after mixing.Dialysed 24 hours with dialysis tubing afterwards, then will
Residual moisture is evaporated and obtains dry carbon quantum dot.Then the oil-soluble carbon quantum dot of 5 ml is dispersed in 15 ml distillations
In water, pH value is adjusted 5 with ethanedioic acid.The toluene of 20 ml and the dodecyl amine (DDA) of 0.1 g are added in the solution, will be mixed
Close suspension to be transferred in an autoclave with polytetrafluoroethyllining lining of 100 ml, heating 4 hours under 160 °C, so
After remove upper solution distilled water be centrifuged three times.Finally, residual toluene is evaporated and obtains dry oil soluble prepared by two steps
Property carbon quantum dot.
Preparation
At room temperature, the TOCDs prepared by 1 ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the methyl-prop of 10 ml
The benzoyl peroxide of e pioic acid methyl ester (MMA) and 0.03g（BPO）Initiated polymerization.First reacted under 85 °C of water bath condition
60 minutes, then pour into the plastic casing of the mm of radius 14 13 mm high in further being reacted 48 hours under 60 °C, finally it is polished to circle
Shape block.
Embodiment 6
1. the synthesis of TOCDs
Under normal temperature and pressure, 0.4g ammonium hydrogen carbonate, 1.5g are added in stainless steel autoclaves of the 100ml with polytetrafluoroethyllining lining
Ammoniacal liquor and 100ml high-purity waters, in 200 °C of lower hydro-thermal reactions 6 hours after mixing.Dialysed 24 hours with dialysis tubing afterwards, then will
Residual moisture is evaporated and obtains dry carbon quantum dot.Then the oil-soluble carbon quantum dot of 5 ml is dispersed in 15 ml distillations
In water, pH value is adjusted 6 with ethanedioic acid.The toluene of 20 ml and the dodecyl amine (DDA) of 0.1 g are added in the solution, will be mixed
Close suspension to be transferred in an autoclave with polytetrafluoroethyllining lining of 100 ml, heating 4 hours under 180 °C, so
After remove upper solution distilled water be centrifuged three times.Finally, residual toluene is evaporated and obtains dry oil soluble prepared by two steps
Property carbon quantum dot.
Preparation
At room temperature, the TOCDs prepared by 1 ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the methyl-prop of 12 ml
The benzoyl peroxide of e pioic acid methyl ester (MMA) and 0.03g（BPO）Initiated polymerization.First reacted under 70 °C of water bath condition
90 minutes, then pour into the plastic casing of the mm of radius 14 13 mm high in further being reacted 48 hours under 60 °C, finally it is polished to circle
Shape block.
Embodiment 7
1. the synthesis of TOCDs
Under normal temperature and pressure, 0.6g ammonium hydrogen carbonate, 1.5g are added in stainless steel autoclaves of the 100ml with polytetrafluoroethyllining lining
Ammoniacal liquor and 10ml high-purity waters, in 220 °C of lower hydro-thermal reactions 8 hours after mixing.Dialysed 24 hours with dialysis tubing afterwards, then will
Residual moisture is evaporated and obtains dry carbon quantum dot.Then the oil-soluble carbon quantum dot of 5 ml is dispersed in 15 ml distillations
In water, pH value is adjusted 6 with ethanedioic acid.The toluene of 20 ml and the dodecyl amine (DDA) of 0.1 g are added in the solution, will be mixed
Close suspension to be transferred in an autoclave with polytetrafluoroethyllining lining of 100 ml, heating 4 hours under 200 °C, so
After remove upper solution distilled water be centrifuged three times.Finally, residual toluene is evaporated and obtains dry oil soluble prepared by two steps
Property carbon quantum dot.
Preparation
At room temperature, the TOCDs prepared by 1 ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the methyl-prop of 14 ml
The benzoyl peroxide of e pioic acid methyl ester (MMA) and 0.06g（BPO）Initiated polymerization.First reacted under 90 °C of water bath condition
40 minutes, then pour into the plastic casing of the mm of radius 14 13 mm high in further being reacted 48 hours under 60 °C, finally it is polished to circle
Shape block.
Embodiment 8
1. the synthesis of TOCDs
Under normal temperature and pressure, 0.8 g ammonium hydrogen carbonate is added in stainless steel autoclaves of the 100ml with polytetrafluoroethyllining lining,
1.5g ammoniacal liquor and 10ml high-purity waters, in 240 °C of lower hydro-thermal reactions 4 hours after mixing.Dialysed 24 hours with dialysis tubing afterwards,
Residual moisture is evaporated again obtains dry carbon quantum dot.Then the oil-soluble carbon quantum dot of 5 ml is dispersed in 15 ml
In distilled water, pH value is adjusted 7 with ethanedioic acid.The toluene of 20 ml and the dodecyl amine (DDA) of 0.1 g are added in the solution,
Mixing suspension is transferred in an autoclave with polytetrafluoroethyllining lining of 100 ml, 4 is heated under 220 °C small
When, then remove upper solution distilled water and be centrifuged three times.Finally, residual toluene is evaporated and obtains the dry of two steps preparation
Oil-soluble carbon quantum dot.
Preparation
At room temperature, the TOCDs prepared by 1 ml is put into vacuum drying oven and is dried 4 hours, be subsequently added into the methyl-prop of 16 ml
The benzoyl peroxide of e pioic acid methyl ester (MMA) and 0.08 g（BPO）Initiated polymerization.It is first anti-under 65 °C of water bath condition
Answer 120 minutes, then pour into further being reacted 48 hours under 60 °C in the plastic casing of the mm of radius 14 13 mm high, it is final to polish
Circular block.
The advantage of product of the invention is described with reference to the drawings：
Contain abundant unsaturated carbon bond in carbon quantum dot surface prepared by the present invention（Shown in Fig. 1 and Fig. 4）, the small (1-10 of size
) and good dispersion nm（Shown in Fig. 2）, while having good luminescent properties（Shown in Fig. 3）, can be as the anti-aging spy of PMMA
Pin, and there is remarkable optical transparence (thoroughly using the composite that oil-soluble carbon quantum dot and PMMA in-situ polymerizations are obtained
The rate of mistake is up to 85 more than %, shown in Fig. 5 and Fig. 7), and the anti-ultraviolet aging of PMMA is improved more than 10 times, this is not
Application of the carbon quantum dot present in prior art in all solid state illumination is address only, and also solves PMMA because aging
Poor-performing and the problem that can not be used widely.The optimal excitation peak and emission peak of OCDs@PMMA point in burn-in test
Cloth stabilization, shows moderately good optical property（Shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10）.OCDs is used as a kind of effective
Nanometer additive can greatly enhance the anti-ultraviolet aging ability of PMMA.Additionally, representing singly referring to for OCDs emissive porwers
Number function is determined that, compared to other method, OCDs can be as detection PMMA in first Gao Ling of ageing step by ageing time
Quick fluorescence probe.
Claims (4)
1. a kind of oil-soluble carbon quantum dot, it is characterised in that the particle diameter of the oil-soluble carbon quantum dot is：1-10 nm, its surface is not
The content of saturated carbon key is：20%-50% .
2. a kind of polymer OCDs@PMMA, by polymethyl methacrylate and oil-soluble carbon quantum according to claim 1
Point in-situ polymerization is formed, it is characterised in that described polymethyl methacrylate (PMMA) and oil-soluble carbon quantum dot (OCDs)
Mass ratio is：20:1-60:1；The polymer is a kind of random copolymer, and carbon point and methacrylic acid are worth on macromolecular chain
Construction unit is in random arrangement.
3. a kind of method for preparing polymer OCDs@PMMA according to claim 1, it is characterised in that the method it is specific
Step is：
A methyl methacrylate and lauryl amine, octadecylamine or other Longer-chain surfactants containing amino are dissolved in toluene by ()
Or in other non-polar solvens, hydro-thermal reaction being carried out under air-proof condition, hydrothermal temperature scope is 140~260oC, during reaction
Between be 2~10 hours；Washed through water and ethanol, centrifugation takes organic layer, dialysed through methyl alcohol and separated, finally give oil-soluble
Carbon quantum dot；Described methyl methacrylate and lauryl amine, octadecylamine or other Longer-chain surfactants containing amino
Mol ratio is 4:1-2:3；
(b) at room temperature, by step (a) gained oil-soluble carbon quantum dot and methyl methacrylate, in initiator B PO or
AIBN effects are lower to be polymerized, and reaction condition is：In pre-polymerization process, temperature range is 60~100oC, the reaction time is 30~200
Minute, the slurries of certain viscosity are obtained, the slurries are cooled down with frozen water, pause polymerization is standby, in polymerization process, by above-mentioned slurries
Move into 40-60oIn C environment, in 100-120 after polymerization a couple of daysoIt is heat-treated under C high temperature, residual monomer is fully polymerized, final
To polymer OCDs@PMMA；Described methyl methacrylate (MMA) and the mass ratio of oil-soluble carbon quantum dot are：20:1-
60:1。
4. a kind of method according to claim 3, it is characterised in that replace with described step (a)：
A (), with ammonium hydrogen carbonate, sodium citrate as raw material, deionized water is solvent, fully dissolving stirs, and carries out hydro-thermal anti-
Should, hydrothermal temperature scope is 160~260oC, the reaction time is 2~10 hours, is dialysed 24 hours, then residual moisture is steamed
Hair obtains dry carbon quantum dot；Described ammonium hydrogen carbonate, the mol ratio of sodium citrate are：20:1-40:1；
B step (a) gained carbon quantum dot and lauryl amine, octadecylamine or other Longer-chain surfactants containing amino are pressed 1 by ():
2-1:20 mass ratio is dissolved in toluene or other non-polar solvens in 140-200oHydro-thermal 1-6 hours under C, upper strata is then removed
Solution, then distilled water centrifuge washing is used, removal toluene obtains oil-soluble carbon quantum dot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710166030.3A CN106916587B (en) | 2017-03-20 | 2017-03-20 | oil-soluble carbon quantum dot, polymer OCDs @ PMMA, and preparation method and application thereof |
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| CN201710166030.3A CN106916587B (en) | 2017-03-20 | 2017-03-20 | oil-soluble carbon quantum dot, polymer OCDs @ PMMA, and preparation method and application thereof |
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| CN107936966A (en) * | 2017-12-04 | 2018-04-20 | 广东上风环保科技有限公司 | The preparation method of carbon quantum dot and its method for detecting trace arsenite |
| CN108641705A (en) * | 2018-04-21 | 2018-10-12 | 太原理工大学 | Electroluminescent device emitting layer material based on carbon dots |
| CN109187949A (en) * | 2018-09-07 | 2019-01-11 | 浙江理工大学 | A method of ancient times woolen knitwear relic sort of wool is identified based on Western blot |
| CN110449595A (en) * | 2019-07-11 | 2019-11-15 | 四川大学 | The method and hydrophobicity gold, silver nano particle of step preparation hydrophobicity gold, silver nano particle in a kind of aqueous solution |
| CN110590982A (en) * | 2019-10-08 | 2019-12-20 | 武汉珈源同创科技有限公司 | Quantum dot fluorescent microsphere and preparation method thereof |
| CN111603570A (en) * | 2020-07-06 | 2020-09-01 | 南京工业大学 | Carbon-point-modified hollow copolymer nano particle, preparation method and application thereof, drug delivery system and application thereof |
| CN112175611A (en) * | 2020-09-22 | 2021-01-05 | 陕西科技大学 | Application of free radical initiator in adjusting and controlling maximum emission wavelength of carbon point fluorescence |
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| CN113683077A (en) * | 2021-08-04 | 2021-11-23 | 广东碳紫科技有限公司 | Oil-soluble carbon quantum dot, preparation method thereof and anti-ultraviolet master batch prepared from oil-soluble carbon quantum dot |
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| CN108641705A (en) * | 2018-04-21 | 2018-10-12 | 太原理工大学 | Electroluminescent device emitting layer material based on carbon dots |
| CN108641705B (en) * | 2018-04-21 | 2021-07-09 | 太原理工大学 | Luminescent layer material for carbon dot-based electroluminescent device |
| CN109187949A (en) * | 2018-09-07 | 2019-01-11 | 浙江理工大学 | A method of ancient times woolen knitwear relic sort of wool is identified based on Western blot |
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| CN112175611A (en) * | 2020-09-22 | 2021-01-05 | 陕西科技大学 | Application of free radical initiator in adjusting and controlling maximum emission wavelength of carbon point fluorescence |
| CN112574742B (en) * | 2020-11-13 | 2022-01-04 | 南京医科大学 | Dipyridyl methyl amine carbon quantum dot and synthesis method and application thereof |
| CN112574742A (en) * | 2020-11-13 | 2021-03-30 | 南京医科大学 | Dipyridyl methyl amine carbon quantum dot and synthesis method and application thereof |
| CN112730330A (en) * | 2021-01-19 | 2021-04-30 | 中南大学 | Carbon point waveguide-based benzoyl peroxide gas sensor |
| CN112730330B (en) * | 2021-01-19 | 2022-11-01 | 中南大学 | Carbon point waveguide-based benzoyl peroxide gas sensor |
| CN113683077A (en) * | 2021-08-04 | 2021-11-23 | 广东碳紫科技有限公司 | Oil-soluble carbon quantum dot, preparation method thereof and anti-ultraviolet master batch prepared from oil-soluble carbon quantum dot |
| WO2023011546A1 (en) * | 2021-08-04 | 2023-02-09 | 广东碳紫科技有限公司 | Oil-soluble carbon quantum dot, preparation method therefor, and anti-ultraviolet masterbatch prepared therefrom |
| CN117887463A (en) * | 2024-01-08 | 2024-04-16 | 曲阜师范大学 | Preparation method of temperature response type red phosphorescent material, obtained product and application |
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