CN106279473B - A kind of synthetic method of macromolecule boronation polyisobutylene succinamide - Google Patents
A kind of synthetic method of macromolecule boronation polyisobutylene succinamide Download PDFInfo
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Abstract
A kind of synthetic method of macromolecule boronation polyisobutylene succinamide, under the conditions of certain temperature, polyisobutene and maleic anhydride carry out the hot addition reaction of block, generate polyisobutenyl succinic anhydride；Macromolecule polyisobutenyl succinic anhydride is reacted with polyamines polyene, generates polyisobutylene succinamide and water, is then steamed the water of generation through depressurizing again, is then carried out boronation with boric acid, obtain product.Advantage is: rational technology, safety and environmental protection is easy to operate, and maleic anhydride conversion rate is high, good product performance, is suitble to industrialized production.
Description
Technical field
The present invention relates to a kind of synthetic methods of macromolecule boronation polyisobutylene succinamide.
Background technique
Polyisobutylene succinamide (i.e. ashless dispersant) is a kind of widely used lube oil additive, excellent with its
Good oil-soluble, excellent low temperature dispersity solve the peace and quiet insurmountable low temperature greasy filth the dispersion of dispersion of metal mold, together
Bright to have High Temperature Disperse performance and good compatibility, and ZDDP and other additives are adjustable produces various high-grade internal combustion engines
Oil is one of the host agent of modulation top grade and the top I. C. engine oil in the world.Also it is widely used in the quick-fried emulsion industry of the people simultaneously.In
Between product alkene acid anhydride be also other chemical products raw material.
The different polyisobutylene succinamide of polyphosphazene polymer, except the oil for keeping polyisobutylene succinamide excellent is molten
Property, excellent low temperature dispersity solves the peace and quiet insurmountable low temperature greasy filth the dispersion of dispersion of metal mold, while having height
Outside warm dispersion performance and good compatibility, with its good viscosity-temperature characteristics and film strength, at home and abroad top-grade lubricating oil,
Especially it is used widely in heavy-duty oil.
Currently, macromolecule polyisobutylene succinamide is under certain condition, to make to gather using directly hot adduction technique
Isobutene and maleic anhydride hydrocarbonylation adduction obtain macromolecule polyisobutenyl succinic anhydride (abbreviation alkene acid anhydride), and alkene acid anhydride is more with polyenoid again
Amine carries out aminating reaction, generates the different polyisobutenyl imidodicarbonic diamide of polyphosphazene polymer.This method have to consersion unit it is of less demanding,
The reaction process advantage low without using chlorine, chlorinity, still, this method is higher to the Active pharmaceutical of reaction raw materials, and gathers
Isobutene conversion is lower, and not exclusively, product yield is low for reaction.
Studies have shown that boron modification macromolecule polyisobutylene succinamide, had both been able to maintain polyphosphazene polymer isobutenyl fourth
The original good characteristic of imidodicarbonic diamide, and the detergent-dispersant additive with antibacterial abrasion resistance, boric acid can be with the anaerobism in lubricating oil
Bacterium plays the service life that good resistancing action extends lubricating oil, at the same boron molecule in lubricating oil with half glue spherical particle
In the presence of.In the reciprocating motion of piston, a kind of particle membrane of hemicolloid spherical particle is formed between piston ring casing wall, is reduced
Piston during exercise plays the role of the direct friction of cylinder body wear-resistant.Simultaneously because the rolling of hemicolloid spherical particle changes work
Friction mode between plug and casing wall, becomes multiple spot friction from original linear friction, reduces frictional resistance and the resistance of start,
Achieve the purpose that energy-saving.Therefore, boron modification type ashless dispersant macromolecule boronation polyisobutylene succinamide
Synthetic method is current focus on research direction.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of rational technology, safety and environmental protection, and polyisobutenyl succinic acid
Acid anhydride conversion ratio is good, can be used as the synthetic method for the macromolecule boronation polyisobutylene succinamide that lube oil additive uses.
The technical problem to be solved by the present invention is
A kind of synthetic method of macromolecule boronation polyisobutylene succinamide, the specific steps of which are as follows:
(1), block adduction
Under the conditions of certain temperature, polyisobutene and maleic anhydride carry out the hot addition reaction of block, generate polyisobutenyl
Succinic anhydride；The polyphosphazene polymer isobutene of 0.2mol is added in the four-hole bottle that band stirs, installs cooling tube, then by 0.1mol
Low molecular weight polyisobutenyl succinic anhydride as initiator be added four-hole bottle in, the polyisobutenyl of the low molecular weight
The molecular weight of succinyl acid anhydride is 1000-1300, while being warming up to 220 DEG C, after stirring 30 minutes, starts to be added dropwise into four-hole bottle
The maleic anhydride of 0.6mol melted, after time for adding maintains -5 hours 3 hours, 30 minutes, by remaining 0.3mol high
Molecule polyisobutene is added in bottle, and the molecular weight of the polyphosphazene polymer isobutene is 2300-2500, maintain the temperature at 220 DEG C-
230 DEG C, continue to drip remaining maleic anhydride, 220 DEG C -230 DEG C is maintained the temperature at after whole completion of dropwise addition, constant temperature 10 is small
When -12 hours, obtain macromolecule polyisobutenyl succinic anhydride；
(2) amination
Macromolecule polyisobutenyl succinic anhydride is reacted with polyamines polyene, generates polyisobutylene succinamide and water,
Then the water for steaming generation through depressurizing again, obtains product using filter；
Macromolecule polyisobutenyl succinic anhydride imports amination kettle, and base oil is added and is diluted, base oil additional amount is answered
To guarantee product viscosity >=300 centistokes(cst)s, macromolecule polyisobutenyl succinic anhydride total weight 3.0%-3.15% polyenoid is more with accounting for
Amine synthesis under normal pressure, control temperature are reacted 2 hours at 80 DEG C -140 DEG C, polyisobutylene succinamide and water are generated, through subtracting
Pressure steams water, filters, obtains polyisobutylene succinamide；
(3) boronation
By polyisobutylene succinamide, or without dehydration purification polyisobutylene succinamide, with boric acid into
Then row boronation steams water through decompression again, collect and obtain macromolecule boronation polyisobutenyl fourth using filter as recycle-water
Imidodicarbonic diamide.
When boronation is reacted, the molar ratio of the polyisobutylene succinamide and boric acid is 1:1-1:2, and reaction temperature is
80 DEG C of -140 DEG C of reaction time are 2 hours.
Before carrying out boronation reaction, immersion boric acid is carried out with the recycle-water that the reaction vacuum distillation of step (3) boronation obtains, it is described
The mass ratio of boric acid and recycle-water is 1:1, so that the polarity of boric acid is activated, boric acid conversion ratio can improve very big.
Sample detection is dissociated maleic anhydride content, acid value and viscosity, MA≤0.6%, acid value >=85KOHmg/g, and viscosity >=
3500 centistokes(cst)s all turn amination after qualification.
The polyamines polyene is diethylenetriamine, triethylene tetramine, tetraethylenepentamine or pentaethylene hexamine.
When aminating reaction, reaction temperature is 120 DEG C -130 DEG C.
The base oil is 150SN base oil.
Beneficial effects of the present invention:
(1) raw material is polyisobutene, maleic anhydride and polyamines polyene, and raw material is easy to get, and manufacturer is numerous, and raw material sources are wide
It is general；
(2) the hot addition reaction of block generates polyisobutenyl succinic anhydride, mainly utilizes the polyisobutene of low molecular weight
Base succinyl acid anhydride end alkene molecule wave living promotes the addition reaction with polyphosphazene polymer isobutene and maleic anhydride, solution as initiator
Having determined, macromolecule polyisobutene molecular weight is big, and viscosity is big, and activity is low, is not easy to react, and material reaction is incomplete, transparency muddiness
Problem；Greatly improve maleic anhydride conversion rate；
(3) easy to operate, 80-140 DEG C is controlled after amination, is slowly added to the boric acid impregnated and is carried out boronation, part is returned
Boric acid is impregnated with next time, the evaporation loss of circulating water pool supplement circulating water pool is added in remaining, and entire reaction is not needed using solvent
Or fatty alcohol, solve other with solvent or the production exhaust gas of fatty alcohol, waste water, the high problem of COD content.
Detailed description of the invention
Fig. 1 is to utilize (corresponding embodiment 4) block adduction of the invention and the direct adduction synthesizing polyisobutylene base of conventional method
The maleic anhydride synthetic ratio curve graph of succinic anhydride.
Specific embodiment
Embodiment
Raw material selection:
1, polyisobutene (PIB)
A: density: 0.855-0.900g/cm3；
B: viscosity (100 DEG C) >=500 centistokes(cst)s；
C: molecular weight: 2300-2500；
D: flash-point >=160 DEG C；
E: moisture: 0.03%
F: appearance: water white, no suspended substance；
2, maleic anhydride
A: color: white；
B: appearance: crystalline solid (sheet, spherical)；
C: purity (%) > 98；
D: maleic content (%) < 2.1；
E: fusing point DEG C > 51.5；
3, polyamines polyene:
(1) triethylene tetramine (2) tetraethylenepentamine
A: density 0.975-0.995 0.985-1.00
B: coloration < 0.5 < 0.5
C: direct base number 1350-1450mgKOH/g 1250-1350mgKOH/g
D: purity (%) > 97 > 97
E: diethylenetriamine < 2.0 < 2.0
F: moisture content < 1.50 < 1.50
G: nitrogen content (%) 35-37 33-35
H: oil-soluble spot is without precipitating without precipitating
4, base oil: 150SN base oil.
The synthetic method of macromolecule boronation polyisobutylene succinamide, the specific steps of which are as follows:
(1), block adduction
Under the conditions of certain temperature, polyisobutene and maleic anhydride carry out the hot addition reaction of block, generate polyisobutenyl
Succinic anhydride；The polyphosphazene polymer isobutene of 0.2mol is added in the four-hole bottle that band stirs, installs cooling tube, then by 0.1mol
Low molecular weight polyisobutenyl succinic anhydride as initiator be added four-hole bottle in, the polyisobutenyl of the low molecular weight
The molecular weight of succinyl acid anhydride is 1000-1300, while being warming up to 220 DEG C, after stirring 30 minutes, starts to be added dropwise into four-hole bottle
The maleic anhydride of 0.6mol melted, after time for adding maintains -5 hours 3 hours, 30 minutes, by remaining 0.3mol high
Molecule polyisobutene is added in bottle, and the molecular weight of the polyphosphazene polymer isobutene is 2300-2500, maintain the temperature at 220 DEG C-
230 DEG C, continue to drip remaining maleic anhydride, 220 DEG C -230 DEG C is maintained the temperature at after whole completion of dropwise addition, constant temperature 10 is small
When -12 hours, obtain macromolecule polyisobutenyl succinic anhydride；Sample detection is dissociated maleic anhydride content, acid value and viscosity, MA
≤ 0.6%, acid value >=85KOHmg/g, viscosity >=3500 centistokes(cst)s；Maleic anhydride synthetic ratio is 98.5%；
(2) amination
Macromolecule polyisobutenyl succinic anhydride is reacted with polyamines polyene, generates polyisobutylene succinamide and water,
Then the water for steaming generation through depressurizing again, obtains product using filter；
Macromolecule polyisobutenyl succinic anhydride imports amination kettle, and 150SN base oil is added and is diluted, and product viscosity >=
300 centistokes(cst)s, and account for macromolecule polyisobutenyl succinic anhydride total weight 3.0%-3.15% polyamines polyene synthesis under normal pressure, described more
Alkene polyamines is diethylenetriamine, triethylene tetramine, tetraethylenepentamine or pentaethylene hexamine；It is anti-at 80 DEG C -140 DEG C to control temperature
It answers 2 hours, preferably 120 DEG C -130 DEG C of reaction temperature, generates polyisobutylene succinamide and water, steam water, mistake through decompression
Filter, obtains polyisobutylene succinamide；
(3) boronation
Immersion boric acid is carried out with the obtained recycle-water of boronation reaction vacuum distillation, and the mass ratio of the boric acid and recycle-water is
1:1, so that the polarity of boric acid is activated, boric acid conversion ratio can improve very big；
By polyisobutylene succinamide, or the polyisobutylene succinamide without dehydration purification, with recycle-water
The boric acid of immersion reacts 2 hours in 80 DEG C of -140 DEG C of progress boronations, mole of the polyisobutylene succinamide and boric acid
It than then steaming water through decompression again for 1:1-1:2, collects and is used as recycle-water, impregnate boric acid part reuse next time, remaining addition follows
The evaporation loss of ring pond supplement circulating water pool obtains macromolecule boronation polyisobutylene succinamide using filter.
Embodiment 1
(1), block adduction
The polyphosphazene polymer isobutene that 0.2mol molecular weight is 2300-2500 is added in the four-hole bottle with stirring, is installed
Cooling tube, then the polyisobutenyl succinic anhydride for the low molecular weight that 0.1mol molecular weight is 1000-1300 is added as initiator
Enter in four-hole bottle, while being warming up to 220 DEG C, after stirring 30 minutes, starts the horse melted that 0.6mol is added dropwise into four-hole bottle
Carry out acid anhydrides, it is after time for adding maintains 5 hours, 30 minutes, remaining 0.3mol molecular weight is different for the polyphosphazene polymer of 2300-2500
Butylene is added in bottle, maintains the temperature at 220 DEG C -230 DEG C, continues to drip remaining maleic anhydride, after whole completion of dropwise addition
220 DEG C -230 DEG C are maintained the temperature at, constant temperature 12 hours, obtains macromolecule polyisobutenyl succinic anhydride；Sample detection is dissociated horse
Come anhydride content, acid value and viscosity, MA (free maleic anhydride content)≤0.6%, acid value >=85KOHmg/g, viscosity >=3500
Centistokes(cst)；Maleic anhydride synthetic ratio is 98.5%；
(2) amination
Macromolecule polyisobutenyl succinic anhydride imports amination kettle, and 150SN base oil is added and is diluted, makes polyphosphazene polymer
Isobutenyl succinic anhydride viscosity is 350 centistokes(cst)s, and accounts for 3.15% divinyl three of macromolecule polyisobutenyl succinic anhydride weight
Amine synthesis under normal pressure, control temperature are reacted 2 hours at 120 DEG C -130 DEG C, polyisobutylene succinamide and water are generated, through subtracting
Pressure steams water, filters, obtains polyisobutylene succinamide；
(3) boronation
Immersion boric acid is carried out with the obtained recycle-water of boronation reaction vacuum distillation, and the mass ratio of boric acid and recycle-water is 1:1；
Polyisobutylene succinamide is reacted 2 hours with the boric acid that recycle-water impregnates in 120 DEG C of -130 DEG C of progress boronations, it is described poly-
The molar ratio of isobutenyl succimide and boric acid is 1:2, then steams water through decompression again, collects and is used as recycle-water, then passes through
Filtering, obtains macromolecule boronation polyisobutylene succinamide.
Embodiment 2
(1), block adduction
The polyphosphazene polymer isobutene that 0.2mol molecular weight is 2300-2500 is added in the four-hole bottle with stirring, is installed
Cooling tube, then the polyisobutenyl succinic anhydride for the low molecular weight that 0.1mol molecular weight is 1000-1300 is added as initiator
Enter in four-hole bottle, while being warming up to 220 DEG C, after stirring 30 minutes, starts the horse melted that 0.6mol is added dropwise into four-hole bottle
Carry out acid anhydrides, it is after time for adding maintains 4 hours, 30 minutes, remaining 0.3mol molecular weight is different for the polyphosphazene polymer of 2300-2500
Butylene is added in bottle, maintains the temperature at 220 DEG C -230 DEG C, continues to drip remaining maleic anhydride, after whole completion of dropwise addition
220 DEG C -230 DEG C are maintained the temperature at, constant temperature 11 hours, obtains macromolecule polyisobutenyl succinic anhydride；Sample detection is dissociated horse
Come anhydride content, acid value and viscosity, MA≤0.6%, acid value >=85KOHmg/g, viscosity >=3500 centistokes(cst)s；
(2) amination
Macromolecule polyisobutenyl succinic anhydride imports amination kettle, and 150SN base oil is added and is diluted to 300 lis of viscosity
A small bay in a river, and accounts for 3.05% triethylene tetramine synthesis under normal pressure of macromolecule polyisobutenyl succinic anhydride total weight, controls temperature 130
It is reacted 2 hours at DEG C -140 DEG C, generates polyisobutylene succinamide and water, steamed water through decompression, filter, obtain poly- isobutyl
Alkenyl succimide；
(3) boronation
Immersion boric acid is carried out with the obtained recycle-water of boronation reaction vacuum distillation, and the mass ratio of boric acid and recycle-water is 1:1；
Polyisobutylene succinamide is reacted 2 hours with the boric acid that recycle-water impregnates in 130 DEG C of -140 DEG C of progress boronations, it is described poly-
The molar ratio of isobutenyl succimide and boric acid is 1:1.5, then steams water through decompression again, collects and is used as recycle-water, then
It is filtered, obtains macromolecule boronation polyisobutylene succinamide.
Embodiment 3
(1), block adduction
The polyphosphazene polymer isobutene that 0.2mol molecular weight is 2300-2500 is added in the four-hole bottle with stirring, is installed
Cooling tube, then the polyisobutenyl succinic anhydride for the low molecular weight that 0.1mol molecular weight is 1000-1300 is added as initiator
Enter in four-hole bottle, while being warming up to 220 DEG C, after stirring 30 minutes, starts the horse melted that 0.6mol is added dropwise into four-hole bottle
Carry out acid anhydrides, after time for adding maintains 4 hours, 30 minutes, the polyphosphazene polymer for being 2300-2500 by remaining 0.3mol molecular weight
Isobutene is added in bottle, maintains the temperature at 220 DEG C -230 DEG C, continues to drip remaining maleic anhydride, whole completion of dropwise addition
After maintain the temperature at 220 DEG C -230 DEG C, constant temperature 11 hours, obtain macromolecule polyisobutenyl succinic anhydride；Sample detection is free
Maleic anhydride content and acid value, viscosity, MA≤0.6%, acid value >=85KOHmg/g, viscosity >=3500 centistokes(cst)s；Maleic anhydride synthesis
Rate is 97.1%；
(2) amination
Macromolecule polyisobutenyl succinic anhydride imports amination kettle, and 150SN base oil is added and is diluted to 400 lis of viscosity
A small bay in a river, and accounts for 3.0% tetraethylenepentamine synthesis under normal pressure of macromolecule polyisobutenyl succinic anhydride total weight, control temperature 120 DEG C-
It is reacted 2 hours at 130 DEG C, generates polyisobutylene succinamide and water, steamed water through decompression, filter, obtain polyisobutene
Base succimide；
(3) boronation
Immersion boric acid is carried out with the obtained recycle-water of boronation reaction vacuum distillation, and the mass ratio of boric acid and recycle-water is 1:1；
By polyisobutylene succinamide, the boric acid impregnated with recycle-water reacts 2 hours in 120 DEG C of -130 DEG C of progress boronations, described
The molar ratio of polyisobutylene succinamide and boric acid is 1:1, then steams water through decompression again, collects and is used as recycle-water, then
It is filtered, obtains macromolecule boronation polyisobutylene succinamide.
Embodiment 4
(1), block adduction
The polyphosphazene polymer isobutene that 0.2mol molecular weight is 2300-2500 is added in the four-hole bottle with stirring, is installed
Cooling tube, then the polyisobutenyl succinic anhydride for the low molecular weight that 0.1mol molecular weight is 1000-1300 is added as initiator
Enter in four-hole bottle, while being warming up to 220 DEG C, after stirring 30 minutes, starts the horse melted that 0.6mol is added dropwise into four-hole bottle
Carry out acid anhydrides, after time for adding maintains 3 hours, 30 minutes, the polyphosphazene polymer for being 2300-2500 by remaining 0.3mol molecular weight
Isobutene is added in bottle, maintains the temperature at 220 DEG C -230 DEG C, continues to drip remaining maleic anhydride, whole completion of dropwise addition
After maintain the temperature at 220 DEG C -230 DEG C, constant temperature 10 hours, obtain macromolecule polyisobutenyl succinic anhydride；Sample detection is free
Maleic anhydride content and acid value, viscosity, MA≤0.6%, acid value >=85KOHmg/g, viscosity >=3500 centistokes(cst)s；Maleic anhydride synthesis
Rate is 98.3%；
(2) amination
Macromolecule polyisobutenyl succinic anhydride imports amination kettle, and 150SN base oil is added and is diluted to 320 lis of viscosity
A small bay in a river, and accounts for 3.0% pentaethylene hexamine synthesis under normal pressure of macromolecule polyisobutenyl succinic anhydride total weight, control temperature 80 DEG C-
It is reacted 2 hours at 90 DEG C, generates polyisobutylene succinamide and water, steamed water through decompression, filter, obtain polyisobutenyl
Succimide；
(3) boronation
Immersion boric acid is carried out with the obtained recycle-water of boronation reaction vacuum distillation, and the mass ratio of boric acid and recycle-water is 1:1；
Polyisobutylene succinamide is reacted 2 hours with the boric acid that recycle-water impregnates in 80 DEG C of -90 DEG C of progress boronations, it is described gather it is different
The molar ratio of cyclobutenyl succimide and boric acid is 1:1, then steams water through decompression again, collects and is used as recycle-water, using
Filter, obtains macromolecule boronation polyisobutylene succinamide.
The Testing index table of the macromolecule boronation polyisobutylene succinamide of 1 1- of embodiment of the present invention embodiment 4 of table
The Testing index table of the macromolecule polyisobutenyl succinic anhydride of 2 1- of embodiment of the present invention embodiment 4 of table
The domestic similar product quality index of table 3
| Viscosity cst | Open flash point DEG C | Nitrogen content % | Boron content % | Moisture % | Transparency | Total base number | |
| T161B | ≥300 | ≥170 | 1.0-1.0 | 0.35 | ≤0.3 | It is transparent | 18.0-22.0 |
Actual production product, using proof, completely may be used in diesel engine oil CF-4, CH-4 and heavy-duty diesel engine automobile oil
To substitute the similar additive of import, promising result is received.
The above is only specific embodiments of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of synthetic method of macromolecule boronation polyisobutylene succinamide, it is characterized in that:
Specific step is as follows:
(1), block adduction
The polyphosphazene polymer isobutene of 0.2mol is added in four-hole bottle, then by the polyisobutenyl fourth two of the low molecular weight of 0.1mol
Acyl acid anhydride is added in four-hole bottle as initiator, and the molecular weight of the polyisobutenyl succinyl acid anhydride of the low molecular weight is 1000-
1300, while 220 DEG C are warming up to, after stirring 30 minutes, start the maleic anhydride melted that 0.6mol is added dropwise into four-hole bottle,
After time for adding maintains -5 hours 3 hours, 30 minutes, remaining 0.3mol polyphosphazene polymer isobutene is added in bottle, it is described
The molecular weight of polyphosphazene polymer isobutene is 2300-2500, maintains the temperature at 220 DEG C -230 DEG C, continues remaining maleic anhydride
It drips, 220 DEG C -230 DEG C is maintained the temperature at after whole completion of dropwise addition, constant temperature -12 hours 10 hours, obtains polyphosphazene polymer isobutyl
Enetutanedioic acid anhydride；
(2) amination
Macromolecule polyisobutenyl succinic anhydride is imported in amination kettle, base oil is added and is diluted, base oil additional amount is answered
To guarantee product viscosity >=300 centistokes(cst)s, macromolecule polyisobutenyl succinic anhydride total weight 3.0%-3.15% polyenoid is more with accounting for
Amine synthesis under normal pressure, control temperature are reacted 2 hours at 80 DEG C -140 DEG C, polyisobutylene succinamide and water are generated, through subtracting
Pressure steams water, filters, obtains polyisobutylene succinamide；
(3) boronation
By polyisobutylene succinamide, or the polyisobutylene succinamide without dehydration purification, boron is carried out with boric acid
Change, then steam water through decompression again, collects and obtain macromolecule boronation polyisobutenyl succinyl using filter as recycle-water
Imines.
2. the synthetic method of macromolecule boronation polyisobutylene succinamide according to claim 1, it is characterized in that: boron
When changing reaction, the molar ratio of the polyisobutylene succinamide and boric acid is 1:1-1:2, and reaction temperature is 80 DEG C -140
DEG C, the reaction time is 2 hours.
3. the synthetic method of macromolecule boronation polyisobutylene succinamide according to claim 1, it is characterized in that: into
Before the reaction of row boronation, immersion boric acid, the boric acid and recycling are carried out with the recycle-water that the reaction vacuum distillation of step (3) boronation obtains
The mass ratio of water is 1:1, so that the polarity of boric acid is activated, boric acid conversion ratio can improve very big.
4. the synthetic method of macromolecule boronation polyisobutylene succinamide according to claim 1, it is characterized in that: taking
The free maleic anhydride content of sample detection, acid value and viscosity, MA≤0.6%, acid value >=85KOHmg/g, viscosity >=3500 centipoises,
All turn amination after qualification.
5. the synthetic method of macromolecule boronation polyisobutylene succinamide according to claim 1, it is characterized in that: institute
Stating polyamines polyene is diethylenetriamine, triethylene tetramine, tetraethylenepentamine or pentaethylene hexamine.
6. the synthetic method of macromolecule boronation polyisobutylene succinamide according to claim 1, it is characterized in that: amine
When changing reaction, reaction temperature is 120 DEG C -130 DEG C.
7. the synthetic method of macromolecule boronation polyisobutylene succinamide according to claim 1, it is characterized in that: institute
Stating base oil is 150SN base oil.
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