CN105670027B - The modified polymeric base material and preparation method thereof in silsesquioxane surface - Google Patents
The modified polymeric base material and preparation method thereof in silsesquioxane surface Download PDFInfo
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- CN105670027B CN105670027B CN201610023298.7A CN201610023298A CN105670027B CN 105670027 B CN105670027 B CN 105670027B CN 201610023298 A CN201610023298 A CN 201610023298A CN 105670027 B CN105670027 B CN 105670027B
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 229960003638 dopamine Drugs 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002356 single layer Substances 0.000 claims abstract 2
- -1 siloxanes Chemical class 0.000 claims description 28
- 239000004698 Polyethylene Substances 0.000 claims description 23
- 229920000573 polyethylene Polymers 0.000 claims description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 21
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 14
- 239000004417 polycarbonate Substances 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229920000515 polycarbonate Polymers 0.000 claims description 7
- 239000000872 buffer Substances 0.000 claims description 6
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 239000007853 buffer solution Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 1
- 230000002269 spontaneous effect Effects 0.000 claims 1
- 239000010409 thin film Substances 0.000 claims 1
- 238000012986 modification Methods 0.000 abstract description 6
- 230000004048 modification Effects 0.000 abstract description 6
- 238000002845 discoloration Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 abstract description 4
- 230000010148 water-pollination Effects 0.000 abstract description 4
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000006845 Michael addition reaction Methods 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
- 125000004151 quinonyl group Chemical group 0.000 abstract 1
- 239000008367 deionised water Substances 0.000 description 7
- 229910021641 deionized water Inorganic materials 0.000 description 7
- 238000001291 vacuum drying Methods 0.000 description 7
- 238000002791 soaking Methods 0.000 description 5
- 206010013786 Dry skin Diseases 0.000 description 4
- WTDRDQBEARUVNC-UHFFFAOYSA-N L-Dopa Natural products OC(=O)C(N)CC1=CC=C(O)C(O)=C1 WTDRDQBEARUVNC-UHFFFAOYSA-N 0.000 description 4
- 239000007983 Tris buffer Substances 0.000 description 4
- MHUWZNTUIIFHAS-CLFAGFIQSA-N dioleoyl phosphatidic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(COP(O)(O)=O)OC(=O)CCCCCCC\C=C/CCCCCCCC MHUWZNTUIIFHAS-CLFAGFIQSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 229960004502 levodopa Drugs 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 229960004756 ethanol Drugs 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229920006266 Vinyl film Polymers 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000004506 ultrasonic cleaning Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/16—Chemical modification with polymerisable compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/02—Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a kind of modified polymeric base materials and preparation method thereof in silsesquioxane surface.The base material is in polymeric substrate surface, Michael addition reaction occurs using the quinonyl that the amino or sulfydryl of silsesquioxane and dopamine auto polymerization generate, chemical bond is formed, so that silsesquioxane is firmly grafted on the surface of polymeric base material, reaching improves the polar effect of substrate.The present invention does not damage the intensity of substrate, and the unobvious thickness for increasing substrate, modified layer is very thin, belongs to monolayer interface modification, improves material surface property.The surface energy for not only improving material, enhances surface polarity, so that low-surface-energy substrate is obtained good hydrophily, and significantly reduce discoloration, improve the appearance of material.In addition, this method reaction condition is mild, it can carry out at room temperature, can be adapted for the substrate of non-refractory.
Description
Technical field
The present invention relates to a kind of modified polymeric base materials and preparation method thereof in silsesquioxane surface.
Background technique
By Reasonable Regulation And Control surface texture and composition, the purpose for improving material property can achieve.How using simply just
Victory, method applied widely improve surface energy polymer and need more explore.Such as: lithium battery business diaphragm polyolefin (PE,
PP etc.) due to surface can it is low, it is poor to the compatibility of electrolyte, cannot all show so as to cause the excellent electrochemistry of lithium battery
(Arora, P.; Zhang, Z. M. Battery Separators. Chem. Rev. 2004, 104,4419 −
4462.)；The hydrophily of water-oil separationg film is poor, and the efficiency of water-oil separating is relatively low, cannot effectively alleviate water pollution problems
(Mussel-inspired modification of polymer membrane for ultrahigh permeability
and oil-in-water emulsion separation, J. Mater. Chem. A, 2014, 2, 10225-
10230).
The method of modifying of present polymeric substrates mainly has corona treatment, and chemical surface graft modification is coated with hydrophilic
Coating.But these methods all have the shortcomings that it is obvious: the method for corona treatment can destroy the machine of film class base material
The method of tool intensity, chemical surface graft modification causes environmental pollution, the coating that rubbing method obtains using a large amount of toxic solvent
The thickness of layer is blocked up, and in use since the coefficient of expansion is different and the constantly factors such as friction cause coating layer easily
It peels off.Interfacial characteristics can be improved to a certain extent by carrying out surface treatment using the auto polymerization of dopamine, but with DOPA
Aterrimus is presented in the table of the progress of the polymerization reaction of amine, material, seriously affects the appearance of product, limits answering in certain fields
With, such as PC translucency plate can be seriously reduced, constrain the application in optical field.
Summary of the invention
One of the objects of the present invention is to provide a kind of polymer-modified base materials in silsesquioxane surface.
The second object of the present invention is to provide the preparation method of the base material.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of preparation method of the modified polymeric base material in silsesquioxane surface, it is characterised in that this method be by
It is 1mM ~ 15mM that silsesquioxane and dopamine, which are dissolved in concentration, and the trishydroxymethylaminomethane buffering that pH value is 6. 5 ~ 9.5 is molten
The total concentration that silsesquioxane and dopamine are configured in liquid is the reaction solution of 0.5 ~ 3.0mg/ml；Then pretreated is gathered
It closes the submergence of object substrate and submerges 12h ~ 72h in the reaction solution, it is dry to get the polymeric substrates modified to silsesquioxane surface
Material.
The modified polymeric base material in above-mentioned silsesquioxane surface, it is characterised in that the silsesquioxane
Structural formula are as follows:
The functional group of silsesquioxane can be
Rx isOrAnd its homologue with same functional group, x are that 1 ~ 8, n is 0 ~ 4.
The modified polymeric base material in above-mentioned silsesquioxane surface, it is characterised in that the silsesquioxane and
The mass ratio of dopamine is (0.25~4): 1.
The modified polymeric base material in above-mentioned silsesquioxane surface, it is characterised in that the polymeric substrate
Are as follows: polyethylene, polypropylene porous membrane, polypropylene, polyethylene/polypropylene composite materials porous membrane, polycarbonate sheet or polytetrafluoro
Vinyl film.
The preprocess method of above-mentioned polymeric substrate are as follows: polymeric substrate is cleaned with acetone and EtOH Sonicate respectively,
It is dry.
Organic solvent, the volume ratio of the buffer and organic solvent are also added in above-mentioned buffer are as follows: 1:1~
4:1.
Above-mentioned organic solvent are as follows: dehydrated alcohol or anhydrous methanol.
The present invention improves material surface under the premise of the intensity for not damaging substrate, the unobvious thickness for increasing substrate
Energy.The surface energy for not only improving material, enhances surface polarity, so that low-surface-energy substrate is obtained good hydrophily, and obvious
Discoloration is reduced, the appearance of material is improved.In addition, this method reaction condition is mild, can carry out at room temperature, it can be with
Substrate suitable for non-refractory.
Advantages of the present invention feature is summarized as follows:
1, low for the requirement of substrate, without physical attributes such as the sizes, size, shape that consider substrate, it can improve and appoint
Meaning hydrophobic substrate；
2, the intensity of substrate is not damaged, does not increase the thickness of substrate, and modified layer is very thin, and it is modified to belong to molecule layer interface；
3, the surface energy for not only improving material, enhances surface polarity, and low-surface-energy substrate is made to obtain good hydrophily, and
And discoloration is significantly reduced, improve the appearance of material；
4, this method reaction condition is mild, easy to operate, can carry out at room temperature, can be adapted for the base of non-refractory
Material.
The present invention will have nanoscale cage structure silsesquioxane polyhedron and dopamine by copolyreaction to substrate
Surface is modified, and is not only improved the surface energy of material, is enhanced surface polarity, obtains low-surface-energy substrate good hydrophilic
Property, and discoloration is significantly reduced, improve the appearance of material.In addition, this method reaction condition is mild, it can be in room temperature
Lower progress, can be adapted for the substrate of non-refractory.
Detailed description of the invention
Fig. 1 polycarbonate sheet (PC) before modified after contact angle test (embodiment 3)；
Fig. 2 polyethylene (PE) is through different quality than contact angle variation tendency (embodiment 1)；
The variation of Fig. 3 polyethylene (PE) modification front and back color, (a) polyethylene film, (b) POSS/ dopamine (2:1) is modified
Polyethylene film, (c) the only amine-modified polyethylene film of DOPA (embodiment 1).
Specific embodiment
Illustrate the present invention with non-limiting examples below.
Embodiment 1: polyethylene (PE) film (with a thickness of 14 μm) is cleaned 3 times with acetone and EtOH Sonicate respectively, 30min is every
It is secondary, 50 DEG C of dryings.The polyethylene pre-processed (PE) film is immersed in 1.5mg/ml, 120ml trishydroxymethylaminomethane buffering
Solution and anhydrous methanol volume ratio be in the solution of 1:1, and wherein TRIS buffer concentration is 10mM, pH=
8.5, eight aminosilsesquioxane (POSS-NH2X=8, n=2) with the quality of dopamine be 4:1,3:1,2:1,1:1,1:2,1:
3,1:4, soaking time 15h.It is cleaned 3 times with deionized water after the reaction was completed, 50 DEG C of dryings.
Embodiment 2: polytetrafluoroethylene film (PVDF) is cut into the strip that size dimension is 1cm*3cm, with anhydrous second
Alcohol is cleaned by ultrasonic 3 times, and 20min is each, vacuum drying.The polytetrafluoroethylene film that processing is completed is immersed in 3.0mg/ml, 120ml
Trishydroxymethylaminomethane buffer solution and anhydrous methanol volume ratio are in the solution of 3:1, and wherein trishydroxymethylaminomethane is slow
Fliud flushing concentration is the aminosilsesquioxane of 15mM, pH=9.0, eight (POSS-NH2X=8, n=2) quality be 0.24g, dopamine
Content is 0.12g, soaking time 48h.It is cleaned 3 times with deionized water after the reaction was completed, 50 DEG C of vacuum drying.
Embodiment 3: it is 4cm*3cm that polycarbonate sheet (PC), which is cut into size, is cleaned by ultrasonic 3 times with dehydrated alcohol,
20min is each, dry.The polycarbonate sheet (PC) that processing is completed is immersed in 2.0mg/ml, 120ml trishydroxymethylaminomethane
Buffer solution and anhydrous methanol volume ratio be in the solution of 4:1, and wherein TRIS buffer concentration is 5mM, pH=
8.5, eight aminosilsesquioxane (POSS-NH2X=8, n=2) quality be 0.10g, the content of dopamine is 0.10g, when immersion
Between for for 24 hours.It is cleaned 3 times with deionized water after the reaction was completed, 30 DEG C of vacuum drying.
Embodiment 4: it is 4cm*10cm by polypropylene (PP) film (with a thickness of 14 μm) size, uses acetone and ethyl alcohol respectively
Ultrasonic cleaning 3 times, 30min is each, 50 DEG C of vacuum drying.Polypropylene (PP) film that processing is completed is immersed in 0.5mg/ml,
120ml trishydroxymethylaminomethane buffer solution and dehydrated alcohol volume ratio be in the solution of 2:1, wherein trihydroxy methyl amino first
Alkane buffer concentration is that the quality of the sulfydryl of 5mM, pH=6.5, eight silsesquioxane (POSS-SHx=8, n=2) is 0.03g, dopamine
Content be 0.03g, soaking time be for 24 hours.It is cleaned 3 times with deionized water after the reaction was completed, 55 DEG C of vacuum drying.
Embodiment 5: it is 4cm*3cm that polycarbonate sheet (PC), which is cut into size, is cleaned by ultrasonic 3 times with dehydrated alcohol,
20min is each, vacuum drying.Side PC plate is wrapped up with brown seamless adhesive tape.By treated, PC plate is immersed in 2.0mg/ml,
100ml trishydroxymethylaminomethane buffer solution and anhydrous methanol volume ratio be in the solution of 1:1, wherein trihydroxy methyl amino first
Alkane buffer concentration is the aminosilsesquioxane of 10mM, pH=8.5, eight (POSS-NH2X=8, n=2) quality be 0.10g, DOPA
The content of amine is 0.10mg, soaking time 48h.It is respectively washed 3 times with deionized water and ethyl alcohol after the reaction was completed, 40 DEG C of bakings
It is dry.
Embodiment 6: it is 3cm*5cm that polyfluortetraethylene plate (PVDF), which is cut into size, with dehydrated alcohol ultrasonic cleaning 3
Secondary, 20min is each, vacuum drying.By treated, PVDF plate is immersed in 3.0mg/ml, and 200ml trishydroxymethylaminomethane is slow
It rushes in the solution that solution and anhydrous methanol volume ratio are 1:1, wherein TRIS buffer concentration is 10mM, pH=
8.5, the quality of eight aminosilsesquioxanes (POSS-SHx=8, n=2) is 0.10g, and the content of dopamine is 0.10mg, when immersion
Between be 72h.It is respectively washed 3 times with deionized water and ethyl alcohol after the reaction was completed, 65 DEG C of dryings.
Embodiment 7: polyethylene (PE) film (with a thickness of 12 μm) is cleaned 3 times with acetone and EtOH Sonicate respectively, 30min is every
It is secondary, 50 DEG C of dryings.The polyethylene pre-processed (PE) film is immersed in 2.0mg/ml, 120ml trishydroxymethylaminomethane buffering
In solution, wherein TRIS buffer concentration is the aminosilsesquioxane of 10mM, pH=8.5, eight (POSS-NH2
X=8, n=2) it with the quality of dopamine is 1:1, soaking time is for 24 hours.It is cleaned 3 times with deionized water after the reaction was completed, 50 DEG C dry
It is dry.
Fig. 1, the contact angle of rear polycarbonate plate surface reduces before modified, and surface can reduce, more hydrophilic；Fig. 2 can be seen
The contact angle of modified polyolefin surfaces is substantially reduced out.Fig. 3 (a) polyethylene film, (b) POSS/ dopamine (2:1) modification is poly-
Vinyl film, (c) the only amine-modified polyethylene film of DOPA.After introducing POSS, polyethylene film can keep certain translucency.
Claims (4)
1. a kind of preparation method of the modified polymeric base material in silsesquioxane surface, it is characterised in that this method is will to gather
Object substrate is closed to be cleaned with acetone and EtOH Sonicate respectively, it is dry, obtain pretreated polymeric substrate；By silsesquioxane and
It is 1mM~15mM that dopamine, which is dissolved in concentration, is prepared at double in the trishydroxymethylaminomethane buffer solution that pH value is 6.5~9.5
The total concentration of half siloxanes and dopamine is the reaction solution of 0.5~3.0mg/ml；Then pretreated polymeric substrate is soaked
12h~72h is not submerged in the reaction solution, and spontaneous carry out Michael's addition is realized that monolayer interface improves interface polarity, done
It is dry to get the polymeric base material modified to silsesquioxane surface；The substrate material surface change in polarity, shows as parent
Water, appearance color are deepened；The structural formula of the silsesquioxane are as follows:
Wherein R1-R8ForN be 0~
4；The mass ratio of the silsesquioxane and dopamine is 1:4~4:1.
2. the preparation method of the modified polymeric base material in silsesquioxane surface according to claim 1, feature
It is the polymeric substrate are as follows: polyethylene, polypropylene porous membrane, polypropylene, polyethylene/polypropylene composite materials are porous thin
Film, polycarbonate plate or polytetrafluoroethylene film.
3. the preparation method of the modified polymeric base material in silsesquioxane surface according to claim 1, feature
It is in the buffer also added with organic solvent, the volume ratio of the buffer and organic solvent are as follows: 1:1~4:1.
4. the preparation method of the modified polymeric base material in silsesquioxane surface according to claim 3, feature
It is the organic solvent are as follows: dehydrated alcohol or anhydrous methanol.
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| WO2018035481A1 (en) * | 2016-08-19 | 2018-02-22 | University Of Massachusetts | Nanoporous structures and assemblies incorporating the same |
| CN115467163B (en) * | 2022-09-29 | 2023-12-08 | 淮阴工学院 | Preparation method of surface antistatic fiber fabric |
| CN116836087B (en) * | 2023-07-03 | 2024-10-01 | 征鸿诺瓦医疗科技(深圳)有限公司 | Preparation method of medical consumable substrate surface functionalized coating |
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| CN101180404A (en) * | 2005-04-22 | 2008-05-14 | 杂混复合塑料公司 | Biomimetic materials comprising polyhedral oligomeric silsesquioxanes |
| CN104382673A (en) * | 2014-11-17 | 2015-03-04 | 温州医科大学 | Artificial lens with polyhedral oligomeric silsesquioxane-modified surface and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101180404A (en) * | 2005-04-22 | 2008-05-14 | 杂混复合塑料公司 | Biomimetic materials comprising polyhedral oligomeric silsesquioxanes |
| CN104382673A (en) * | 2014-11-17 | 2015-03-04 | 温州医科大学 | Artificial lens with polyhedral oligomeric silsesquioxane-modified surface and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| Improved space survivability of polyhedral oligomeric silsesquioxane (POSS) polyimides fabricated via novel POSS-diamine;Xing-Feng Lei, et al.;《Corrosion Science》;20141022;第90卷;第223-238页 * |
| Mesoporous silica xerogel modified with bridged ionic silsesquioxane used to immobilize copper tetrasulfonated phthalocyanine applied to electrochemical determination of dopamine;Monique Deon, et al.;《J Solid State Electrochem》;20141203;第19卷;第2095-2105页 * |
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