CN113980228A - Macromolecular surface modifier and synthetic method thereof - Google Patents

Macromolecular surface modifier and synthetic method thereof Download PDF

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CN113980228A
CN113980228A CN202111189160.1A CN202111189160A CN113980228A CN 113980228 A CN113980228 A CN 113980228A CN 202111189160 A CN202111189160 A CN 202111189160A CN 113980228 A CN113980228 A CN 113980228A
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hydroxyl
macromolecular
surface modifier
macromolecular surface
segment
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钟嘉伦
陈顺权
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Guangzhou Institute Of Advanced Technology
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633Compounds of group C08G18/42
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/44Polycarbonates
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4854Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6576Compounds of group C08G18/69
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666Compounds of group C08G18/48 or C08G18/52
    • C08G18/667Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
    • C08G18/69Polymers of conjugated dienes

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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)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention relates to a macromolecular surface modifier and a synthesis method thereof. The macromolecular surface modifier is composed of (A) a hydroxyl-containing base segment, (B) an isocyanate-containing segment and (G) a surface active group, and n is an integer of from 1 to 10. The macromolecular surface modifier is prepared by reacting a molecule containing isocyanate functional groups with a molecule containing hydroxyl functional groups through the action of an organic metal catalyst. The macromolecular surface modifier synthesized by the method has the molecular weight of 1000-10000, has higher thermal stability and better affinity with other macromolecular organic materials.

Description

Macromolecular surface modifier and synthetic method thereof
Technical Field
The invention relates to the technical field of polymer synthesis, in particular to a macromolecular surface modifier and a synthesis method thereof.
Background
At present, as the requirements on the hydrophobic, oleophobic, hydrophilic and lipophilic properties of the surface of the material are increased, for example, blood product packaging materials or flow guide materials, materials which are in contact with body fluid and have the effects of resisting bacteria and infection, materials which are in contact with the body fluid and need to reduce the surface energy, materials which can block toxic substances such as organic solvents, aldehyde ketones and the like, materials which can increase the liquid permeability, materials which can increase the oil absorption property and the like; these materials are used in particular in medical garments, protective clothing, thermoplastic films, thermoplastic fibers, face masks, laboratory clothing, blood permeable membranes, virus filtration membranes, gas exchange membranes, etc. However, most matrix materials do not have specific surface hydrophobic, oleophobic, hydrophilic and oleophilic properties, and therefore, a macromolecular surface modifier needs to be added for modification.
The macromolecular surface modifier is a polymer with the molecular weight of more than 1000, and compared with the micromolecular modifier, the macromolecular surface modifier has the advantages of multiple structures, controllable molecular weight, various functional groups, functional diversity and the like. In recent years, due to the potential industrial and commercial utility of macromolecular surface modifiers, the development of macromolecular surface modifiers of different types and structures has been pursued and extensively studied by researchers as an industrially important raw material.
Common polymerization modes of the conventional macromolecular surface modifier include ring-opening polymerization, Group Transfer Polymerization (GTP), Atom Transfer Radical Polymerization (ATRP) and reversible addition fragmentation-chain transfer polymerization (RAFT). Wherein, the atom transfer radical polymerization can effectively control the reaction process and design the required molecular structure and molecular weight. The ATRP reaction is suitable for various monomers, has mild reaction conditions, and is convenient to operate and the like. In practical application, the molecules can be designed, and substances with different hydrophilicity/hydrophobicity, polarity/non-polarity and the like can be combined together to adapt to different environments. At the same time, the copolymerization or grafting of macromolecules is carried out to achieve the purpose of molecular design, so that the product has different properties for different substances, namely, the interfacial activity of reactants is changed, and certain substances with poor solubility can be better dissolved with the reactants.
In the known prior art, invention CN103131079B discloses a microporous membrane and a battery separator containing the same. The microporous membrane takes polyolefin as a main raw material, and macromolecular surface modifiers are dispersed in the microporous membrane; one end of the macromolecular surface modifier is provided with a polyolefin chain segment which is hydrophilic to a matrix, and the other end is provided with a polyester or polyether block or graft chain segment which is electrophilic electrolyte. The macromolecular surface modifier is mainly polyolefin-polyester or polyether triblock copolymer, but the structure of the macromolecular surface modifier is different from that of the macromolecular surface modifier containing a hydroxyl chain segment, an isocyanate chain segment and a surface active group, and the application field of the macromolecular surface modifier is different.
The invention CN1970649B discloses a macromolecular surface modifier for modifying ceramic nanometer surfaces, which is an oligomer with the molecular weight of 3000-9000 and is obtained by the free radical initiated copolymerization of monomers such as (methyl) acrylic esters, vinyl siloxane and (methyl) acrylic acid, maleic anhydride, styrene, vinyl acetate, acrylonitrile and the like in an organic solvent. The macromolecular surface modifier is also different from the molecular structure related to the invention, the invention is free radical initiated copolymerization in the synthesis method, and the invention is functional group polymerization in Atom Transfer Radical Polymerization (ATRP) and has different application fields.
Disclosure of Invention
In view of the above, it is necessary to provide a novel macromolecular surface modifier and a synthesis method thereof by applying a functional group polymerization method to polymer materials, especially medical materials, medical instruments, membrane materials and the like. The macromolecular surfactant disclosed by the invention is particularly applied to the fields of medical materials, medical instruments, membrane materials and the like, and has excellent thermal stability.
In order to achieve the purpose, the invention adopts the following technical scheme:
a macromolecular surface modifying agent comprising the following structure (1):
G-[B-A]n-B-G (1)
wherein:
a is a hydroxyl-containing backbone segment;
b is an isocyanate group-containing segment;
g is a surface active group;
n is an integer of 1 to 10.
Further, the hydroxyl-containing matrix segment comprises poly (ethylene glycol hydroxy-terminated adipate); polydiallyl phthalate; hydroxyl-terminated polybutadiene; poly (diethylene glycol) adipic acid; poly (hexamethylene carbonate) diol; poly (ethylene-co-1, 2-butene) glycol; hydroxy-terminated polytetramethylene ether; hydroxyl-terminated hydrogenated polybutadiene; 1, 6-hexanediol phthalic anhydride polyester polyol; one or more of poly (2, 2-dimethyl-1, 3-propyl carbonate).
Further, the isocyanate group-containing segment includes isophorone diisocyanate; tetramethylxylylene diisocyanate; dicyclohexylmethane diisocyanate; hexamethylene diisocyanate; one or more of trimeric isophorone diisocyanate.
Further, the surface active group comprises alkyl monoalcohol of C1-C15; fluorinated alkyl mono-alcohols of C1 to C15; C1-C15 alkyl polyol; fluorinated alkyl polyols of C1-C15; C1-C15 alkylamine; one or more of C1-C15 fluorinated alkyl amines.
Preferably, in the macromolecular surface modifier, n is 1 or 2.
Further, the macromolecular surface modifier has a molecular weight of 1000-10000.
Further, the molecular weight of the hydroxyl-containing matrix segment A is between 1000 and 3500 Dalton.
Further, the molecular weight of the surface active group G is between 100 and 1500 daltons.
A method for synthesizing a macromolecular surface modifier comprises the following steps:
s1, respectively dissolving a hydroxyl-containing matrix chain segment A, an isocyanate-containing chain segment B and a catalyst in a solvent;
s2, mixing and reacting a hydroxyl-containing matrix chain segment A, an isocyanate-containing chain segment B and a catalyst solution under a nitrogen atmosphere and under anhydrous conditions at a certain temperature;
s3, adding the surface active group G into the mixed material in the S2 under the nitrogen atmosphere, mixing and reacting.
Further, the catalyst of S1 is an organometallic catalyst.
Preferably, the metal catalyst comprises one or more of an organic tin catalyst, an organic bismuth catalyst and an organic zinc catalyst.
Further, the solvent described in S1 is an organic high boiling point solvent.
Preferably, the organic high boiling point solvent comprises one or more of dimethylacetamide, dimethylsulfoxide, toluene, dimethylformamide and chlorobenzene.
Further, the temperature of S2 is 50-80 ℃.
When the temperature is too low as in S2, the reaction is not complete, and when the temperature is too high, the reaction by-products and polymers increase.
Further, A, B of S2 and the catalyst were mixed for 0.1 to 1 hour.
Further, the reaction time of S2 is 5 to 15 hours.
Further preferably, the reaction time of S2 is 5 to 8 hours.
Further, the temperature at which S3 is added to the surface active group G is 30 to 60 ℃. When the temperature of S3 added to the surface active group G is too low, the reaction is not complete, and when the temperature is too high, the by-products and polymers are increased.
Further, the mixing time of the mixed material of S3 and G was 0.1 to 1 hour. Too short mixing time causes increased side reactions and polymers, and too long mixing time causes decreased reaction efficiency and prolonged completion time.
Further, the reaction time of S3 is 12 to 20 hours.
Further, the molar ratio of the hydroxyl group-containing base segment a, the isocyanate group-containing segment B, and the surface active group G is 1: 1-3: 1-6.
The content of the catalyst is 1-10 wt% of the hydroxyl matrix chain segment A.
Further, the method comprises the steps of adding a poor solvent into the material obtained after the S3 reaction to precipitate a product, filtering, washing and drying to obtain the product.
Further, the poor solvent comprises one or more of water, methanol, ethanol and acetonitrile.
Further, the cleaning agent used for cleaning comprises one or more of tetrahydrofuran, methanol, water, ethanol, ethylene diamine tetraacetic acid, sodium ethylene diamine tetracetate, acetonitrile and acetone.
The invention has the beneficial effects that:
(1) provides a general skeleton of a macromolecular surface modifier, which can be connected with groups with different surface properties.
(2) Provides a high-efficiency and high-selectivity synthetic method of the target macromolecular surface modifier, so that the synthetic process is controllable and the target product is obtained.
(3) The synthesized macromolecular surface modifier not only obtains better substrate material affinity, but also has good thermal stability. The macromolecular surface modifying agent may have a pyrolysis temperature of at least 200 ℃.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further clearly and completely described below with reference to the embodiments of the present invention. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
All vessels used for the synthesis of macromolecular surface-modifying agents were thoroughly dried at 110 ℃. A1000 ml glass-dried three-necked flask was charged with 72mmol of hydroxy-terminated poly (2, 2-dimethyl-1, 3-propyl carbonate), and the contents of the vessel were thoroughly purged with ultrapure nitrogen to dry and remove water overnight. 525ml of dimethylacetamide was measured out using a 1000ml measuring cylinder, sealed with a rubber stopper, and the solvent was pushed with ultrapure nitrogen. Dimethylacetamide was pushed into a three-necked flask with a double-ended needle to be miscible with hydroxy-terminated poly (2, 2-dimethyl-1, 3-propyl carbonate) and stirred uniformly. The temperature was maintained at 65-70 ℃ while stirring. To a 250ml glass-dried three-necked flask was added 151mmol of isophorone diisocyanate. 150ml of dimethylacetamide was measured out using a 250ml measuring cylinder, sealed with a rubber stopper and pushed with ultrapure nitrogen into the solvent. Dimethyl acetamide is pushed into a three-neck flask by a double-ended needle to be mixed and dissolved with isophorone diisocyanate and stirred uniformly. To a 50ml glass dried round bottom flask was added 8g (10% w/w weight of the hydroxyl terminated starting material) of organotin reagent, 26ml of dimethylacetamide was measured out using a 50ml graduated cylinder, sealed with a rubber stopper, and the solvent was pushed with ultrapure nitrogen. Dimethylacetamide was pushed into a round bottom flask with a double ended needle to be miscible with the organotin reagent and stirred uniformly. The solution containing isophorone diisocyanate was pushed through a double-ended needle with nitrogen into the solution containing hydroxyl terminated poly (2, 2-dimethyl-1, 3-propyl carbonate), followed immediately by the addition of the solution containing organotin reagent. The mixture system was stirred uniformly and maintained at 70 ℃ for 5 hours.
In another 50ml dry round bottom flask was added 180mmol perfluoropentanol, sealed with a rubber stopper and the reagent was pushed in with ultra pure nitrogen. Perfluoropentanol was added to the mixture system through a double-ended needle, and the mixture system was kept under uniform stirring at 45 ℃ for 18 hours. Finally synthesizing the macromolecular surface modifier A. The system was cooled to room temperature and was a milky white turbid liquid. Distilled water is added to the turbid solution to generate precipitate, and the precipitate is washed with isopropanol/ethylene diamine tetraacetic acid solution to remove unreacted raw materials, catalyst and solvent. Gradually heating and vacuum drying in an oven at 40-120 deg.C. The final product is obtained.
The structural formula of the macromolecular surface modifier A is as follows:
Figure BDA0003300503970000061
example 2
The procedure was as in example 1 using 74mmol of hydroxyl-terminated polybutadiene, 115mmol of isophorone diisocyanate, 111.18mmol of perfluoropentanediol, 5% w/w of an organozinc catalyst and anhydrous toluene as solvent. Adding methanol into the turbid solution after reaction to generate precipitate, and washing the precipitate with tetrahydrofuran/ethylene diamine tetraacetic acid solution to remove unreacted raw materials, catalyst and solvent. Gradually heating and vacuum drying in an oven at 40-120 deg.C. Obtaining the final product macromolecular surface modifier B.
The structural formula of the macromolecular surface modifier B is as follows:
Figure BDA0003300503970000062
example 3
The procedure is as in example 1, using 100mmol of hydroxy-terminated poly (2, 2-dimethyl-1, 3-propyl carbonate), 155mmol of dicyclohexylmethane diisocyanate, 125mmol of perfluorooctanol, 8% w/w of an organobismuth catalyst and dimethylacetamide as solvent. Obtaining the macromolecular surface modifier C which is the final product of the solid.
The structural formula of the macromolecular surface modifier C is as follows:
Figure BDA0003300503970000071
example 4
The procedure was as in example 1 using 84.8mmol of hydroxyl-terminated hydrogenated polybutadiene, 131.42mmol of trimeric isophorone diisocyanate, 254.36mmol of perfluorodecanol, 3% w/w of organotin catalyst and anhydrous toluene as solvent. Adding methanol into the turbid solution after reaction to generate precipitate, and washing the precipitate with tetrahydrofuran/ethylene diamine tetraacetic acid solution to remove unreacted raw materials, catalyst and solvent. Gradually heating and vacuum drying in an oven at 40-120 deg.C. Obtaining the final product macromolecular surface modifier D.
The structural formula of the macromolecular surface modifier D is as follows:
Figure BDA0003300503970000072
example 5
The procedure was as in example 1, using 4mmol of hydroxy terminated polytetramethylene ether, 8.4mmol of hexamethylene diisocyanate, 10mmol of dimethylbutylene glycol, 6% w/w of organobismuth catalyst and dimethylformamide as the reagent. Obtaining the final product macromolecular surface modifier E.
The structural formula of the macromolecular surface modifier E is as follows:
Figure BDA0003300503970000073
example 6
And carrying out thermogravimetric analysis on the five synthesized macromolecular surface modifiers. 2-10mg of the sample was loaded into an aluminum pan. The temperature range is from room temperature to 500 ℃, the heating rate is 50 ℃/min, and the temperature is 10 ℃/min when the temperature is close to the decomposition temperature. The test results are shown in the following table:
TABLE 1 thermogravimetric test results of macromolecular surface modifiers
Name (R) Td1/℃ Td2/℃ Appearance of the product
Macromolecular surface modifier A 284 354 White amorphous solid
Macromolecular surface modifier B 288 379 Colorless transparentMing semi-solid
Macromolecular surface modifier C 326 401 White waxy solid
Macromolecular surface modifier D 283 407 White solid
Macromolecular surface modifier E 229 353 Colorless transparent semisolid

Claims (10)

1. A macromolecular surface modifying agent characterized by comprising the following structure (1):
G-[B-A]n-B-G (1) wherein:
a is a hydroxyl-containing backbone segment;
b is an isocyanate group-containing segment;
g is a surface active group;
n is an integer of 1 to 10.
2. The macromolecular surface-modifying agent according to claim 1, characterized in that the molecular weight of the hydroxyl-containing matrix segment A is between 1000 and 3500 daltons.
3. The macromolecular surface-modifying agent according to claim 1, characterized in that the molecular weight of the surface-active group G is between 100 and 1500 daltons.
4. The macromolecular surface-modifying agent according to claim 1,
the hydroxyl-containing matrix chain segment comprises poly (ethylene glycol adipate) with hydroxyl end; polydiallyl phthalate; hydroxyl-terminated polybutadiene; poly (diethylene glycol) adipic acid; poly (hexamethylene carbonate) diol; poly (ethylene-co-1, 2-butene) glycol; hydroxy-terminated polytetramethylene ether; hydroxyl-terminated hydrogenated polybutadiene; 1, 6-hexanediol phthalic anhydride polyester polyol; one or more of poly (2, 2-dimethyl-1, 3-propyl carbonate); the chain segment containing the isocyanate group comprises isophorone diisocyanate; tetramethylxylylene diisocyanate; dicyclohexylmethane diisocyanate; hexamethylene diisocyanate; one or more of trimeric isophorone diisocyanate;
the surface active group comprises alkyl monoalcohol of C1-C15; fluorinated alkyl mono-alcohols of C1 to C15;
C1-C15 alkyl polyol; fluorinated alkyl polyols of C1-C15; C1-C15 alkylamine; one or more of C1-C15 fluorinated alkyl amines.
5. A method for synthesizing a macromolecular surface modifier is characterized by comprising the following steps:
s1, respectively dissolving a hydroxyl-containing matrix chain segment A, an isocyanate-containing chain segment B and a catalyst in a solvent;
s2, mixing and reacting a hydroxyl-containing matrix chain segment A, an isocyanate-containing chain segment B and a catalyst solution under a nitrogen atmosphere and under anhydrous conditions at a certain temperature;
s3, adding the surface active group G into the mixed material in the S2 under the nitrogen atmosphere, mixing and reacting.
6. The method for synthesizing macromolecular surface modifier according to claim 5, characterized in that said catalyst S1 is an organometallic catalyst.
7. The method for synthesizing macromolecular surface modifier according to claim 5, characterized in that the solvent of S1 is organic high-boiling solvent.
8. A method for synthesizing a macromolecular surface modifying agent according to claim 5, wherein the molar ratio of the hydroxyl-containing base segment A, the isocyanate-containing segment B, and the surface active group G is 1: 1-3: 1-6.
The content of the catalyst is 1-10 wt% of the hydroxyl matrix chain segment A.
9. The method for synthesizing a macromolecular surface modifier according to claim 5, further comprising adding a poor solvent to the material after the S3 reaction to precipitate the product, filtering, washing, and drying to obtain the product.
10. The method for synthesizing a macromolecular surface modifier according to claim 9, wherein said poor solvent comprises one or more of water, methanol, ethanol, and acetonitrile.
CN202111189160.1A 2021-10-12 2021-10-12 Macromolecular surface modifier and synthetic method thereof Pending CN113980228A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6127507A (en) * 1995-08-03 2000-10-03 Santerre; Paul J. Fluoroligomer surface modifiers for polymers and articles made therefrom
US20080228253A1 (en) * 2006-12-14 2008-09-18 Sanjoy Mullick Surface modifying macromolecules with high degradation temperatures and uses thereof
CN102203153A (en) * 2008-08-28 2011-09-28 界面生物公司 Thermally stable biuret and isocyanurate based surface modifying macromolecules and uses thereof
CN107709615A (en) * 2015-06-26 2018-02-16 Dic株式会社 Surface of steel plate inorganic agent and the steel plate with its film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6127507A (en) * 1995-08-03 2000-10-03 Santerre; Paul J. Fluoroligomer surface modifiers for polymers and articles made therefrom
US20080228253A1 (en) * 2006-12-14 2008-09-18 Sanjoy Mullick Surface modifying macromolecules with high degradation temperatures and uses thereof
CN102203153A (en) * 2008-08-28 2011-09-28 界面生物公司 Thermally stable biuret and isocyanurate based surface modifying macromolecules and uses thereof
CN107709615A (en) * 2015-06-26 2018-02-16 Dic株式会社 Surface of steel plate inorganic agent and the steel plate with its film

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