Summary of the invention
The object of the invention is: for the technical deficiency in the chromatographic fractionation effect of above-mentioned combination flooding and polymer synthesis process, provide and there is better tackifying and compared with fluorine-containing hydrophobic association polyacrylamide of the one of low surface tension and preparation method thereof simultaneously.
In order to achieve the above object, a kind of fluorine-containing hydrophobic association surfactivity polyacrylamide, has following molecular structure:
Wherein, x=100, y=10-20, z=0.05-1.5, n=4,6,8, R, R ' is alkyl.
A preparation method for fluorine-containing hydrophobic association surfactivity polyacrylamide, specifically comprises the following steps:
The first step: the synthesis of surfactivity fluorine-containing polymerisable macromolecule monomer HAPS
1., the synthesis of N-dialkyl group perfluorinated alkyl sulfonamide
Organic amine, triethylamine and organic solvent are uniformly mixed, then add perfluoroalkyl sulfonyl fluoride, be then warming up to 30 ~ 60 DEG C, continue reaction 4 ~ 10h; Reaction mixture obtains product N-dialkyl group perfluorinated octyl sulfuryl amine through washing, drying, underpressure distillation.
Wherein, raw materials used mol ratio is as follows:
Perfluoroalkyl sulfonyl fluoride: organic amine: triethylamine is 1:1 ~ 2:1.2 ~ 2;
Preferably, described washing successively through washing, 0.5% aqueous hydrochloric acid washes, saturated common salt washing, drying anhydrous sodium sulphate;
Preferably, described organic amine is one or more in dimethylamine, diethylamine, dipropyl amine, Di-n-Butyl Amine, methylethyl amine;
Preferably, described organic solvent is one or more in toluene, Virahol, isopropyl ether, acetone or dimethylbenzene;
Preferably, described perfluoroalkyl sulfonyl fluoride is one or more in perfluoro butyl sulfonic acid fluoride, perfluoro hexyl sulfonic acid fluoride, full-fluorine octyl sulfuryl fluoride.
2., the synthesis of β-chloroacrylic acid hydroxypropyl acrylate
By Propylene glycol monoacrylate and organic solvent mixing, 20 ~ 35 DEG C, pass into condition of nitrogen gas under, add thionyl chloride, under 40 DEG C ~ 60 DEG C conditions react 4 ~ 10h; Cooling, washing, drying, underpressure distillation obtains β-chloroacrylic acid hydroxypropyl acrylate;
Wherein, raw materials used mol ratio is as follows:
Propylene glycol monoacrylate: thionyl chloride is 1:1.5 ~ 2;
Described organic solvent is one or more in Virahol, acetone, methylene dichloride, pyridine or tetrahydrofuran (THF);
Adopt NaOH solution washing to neutral during washing; Drying anhydrous sodium sulphate.
3., the synthesis of macromonomer HAPS
By N-dialkyl group perfluorinated alkyl sulfonamide, organic solvent mixing, under passing into condition of nitrogen gas, add β-chloroacrylic acid hydroxypropyl acrylate, at 30 ~ 50 DEG C, after reaction 20 ~ 48h, cooling, washing, drying, underpressure distillation obtain surfactivity fluorine-containing polymerisable macromolecule monomer HAPS;
Wherein, raw materials used mol ratio is as follows:
β-chloroacrylic acid hydroxypropyl acrylate: N-dialkyl group perfluorinated alkyl sulfonamide is 1.5 ~ 2:1;
Described washing successively through 0.05%HCl, saturated common salt water washing, drying anhydrous sodium sulphate;
Wherein, described organic solvent is one or more in toluene, Virahol, isopropyl ether, acetone or dimethylbenzene.
Second step: the synthesis of fluorine-containing hydrophobic association polyacrylamide
Add HAPS monomer, AM at configuration pH in the AMPS aqueous solution of 7, control AMPS, AM and HAPS monomer total mass number is 5 ~ 25%, and wherein the mol ratio of AM, AMPS and HAPS monomer is 100:10 ~ 20:0.05 ~ 1.5; Ultrasonic rear stirring, passes into nitrogen, adds the initiator accounting for monomer total mass 0.2% ~ 1%, and control temperature is at 30 ~ 50 DEG C; After reaction 4 ~ 10h, obtain colloidal product, washing, obtains white depositions, dries and pulverizes, obtain fluorine-containing hydrophobic association polyacrylamide;
Ammonium persulphate and the S-WAT of described initiator to be mass ratio be 1:1, or mass ratio is Potassium Persulphate and the sodium bisulfite of 1:1.
A kind of fluorine-containing hydrophobic association surfactivity polyacrylamide and preparation method thereof, its advantage is:
1., fluorine-containing surface active monomer is introduced in the molecule, fluorocarbon chain has extremely strong thermostability and chemical stability, therefore the polyacrylamide synthesized has stronger heat-resisting property, the surface tension of water can be reduced to 24 ~ 32mN/m, all have a good application prospect in tertiary oil recovery, drilling fluid and coating;
2., fluorine carbon hydrophobic grouping has lower internal cohesive energy and surface energy, makes the polymkeric substance synthesized have stronger thickening property and lower surface tension;
3., do not add other tensio-active agent in polymer preparation process, cost is low.
Embodiment
A kind of fluorine-containing hydrophobic association surfactivity polyacrylamide, producing principle is: first synthesis has surface-active fluorine-containing polymerisable macromolecule monomer HAPS, then adopts emulsifier-free emulsion polymerization to obtain fluorine-containing hydrophobic association polyacrylamide HAPS and acrylamide, AMPS.
Below in conjunction with example, the present invention is further illustrated:
Example one
The first step: the synthesis of surfactivity fluorine-containing polymerisable macromolecule monomer HAPS
1., the synthesis of N-dimethyl perfluoro alkyl sulfonamide
0.1mol dimethylamine, 0.08mol triethylamine and 100mL Virahol are joined spherical reflux condensing tube is housed, temperature takes into account in the there-necked flask of agitator, be uniformly mixed, in reaction system, slowly 0.05mol full-fluorine octyl sulfuryl fluoride is dripped by constant pressure funnel, then be warming up to 40 DEG C, continue reaction 6h.Reaction mixture is washed successively, 0.5% aqueous hydrochloric acid is washed, saturated common salt washing, and then use anhydrous sodium sulfate drying, underpressure distillation obtains product N-dimethyl perfluoro octyl group sulphonamide.
2., the synthesis of β-chloroacrylic acid hydroxypropyl acrylate
The Propylene glycol monoacrylate of 0.1mol and 100mL methylene dichloride are joined spherical reflux condensing tube is housed, temperature takes into account in the there-necked flask of agitator, under agitation pass into nitrogen, in reaction system, slowly dripped the thionyl chloride of 0.15mol by constant pressure funnel under 25 DEG C of conditions, after being added dropwise to complete, 8h is reacted, the tail gas alkali liquor absorption produced in reaction process under 40 DEG C of conditions.After having reacted, system is cooled to room temperature, add NaOH solution washing to neutral, anhydrous sodium sulfate drying, underpressure distillation, finally obtains β-chloroacrylic acid hydroxypropyl acrylate.
3., the synthesis of macromonomer HAPS
In there-necked flask, add 0.01molN-dimethyl perfluoro alkyl sulfonamide, 150ml Virahol, vigorous stirring also passes into nitrogen, is slowly added drop-wise in there-necked flask by 0.02mol β-chloroacrylic acid hydroxypropyl acrylate, reacts 28h after dropwising.Cooled by product after having reacted, use 0.05%HCl, saturated common salt water washing respectively, with anhydrous sodium sulfate drying, underpressure distillation obtains surfactivity fluorine-containing polymerisable macromolecule monomer HAPS.
Second step: the synthesis of fluorine-containing hydrophobic association polyacrylamide
Add HAPS monomer, AM at preparation pH in the AMPS aqueous solution of 7, control AMPS, AM and HAPS monomer total mass number is 20%, and wherein the mol ratio of AM, AMPS and HAPS monomer is 100:10:0.1; Rapid stirring after ultrasonic 30min, passes into nitrogen 30min, and add the ammonium persulphate-S-WAT accounting for monomer total mass 0.05% and make initiator, control temperature is at 40 DEG C; After reaction 6h, obtain colloidal product, repeatedly wash on a small quantity with ethanol, obtain white depositions, dry and pulverize, obtain fluorine-containing hydrophobic association polyacrylamide.
Infrared spectrum analysis is carried out to the fluorine-containing hydrophobic association polyacrylamide finally obtained, obtains the infrared spectrum of Fig. 1.
Wherein, 3430.36cm
-1, 3203.91cm
-1place is the N-H stretching vibration peak of acid amides, 1655.15cm
-1for carbonylic stretching vibration absorption peak, 2933.03cm
-1and 2869.6cm
-1place is-CH
2c-H symmetrical stretching vibration peak, 1452.75cm
-1for the flexural vibration of C-H, 1307.91cm
-1for C-N stretching vibration, 1185.18and1115.18cm
-1wei – CF
2, CF
3obtain stretching vibration absorption peak, 1040.49cm
-1wei – SO
3-stretching vibration absorption peak.
The performance evaluation of fluorine-containing surfactants polymkeric substance: the surface-active polymer aqueous solution of preparation 0.2%, the surface tension recording polymkeric substance with JK99B type Full-automatic tension instrument is 30.2mN/m; The viscosity recording polymkeric substance with the BROOKFIELD III type viscometer of Brookfield company of the U.S. is 518.2mpa.s;
Example two
The first step: the synthesis of surfactivity fluorine-containing polymerisable macromolecule monomer HAPS
1., the synthesis of N-diethyl perfluorobutylsulfonamide
0.2mol diethylamine, 0.2mol triethylamine and 100ml isopropyl ether are joined spherical reflux condensing tube is housed, temperature takes into account in the there-necked flask of agitator, be uniformly mixed, in reaction system, slowly 0.1mol full-fluorine octyl sulfuryl fluoride is dripped by constant pressure funnel, then be warming up to 60 DEG C, continue reaction 10h.Reaction mixture is washed successively, 0.5% aqueous hydrochloric acid is washed, saturated common salt washing, and then use anhydrous sodium sulfate drying, underpressure distillation obtains product N-diethyl perfluorobutylsulfonamide.
2., the synthesis of β-chloroacrylic acid hydroxypropyl acrylate
0.5mol Propylene glycol monoacrylate and 150ml acetone are joined spherical reflux condensing tube is housed, temperature takes into account in the there-necked flask of agitator, under agitation pass into nitrogen, under 20 DEG C of conditions, in reaction system, slowly 1mol thionyl chloride is dripped by constant pressure funnel after completing, after being added dropwise to complete, 6h is reacted, the tail gas alkali liquor absorption produced in reaction process under 50 DEG C of conditions.After having reacted, system is cooled to room temperature, add NaOH solution washing to neutral, anhydrous sodium sulfate drying, underpressure distillation, finally obtains β-chloroacrylic acid hydroxypropyl acrylate.
3., the synthesis of macromonomer HAPS
In there-necked flask, add N-diethyl perfluorobutylsulfonamide, the 150ml Virahol of 0.1mol, vigorous stirring also passes into nitrogen, is slowly added drop-wise in there-necked flask by the β-chloroacrylic acid hydroxypropyl acrylate of 0.2mol, reacts 48h after dropwising.Cooled by product, use 0.05%HCl, saturated common salt water washing respectively, with anhydrous sodium sulfate drying, underpressure distillation obtains surfactivity fluorine-containing polymerisable macromolecule monomer HAPS.
Second step: the synthesis of fluorine-containing hydrophobic association polyacrylamide
Add HAPS monomer, AM at preparation pH in the AMPS aqueous solution of 8, control AMPS, AM and HAPS monomer total mass number is 10%, and wherein the mol ratio of AM, AMPS and HAPS monomer is 100:15:1.5; Rapid stirring after ultrasonic 30min, passes into nitrogen 30min, and add the Potassium Persulphate-sodium bisulfite accounting for monomer total mass 0.3% and make initiator, control temperature is at 45 DEG C; After reaction 10h, obtain colloidal product, repeatedly wash on a small quantity with ethanol, obtain white depositions, dry and pulverize, obtain fluorine-containing hydrophobic association polyacrylamide.
The performance evaluation of fluorine-containing surfactants polymkeric substance: the surface-active polymer aqueous solution of preparation 0.4%, the surface tension recording polymkeric substance with JK99B type Full-automatic tension instrument is 23.9mN/m; The viscosity recording polymkeric substance with the BROOKFIELD III type viscometer of Brookfield company of the U.S. is 7429.5mpa.s;
Example three
The first step: the synthesis of surfactivity fluorine-containing polymerisable macromolecule monomer HAPS
1., N-methyl, the synthesis of ethylperfluoro hexyl sulphonamide
The N-methyl ethyl-amine of 0.6mol, the triethylamine of 0.75mol and 150ml acetone are joined spherical reflux condensing tube is housed, temperature takes into account in the there-necked flask of agitator, be uniformly mixed, in reaction system, slowly dripped the perfluoro hexyl sulfonic acid fluoride of 0.4mol by constant pressure funnel; Then be warming up to 35 DEG C, continue reaction 5h.Reaction mixture is washed successively, 0.5% aqueous hydrochloric acid is washed, saturated common salt washing, and then use anhydrous sodium sulfate drying, underpressure distillation obtains product N-methyl, ethylperfluoro hexyl sulphonamide.
2., the synthesis of β-chloroacrylic acid hydroxypropyl acrylate
The Propylene glycol monoacrylate of 0.5mol and the tetrahydrofuran (THF) of 130ml are joined spherical reflux condensing tube is housed, temperature takes into account in the there-necked flask of agitator, under agitation pass into nitrogen, under 25 DEG C of conditions, in reaction system, slowly dripped the thionyl chloride of 0.75mol by constant pressure funnel after completing, after being added dropwise to complete, 80h is reacted, the tail gas alkali liquor absorption produced in reaction process under 50 DEG C of conditions.After having reacted, system is cooled to room temperature, add NaOH solution washing to neutral, anhydrous sodium sulfate drying, underpressure distillation, finally obtains β-chloroacrylic acid hydroxypropyl acrylate.
3., the synthesis of macromonomer HAPS
In there-necked flask, add the N-methyl of 0.1mol, ethylperfluoro hexyl sulphonamide, 80ml Virahol, vigorous stirring also passes into nitrogen, is slowly added drop-wise in there-necked flask by the β-chloroacrylic acid hydroxypropyl acrylate of 0.15mol, reacts 40h after dropwising; Cooled by product, use 0.05%HCl, saturated common salt water washing respectively, with anhydrous sodium sulfate drying, underpressure distillation obtains surfactivity fluorine-containing polymerisable macromolecule monomer HAPS.
Second step: the synthesis of fluorine-containing hydrophobic association polyacrylamide
Add HAPS monomer, AM at preparation pH in the AMPS aqueous solution of 7.5, control AMPS, AM and HAPS monomer total mass number is 25%, and wherein the mol ratio of AM, AMPS and HAPS monomer is 100:20:0.3; Rapid stirring after ultrasonic 30min, passes into nitrogen 30min, and add the Potassium Persulphate-sodium bisulfite accounting for monomer total mass 0.8% and make initiator, control temperature is at 400 DEG C; After reaction 6h, obtain colloidal product, repeatedly wash on a small quantity with ethanol, obtain white depositions, dry and pulverize, obtain fluorine-containing hydrophobic association polyacrylamide.
The performance evaluation of fluorine-containing surfactants polymkeric substance: the surface-active polymer aqueous solution of preparation 0.3%, the surface tension recording polymkeric substance with JK99B type Full-automatic tension instrument is 27.4.2mN/m; The viscosity recording polymkeric substance with the BROOKFIELD III type viscometer of Brookfield company of the U.S. is 3273.3mpa.s;
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.