CN107216426A - A kind of modification imprinting polymer for improving adsorption capacity - Google Patents

A kind of modification imprinting polymer for improving adsorption capacity Download PDF

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Publication number
CN107216426A
CN107216426A CN201710442803.6A CN201710442803A CN107216426A CN 107216426 A CN107216426 A CN 107216426A CN 201710442803 A CN201710442803 A CN 201710442803A CN 107216426 A CN107216426 A CN 107216426A
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mass ratio
modification
polymer
adsorption capacity
template molecule
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张保丰
蒋爱云
姜爱菊
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Huanghe Science and Technology College
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Huanghe Science and Technology College
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26Synthetic macromolecular compounds
    • B01J20/268Polymers created by use of a template, e.g. molecularly imprinted polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/02Elements
    • C08K3/04Carbon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Analytical Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention belongs to microsphere technical field of polymer, especially a kind of modification imprinting polymer for improving adsorption capacity, solve carbon microspheres molecular imprinted polymer on surface in the prior art selectively low, compatibility is poor, cause adsorptivity not high, and the problem of its preparation process complexity, the modification imprinting polymer for improving adsorption capacity, refer to first template molecule and function monomer are dissolved in solvent, then crosslinking agent is added, polymerization initiator copolymerization obtains imprinting polymer of the surface containing activity functional groups, finally prepare after modified material carries out surface modification to it and obtained through eluent.Modified imprinting polymer produced by the present invention specific can be combined generation precipitation with organosulfur compound, so as to obtain good desulfurized effect, it has high selectivity and compatibility, adsorptivity is strong, and adsorption rate is high, and its preparation method is simple, prepare cost low, have a extensive future.

Description

A kind of modification imprinting polymer for improving adsorption capacity
Technical field
The present invention relates to microsphere technical field of polymer, more particularly to a kind of modification trace for improving adsorption capacity are high Molecularly Imprinted Polymer.
Background technology
Molecular imprinting technology is in recent years in the subject base such as polymer chemistry, biochemistry, materials chemistry and bionics techniques The emerging cross discipline grown up on plinth.Molecularly imprinted polymer therefrom (MolecularlyImprintedPolymers, abbreviation MIPs) has the compatibility excellent to guest molecule and single-minded selection Property, good stability and the advantages of prepare easy, thus as the focus of molecular recognition area research in the world.Patent application Numbers 201010613255.7 disclose a kind of preparation method and application of molecularly imprinted polymer, by template of tanshinone IIA point Son, the molecularly imprinted polymer of preparation shows good compatibility and selectivity in aqueous mobile phase to tanshinone IIA;Specially Sharp application number 201210237655.1 discloses a kind of preparation method of urethanes molecularly imprinted polymer, made from it Coagulative precipitation after molecularly imprinted polymer can be specifically bound with urethanes, so as to filter and remove, reduces ammonia The content of base Ethyl formate.So far, people have synthesized the MIPs of numerous template molecules, and its application study has also extended To numerous sides such as chromatographic stationary phases, solid phase extractions, biosimulation detection and sensor, artificial enzyme, organic synthesis and drug delivery Face, and show huge application prospect in the field such as food and Environmental security detection.
Organosulfur compound (organosulfurcompound) refers to the organic compound containing carbon-sulfur bond, be present in oil and In animal and plant body.Say in quantity, organosulfur compound is only second to oxygen-containing or nitrogenous organic compound.Organic sulfur compound is wide It is general to be used as the association areas such as medicine, agricultural chemicals, dyestuff, solvent, detergent and vulcanizer.In recent years, sulphur-containing exhaust gas, waste water are dirty Dye problem is increasingly severe.With the continuous enhancing of people's environmental consciousness, the requirement of total sulfur content is more and more tight in sulfur-bearing commodity Lattice, the research and development of sulphur removing process technology receive common concern.Molecular imprinting technology is in the technical application prospect of sulfur removal technology It is wide.Article is numbered:1007-8827 (2014) 01-0001-14 describes molecular engram desulfurization technology in oil product deep desulfuration Progress, especially describe the current research of carbon microspheres surface molecule print desulfurization technology, carbon microspheres surface molecule print Desulfurization has the characteristics of reaction condition is gentle, technique is simple, pollution is few, but its low, compatibility of selectivity is poor, causes adsorptivity not Height, and the preparation process of carbon microspheres molecular imprinted polymer on surface is complicated.Based on above statement, the present invention proposes a kind of raising The modification imprinting polymer of adsorption capacity.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of raising adsorption capacity proposed Modified imprinting polymer, which solves carbon microspheres molecular imprinted polymer on surface in the prior art selectively low, affine Property it is poor, cause adsorptivity not high, and its preparation process it is complicated the problem of.
A kind of modification imprinting polymer for improving adsorption capacity, the modified imprinting polymer refers to elder generation Template molecule and function monomer are dissolved in solvent, crosslinking agent, polymerization initiator copolymerization is then added and obtains surface containing active work( The imprinting polymer of energy group, finally prepares after modified material carries out surface modification to it and is obtained through eluent;
The mass ratio of the template molecule and function monomer is 1:4~6.5;The mass ratio of the template molecule and solvent is 1:7.2~8.8;The mass ratio of the template molecule and crosslinking agent is 1:0.5~1.1;The template molecule and polymerization initiator Mass ratio be 1:0.8~1.5;The mass ratio of the template molecule and modified material is 1:15.3~22.5.
It is preferred that, the template molecule be organosulfur compound, preferably thioether, thiophenol, mercaptan, thioaldehydes, thiocarboxylic acid or One kind in disulphide.
It is preferred that, the function monomer is that mass ratio is 1:1 methyl methacrylate and polyacrylate built agent.
It is preferred that, the solvent is one kind or any in toluene, dimethyl sulfoxide (DMSO), DMF and chloroform Two kinds of mixed liquors.
It is preferred that, the polymerization initiator is azo initiator, preferably azodiisobutyronitrile, ABVN or idol One kind in the isobutyl dimethyl phthalate of nitrogen two.
It is preferred that, the modified material is 1~2.1 by mass ratio:4~7.2 nano titanium oxide and graphite powder is in mistake The mass ratio of amount is 1:Reaction is obtained in 3.5~5.2 potassium permanganate/sulfuric acid mixture liquid.
It is preferred that, the eluant, eluent is that mass ratio is 1:0.8~1.5:0.2~0.6 ethanol, ethylene glycol and the alkane of dioxy six Mixed liquor.
The invention also provides a kind of preparation method for the modification imprinting polymer for improving adsorption capacity, including with Lower step:
S1, the template molecule and function monomer of the mass ratio be dissolved in solvent, heating water bath is to 48~65 DEG C, insulation The crosslinking agent and polymerization initiator of the mass ratio are added, in the case where being passed through inert protective gas, 6~18h of polymerisation, Obtain the polymer containing template molecule;
S2, the nano titanium oxide and graphite powder of the mass ratio are added to excessive potassium permanganate/sulfuric acid mixture liquid In, it is heated at high temperature to 278~328 DEG C, reacts 4~8h, obtain modified material;
S3, the polymer containing template molecule that the modified material of gained in step S2 is added in step S1 to gained In, after 18~25min of ultrasonic dissolution, 88~118 DEG C are heated to, with 80~120r/min rotating speed, 2~3h of stirring reaction is obtained It is polymer-modified;
S4, the polymer-modified of gained in step S3 be added in excessive eluant, eluent, after 2~4h of immersion, then rope Family name is extracted to clean template molecule, is subsequently placed in vacuum drying chamber, in the environment of 45~70 DEG C, is dried under vacuum to constant weight, Produce required modification imprinting polymer.
It is preferred that, inert protective gas is one kind in helium, neon or argon gas in the step S1.
It is preferred that, the purity of inert protective gas is more than 99.99% in the step S1.
A kind of modification imprinting polymer for improving adsorption capacity proposed by the present invention, it has high selectivity And compatibility, by force, adsorption rate is high for adsorptivity, and the present invention is using organosulfur compound as template molecule, obtained modified trace high score Sub- polymer specific can be combined generation precipitation with organosulfur compound, so as to obtain good desulfurized effect, the present invention is also Propose a kind of preparation method for the modification imprinting polymer for improving adsorption capacity, by template molecule and function monomer, Crosslinking agent, polymerization initiator are carried out after copolyreaction in porogenic solvents, and adsorptivity is carried out to it using the modified material of preparation Enhancing, its preparation method is simple, prepares that cost is low, and gained is modified imprinting polymer to the adsorption rate of organic sulfur compound most Up to 48.2%, the fields such as daily life, industrial production and Environmental security detection are can be widely applied to, are had a extensive future.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment one
A kind of modification imprinting polymer for improving adsorption capacity proposed by the present invention, wherein, modified trace high score Sub- polymer refers to thioether and methyl methacrylate and polyacrylate built agent first are dissolved in into dimethyl sulfoxide (DMSO) and N, N- bis- In the arbitrary proportion mixed liquor of NMF, then add crosslinking agent, azodiisobutyronitrile copolymerization and obtain surface containing active work( The imprinting polymer of energy group, finally prepares modified material and it is carried out after the modification of surface through ethanol, ethylene glycol and two The mixed liquor of the alkane of oxygen six is afforded;
Wherein, the mass ratio of thioether and methyl methacrylate and polyacrylate built agent is 1:4.8;Thioether and diformazan The mass ratio of the arbitrary proportion mixed liquor of base sulfoxide and N,N-dimethylformamide is 1:7.5;The mass ratio of thioether and crosslinking agent For 1:1;The mass ratio of thioether and azodiisobutyronitrile is 1:0.8;The mass ratio of thioether and modified material is 1:22.5.
Its preparation method, comprises the following steps:
S1, by the thioether and mass ratio of the mass ratio be 1:1 methyl methacrylate and polyacrylate built agent In the arbitrary proportion mixed liquor for being dissolved in dimethyl sulfoxide (DMSO) and DMF, heating water bath is to 62 DEG C, and insulation adds institute The crosslinking agent and azodiisobutyronitrile of mass ratio are stated, in the case where being passed through helium of the purity more than 99.99%, polymerisation 10h, obtains the polymer containing thioether;
S2, the nano titanium oxide and graphite powder of the mass ratio are added to excessive potassium permanganate/sulfuric acid mixture liquid In, it is heated at high temperature to 290 DEG C, reacts 7h, obtain modified material;
S3, the modified material of gained in step S2 is added in step S1 in the polymer containing thioether of gained, surpassed After sound dissolving 20min, 100 DEG C are heated to, with 100r/min rotating speed, stirring reaction 2.5h obtains polymer-modified;
S4, the polymer-modified of gained in step S3 be added to excessive mass ratio for 1:1.1:0.5 ethanol, second two Alcohol is with the mixed liquor of the alkane of dioxy six, soaking after 2.5h, then soxhlet type is subsequently placed in vacuum drying chamber to clean thioether It is interior, in the environment of 60 DEG C, constant weight is dried under vacuum to, required modification imprinting polymer is produced.
Embodiment two
A kind of modification imprinting polymer for improving adsorption capacity proposed by the present invention, wherein, modified trace high score Sub- polymer refers to disulphide and methyl methacrylate and polyacrylate built agent first are dissolved in into dimethyl sulfoxide (DMSO) and chlorine In imitative arbitrary proportion mixed liquor, then add crosslinking agent, azodiisobutyronitrile copolymerization and obtain surface containing activity functional groups Imprinting polymer, finally prepares modified material and it is carried out after the modification of surface through ethanol, ethylene glycol and the alkane of dioxy six Mixed liquor is afforded;
Wherein, the mass ratio of disulphide and methyl methacrylate and polyacrylate built agent is 1:5;Disulphide Mass ratio with dimethyl sulfoxide (DMSO) and the arbitrary proportion mixed liquor of chloroform is 1:8;The mass ratio of disulphide and crosslinking agent is 1: 0.8;The mass ratio of disulphide and azodiisobutyronitrile is 1:1.2;The mass ratio of disulphide and modified material is 1:16.8.
Its preparation method, comprises the following steps:
S1, by the disulphide and mass ratio of the mass ratio be 1:1 methyl methacrylate and polyacrylate is answered Ingredients is dissolved in the arbitrary proportion mixed liquor of dimethyl sulfoxide (DMSO) and chloroform, and heating water bath is to 48 DEG C, and insulation adds the mass ratio Crosslinking agent and azodiisobutyronitrile, be passed through purity more than 99.99% argon gas in the case of, polymerisation 18h is contained There is the polymer of disulphide;
S2, the nano titanium oxide and graphite powder of the mass ratio are added to excessive potassium permanganate/sulfuric acid mixture liquid In, it is heated at high temperature to 285 DEG C, reacts 8h, obtain modified material;
S3, the polymer containing disulphide that the modified material of gained in step S2 is added in step S1 to gained In, after ultrasonic dissolution 18min, 88 DEG C are heated to, with 80r/min rotating speed, stirring reaction 3h obtains polymer-modified;
S4, the polymer-modified of gained in step S3 be added to excessive mass ratio for 1:0.8:0.2 ethanol, second two Alcohol is with the mixed liquor of the alkane of dioxy six, soaking after 4h, then soxhlet type is subsequently placed in vacuum drying chamber to clean disulphide It is interior, in the environment of 45 DEG C, constant weight is dried under vacuum to, required modification imprinting polymer is produced.
Embodiment three
A kind of modification imprinting polymer for improving adsorption capacity proposed by the present invention, wherein, modified trace high score Sub- polymer refers to any ratio that thioaldehydes and methyl methacrylate and polyacrylate built agent are first dissolved in toluene and chloroform In example mixed liquor, then add crosslinking agent, azo-bis-iso-dimethyl copolymerization and obtain trace of the surface containing activity functional groups High molecular polymer, finally prepares modified material and mixing through ethanol, ethylene glycol and the alkane of dioxy six after the modification of surface is carried out to it Liquid is afforded;
Wherein, the mass ratio of thioaldehydes and methyl methacrylate and polyacrylate built agent is 1:6.2;Thioaldehydes and toluene Mass ratio with the arbitrary proportion mixed liquor of chloroform is 1:8.2;The mass ratio of thioaldehydes and crosslinking agent is 1:0.5;Thioaldehydes and azo The mass ratio of two isobutyl dimethyl phthalates is 1:1;The mass ratio of thioaldehydes and modified material is 1:20.
Its preparation method, comprises the following steps:
S1, by the thioaldehydes and mass ratio of the mass ratio be 1:1 methyl methacrylate and polyacrylate built agent In the arbitrary proportion mixed liquor for being dissolved in toluene and chloroform, heating water bath to 50 DEG C, insulation add the mass ratio crosslinking agent and Azo-bis-iso-dimethyl, in the case where being passed through neon of the purity more than 99.99%, polymerisation 15h is obtained containing sulphur The polymer of aldehyde;
S2, the nano titanium oxide and graphite powder of the mass ratio are added to excessive potassium permanganate/sulfuric acid mixture liquid In, it is heated at high temperature to 300 DEG C, reacts 6h, obtain modified material;
S3, the modified material of gained in step S2 is added in step S1 in the polymer containing thioaldehydes of gained, surpassed After sound dissolving 25min, 95 DEG C are heated to, with 90r/min rotating speed, stirring reaction 2.8h obtains polymer-modified;
S4, the polymer-modified of gained in step S3 be added to excessive mass ratio for 1:1.5:0.4 ethanol, second two In the mixed liquor of alcohol and the alkane of dioxy six, after immersion 3h, then soxhlet type is subsequently placed in vacuum drying chamber to clean thioaldehydes, In the environment of 70 DEG C, constant weight is dried under vacuum to, required modification imprinting polymer is produced.
Example IV
A kind of modification imprinting polymer for improving adsorption capacity proposed by the present invention, wherein, modified trace high score Sub- polymer refers to thiocarboxylic acid and methyl methacrylate and polyacrylate built agent first are dissolved in into toluene and N, N- diformazans In the arbitrary proportion mixed liquor of base formamide, then add crosslinking agent, ABVN copolymerization and obtain surface containing active function The imprinting polymer of group, finally prepares modified material and it is carried out after the modification of surface through ethanol, ethylene glycol and dioxy The mixed liquor of six alkane is afforded;
Wherein, the mass ratio of thiocarboxylic acid and methyl methacrylate and polyacrylate built agent is 1:4;Thiocarboxylic acid Mass ratio with toluene and the arbitrary proportion mixed liquor of N,N-dimethylformamide is 1:7.2;The matter of thiocarboxylic acid and crosslinking agent Amount is than being 1:1.1;The mass ratio of thiocarboxylic acid and ABVN is 1:1.5;The mass ratio of thiocarboxylic acid and modified material For 1:18.
Its preparation method, comprises the following steps:
S1, by the thiocarboxylic acid and mass ratio of the mass ratio be 1:1 methyl methacrylate and polyacrylate is answered Ingredients is dissolved in the arbitrary proportion mixed liquor of toluene and DMF, and heating water bath is to 65 DEG C, and insulation adds described The crosslinking agent and ABVN of mass ratio, in the case where being passed through helium of the purity more than 99.99%, polymerisation 8h, Obtain the polymer containing thiocarboxylic acid;
S2, the nano titanium oxide and graphite powder of the mass ratio are added to excessive potassium permanganate/sulfuric acid mixture liquid In, it is heated at high temperature to 325 DEG C, reacts 4h, obtain modified material;
S3, the polymer containing thiocarboxylic acid that the modified material of gained in step S2 is added in step S1 to gained In, after ultrasonic dissolution 22min, 105 DEG C are heated to, with 110r/min rotating speed, stirring reaction 2.2h obtains polymer-modified;
S4, the polymer-modified of gained in step S3 be added to excessive mass ratio for 1:1:0.3 ethanol, ethylene glycol With in the mixed liquor of the alkane of dioxy six, soaking after 3.5h, then soxhlet type is subsequently placed in vacuum drying chamber to clean thiocarboxylic acid It is interior, in the environment of 50 DEG C, constant weight is dried under vacuum to, required modification imprinting polymer is produced.
Embodiment five
A kind of modification imprinting polymer for improving adsorption capacity proposed by the present invention, wherein, modified trace high score Sub- polymer refers to thiophenol and methyl methacrylate and polyacrylate built agent first are dissolved in into dimethyl sulfoxide (DMSO) and chloroform In arbitrary proportion mixed liquor, then add crosslinking agent, ABVN copolymerization and obtain trace of the surface containing activity functional groups High molecular polymer, finally prepares modified material and mixing through ethanol, ethylene glycol and the alkane of dioxy six after the modification of surface is carried out to it Liquid is afforded;
Wherein, the mass ratio of thiophenol and methyl methacrylate and polyacrylate built agent is 1:6.5;Thiophenol and diformazan The mass ratio of the arbitrary proportion mixed liquor of base sulfoxide and chloroform is 1:8.8;The mass ratio of thiophenol and crosslinking agent is 1:0.6;Thiophenol Mass ratio with ABVN is 1:1.4;The mass ratio of thiophenol and modified material is 1:21.
Its preparation method, comprises the following steps:
S1, by the thiophenol and mass ratio of the mass ratio be 1:1 methyl methacrylate and polyacrylate built agent In the arbitrary proportion mixed liquor for being dissolved in dimethyl sulfoxide (DMSO) and chloroform, heating water bath is to 60 DEG C, and insulation adds the friendship of the mass ratio Join agent and ABVN, in the case where being passed through neon of the purity more than 99.99%, polymerisation 12h is obtained containing sulphur The polymer of phenol;
S2, the nano titanium oxide and graphite powder of the mass ratio are added to excessive potassium permanganate/sulfuric acid mixture liquid In, it is heated at high temperature to 310 DEG C, reacts 5h, obtain modified material;
S3, the modified material of gained in step S2 is added in step S1 in the polymer containing thiophenol of gained, surpassed After sound dissolving 24min, 118 DEG C are heated to, with 120r/min rotating speed, stirring reaction 2h obtains polymer-modified;
S4, the polymer-modified of gained in step S3 be added to excessive mass ratio for 1:1.2:0.6 ethanol, second two In the mixed liquor of alcohol and the alkane of dioxy six, after immersion 2h, then soxhlet type is subsequently placed in vacuum drying chamber to clean thiophenol, In the environment of 55 DEG C, constant weight is dried under vacuum to, required modification imprinting polymer is produced.
The modification imprinting polymer of the raising adsorption capacity prepared respectively in the test embodiment of the present invention one~five To the adsorption capacity of organic sulfur compound, following result is drawn:
Embodiment One Two Three Four Five
Adsorption rate (%) 45.7 42.5 47.1 44.6 48.2
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (10)

1. a kind of modification imprinting polymer for improving adsorption capacity, it is characterised in that the modified imprinting gathers Compound refers to first template molecule and function monomer are dissolved in solvent, then adds crosslinking agent, polymerization initiator copolymerization and obtains table Imprinting polymer of the face containing activity functional groups, finally prepares modified material and it is carried out after the modification of surface through eluant, eluent Afford;
The mass ratio of the template molecule and function monomer is 1:4~6.5;The mass ratio of the template molecule and solvent is 1: 7.2~8.8;The mass ratio of the template molecule and crosslinking agent is 1:0.5~1.1;The template molecule and polymerization initiator Mass ratio is 1:0.8~1.5;The mass ratio of the template molecule and modified material is 1:15.3~22.5.
2. a kind of modification imprinting polymer for improving adsorption capacity according to claim 1, it is characterised in that institute Template molecule is stated for organosulfur compound, preferably one kind in thioether, thiophenol, mercaptan, thioaldehydes, thiocarboxylic acid or disulphide.
3. a kind of modification imprinting polymer for improving adsorption capacity according to claim 1, it is characterised in that institute It is that mass ratio is 1 to state function monomer:1 methyl methacrylate and polyacrylate built agent.
4. a kind of modification imprinting polymer for improving adsorption capacity according to claim 1, it is characterised in that institute It is one kind or any two kinds of mixed liquors in toluene, dimethyl sulfoxide (DMSO), N,N-dimethylformamide and chloroform to state solvent.
5. a kind of modification imprinting polymer for improving adsorption capacity according to claim 1, it is characterised in that institute It is azo initiator to state polymerization initiator, preferably azodiisobutyronitrile, ABVN or azo-bis-iso-dimethyl In one kind.
6. a kind of modification imprinting polymer for improving adsorption capacity according to claim 1, it is characterised in that institute It is 1~2.1 that modified material, which is stated, by mass ratio:4~7.2 nano titanium oxide and graphite powder is 1 in excessive mass ratio:3.5 Reaction is obtained in~5.2 potassium permanganate/sulfuric acid mixture liquid.
7. a kind of modification imprinting polymer for improving adsorption capacity according to claim 1, it is characterised in that institute It is that mass ratio is 1 to state eluant, eluent:0.8~1.5:The mixed liquor of 0.2~0.6 ethanol, ethylene glycol and the alkane of dioxy six.
8. a kind of preparation side of the modification imprinting polymer of the raising adsorption capacity any one of claim 1-7 Method, it is characterised in that comprise the following steps:
S1, the template molecule and function monomer of the mass ratio be dissolved in solvent, heating water bath is to 48~65 DEG C, and insulation is added The crosslinking agent and polymerization initiator of the mass ratio, in the case where being passed through inert protective gas, 6~18h of polymerisation is obtained Polymer containing template molecule;
S2, the nano titanium oxide and graphite powder of the mass ratio be added in excessive potassium permanganate/sulfuric acid mixture liquid, it is high Temperature is heated to 278~328 DEG C, reacts 4~8h, obtains modified material;
S3, the modified material of gained in step S2 is added in step S1 in the polymer containing template molecule of gained, surpassed Sound is dissolved after 18~25min, is heated to 88~118 DEG C, and with 80~120r/min rotating speed, 2~3h of stirring reaction must be modified poly- Compound;
S4, by step S3 gained it is polymer-modified be added in excessive eluant, eluent, immersion 2~4h after, then Soxhlet is taken out Carry to clean template molecule, be subsequently placed in vacuum drying chamber, in the environment of 45~70 DEG C, be dried under vacuum to constant weight, produce Required modification imprinting polymer.
9. a kind of preparation method of modification imprinting polymer for improving adsorption capacity according to claim 8, its It is characterised by, inert protective gas is one kind in helium, neon or argon gas in the step S1.
10. a kind of preparation method of modification imprinting polymer for improving adsorption capacity according to claim 8, its It is characterised by, the purity of inert protective gas is more than 99.99% in the step S1.
CN201710442803.6A 2017-06-13 2017-06-13 A kind of modification imprinting polymer for improving adsorption capacity Pending CN107216426A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111659438A (en) * 2020-06-01 2020-09-15 闽南师范大学 Preparation method of targeted adsorption in-situ regeneration hydrophilic nano molecularly imprinted material
CN115852065A (en) * 2022-10-14 2023-03-28 广西新蜜技制糖有限责任公司 Method for preparing white sugar by squeezing sugarcane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111659438A (en) * 2020-06-01 2020-09-15 闽南师范大学 Preparation method of targeted adsorption in-situ regeneration hydrophilic nano molecularly imprinted material
CN111659438B (en) * 2020-06-01 2023-06-02 闽南师范大学 Preparation method of targeted adsorption in-situ regeneration hydrophilic nano molecularly imprinted material
CN115852065A (en) * 2022-10-14 2023-03-28 广西新蜜技制糖有限责任公司 Method for preparing white sugar by squeezing sugarcane

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