JP4278245B2 - Stir polymerization equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is stirring polymerization equipment relates especially capable promote uniform polymerization reaction stirred polymerization equipment.
[0002]
[Prior art]
Conventional polymerization apparatuses are generally equipped with a three-neck or four-neck flask, each equipped with a stirrer, a cooling tube, and an addition funnel containing a thermometer, a polymerization initiator, a monomer solution, etc. as necessary. The The flask is cooled or heated from the outside by using a hot water bath or a jacket in order to promote the polymerization reaction.
[0003]
Further, as the agitator, a rotary agitator equipped with one or a plurality of blades is usually used. It is known that the polymerization degree and polymerization distribution of a polymer can be controlled by changing the rotation speed of the stirrer. For example, in the case of radical polymerization reaction, the degree of polymerization can be controlled by controlling the collision frequency of monomers radicalized by a polymerization initiator, and in the case of anionic polymerization or cationic polymerization, it is ionized by a polymerization catalyst. The degree of polymerization can be controlled by controlling the collision frequency of the monomers. In the case of emulsion polymerization or suspension polymerization reaction, the particle size of the emulsion or the particle size of the suspension droplets changes according to the rotational speed of the stirrer. As a result, the contents of the polymerization initiator or polymerization catalyst and monomer contained in these emulsions or suspension droplets change, and the degree of polymerization and the like can be controlled.
[0004]
[Problems to be solved by the invention]
However, with the above-described rotary stirrer, there is a limit to the degree of mixing or turbulence of the fluid in the flask even if the number of rotations is increased. For this reason, for example, when producing a polymer having a low molecular weight, it cannot be controlled only by the number of rotations. Therefore, when the monomer concentration in the solution is lowered or the molecular weight distribution is extremely narrow, the polymerization starts. It was necessary to select a kind of an agent or a polymerization catalyst (hereinafter abbreviated as “polymerization initiator”).
[0005]
Therefore, when producing a low molecular weight polymer, there is a problem that the yield of the polymer obtained at one time is small and not efficient. Further, in order to obtain a polymer having a narrow molecular weight distribution, it is necessary to select a polymerization initiator or the like according to the request as described above. However, when a general-purpose polymerization initiator cannot be used, it is custom-made or expensive. There was a problem that the manufacturing cost of the polymer increased.
[0006]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a polymerization apparatus and a polymerization method for producing a polymer having excellent economic efficiency by improving the stirring efficiency. .
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the stirring polymerization apparatus according to the present invention has the following characteristics.
[0008]
(1) A conduit having an inflow port and an outflow port for allowing the polymerization solution to flow therethrough, supported in the conduit so as to be able to fibrillate along its axial direction, and protruding in the radial direction around the shaft and its periphery. A stirring body having a plurality of stirring blades, a vibration source coupled to one end of the stirring body and imparting an axial fibrillation motion to the stirring body, and a flow for partitioning the conduit in multiple stages and circulating fluid A partition plate having holes formed therein, a plurality of mixing chambers partitioned by the partition plate, and an inlet provided in at least one of the mixing chambers, and the agitator in a conduit in a predetermined mode. The polymerization reaction is promoted by agitating and repeating the dispersion and merging of the fluid flow by the stirring blades and stirring the polymerization solution by vibrations of the fluid caused by the stirring blades.
[0009]
The stirring efficiency of the solution is improved by shaking the stirring blade and the polymerization solution is vibrated, so that the polymerization reaction becomes uniform and, for example, a polymer having a narrow molecular weight distribution can be performed using a general-purpose polymerization initiator. and it becomes possible to increase the yield of low-molecular polymer obtained by a single polymerization reaction. Further, the partition plate generates a vortex between the stirring blade and the partition plate, and the stirring efficiency of the polymerization solution is further improved. Furthermore, depending on the polymerization conditions, a monomer, a polymerization initiator, or the like can be introduced into the conduit continuously or sequentially from at least one inlet provided in the mixing chamber.
[0014]
( 2 ) The stirring polymerization apparatus as described in (1) above, wherein a jacket capable of cooling or heating is further provided on the outer periphery of the conduit.
[0015]
For example, anionic polymerization and cationic polymerization are usually performed at a low temperature in consideration of a chain reaction. On the other hand, in the case of radical polymerization, emulsion polymerization, and suspension polymerization, the temperature is raised when the initiation of polymerization is promoted, and the polymerization temperature is lowered when the polymerization proceeds to the chain reaction and when the chain reaction is terminated. There is a need. Therefore, as described above, an appropriate temperature can be set according to the polymerization conditions of the polymerization reaction by providing a jacket that can be cooled or heated on the outer periphery of the conduit.
[0016]
(3) In the stirring polymerization apparatus according to (1) or (2), the stirring polymerization system, by connecting the respective inlet and an outlet, characterized in that by forming several series double.
[0017]
As described above, by connecting a plurality of stirring polymerization apparatuses, a desired polymerization product can be obtained by sequentially adding a polymerization initiator or the like while observing the polymerization degree, polymerization distribution, residual amount of monomer, etc. over time. .
[0018]
( 4 ) The stirring polymerization apparatus according to any one of (1) to ( 3 ), wherein the polymerization reaction is controlled by controlling the frequency of the vibration source.
[0019]
By changing the frequency, the stirring conditions can be changed. Therefore, for example, in the case of emulsion polymerization, it is possible to change the degree of polymerization by changing the emulsion particle size, and it is also possible to change the degree of polymerization and the distribution of polymerization to a desired degree in other polymerizations. Become.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0026]
Embodiment 1 FIG.
FIG. 1 is an overall configuration diagram in which a right half of a stirring polymerization apparatus 100 according to the present embodiment is represented as a cross-sectional view.
[0027]
In FIG. 1, the conduit 10 is formed in a cylindrical shape, and its lower opening is an inlet 12. Further, an outlet 14 is formed in the upper part of the conduit 10, and the fluid flowing in from the inlet 12 passes through the conduit 10 and is discharged from the outlet 14.
[0028]
On the other hand, a stirring body 20 is inserted into the conduit 10. The stirring body 20 includes a shaft portion 22 and a stirring blade 24.
[0029]
The shaft portion 22 extends above the conduit 10 and is connected to the vibration source 30. The vibration source 30 includes a pair of motors 40 and a cam mechanism attached to the output shaft 42 of the motors 40. The cam mechanism has a rotating portion 52 attached with the output shaft 42 eccentrically and a swinging portion 54 that swings due to the eccentric rotation of the rotating portion 52. Therefore, the swing of the swinging portion 54 is transmitted to the shaft portion 22 as vertical vibration through the connecting portion 56.
[0030]
In addition, two diaphragms 62 and 64 are provided at the connection portion 60 between the conduit 10 and the vibration source 30 to prevent the fluid flowing in the conduit 10 from entering the vibration source 30. Here, the two diaphragms 62 and 64 are connected by a connecting member 70 on the pipe so that a certain range moves integrally, and the upper diaphragm 64 is directed downward at a predetermined pressure by a biasing member 72. Is energized. Therefore, even if the pressure in the conduit 10 increases to some extent, it can be opposed to this by the urging force of the urging member 72. The urging member 72 includes a screw 74 and a spring 76, and the urging force can be adjusted by the movement of the spring 76.
[0031]
Accordingly, two or more polymerization solutions used for the polymerization reaction flow from the inlet 12 and flow through the conduit 10 toward the outlet 14 while stirring and vibrating. In this state, the stirring body 20 is vibrated up and down by the vibration source 30. Therefore, the polymerization solution which is a fluid flowing in the conduit 10 is sufficiently stirred and vibrated by contact with the vibrating stirring body 20. Here, the polymerization solution refers to a polymerization reaction such as a liquid monomer, a monomer solution obtained by dissolving a monomer in a solvent, a polymerization initiator solution obtained by dissolving a polymerization initiator in a solvent, or a polymerization catalyst solution obtained by dissolving a polymerization catalyst in a solvent. This refers to the solution used. Further, two or more liquids necessary for obtaining a desired polymer are selected from the above-described polymerization solution and introduced from the inlet 12.
[0032]
Embodiment 2. FIG.
FIG. 2 shows a cross-sectional view of the lower part of another stirred polymerization apparatus 110 according to the present embodiment. In addition, the same code | symbol is attached | subjected to the component similar to Embodiment 1, and the description is abbreviate | omitted.
[0033]
A flow passage 16 for allowing the polymerization solution to flow therethrough is provided in the conduit 11. Further, the conduit 11 is provided with a plurality of cylindrical pipes 10a and a partition plate 32 interposed in a joint portion connecting the pipes 10a, and the conduit 11 is stacked by alternately stacking the pipes 10a and the partition plates 32. Is divided into multiple stages. In other words, a disk-shaped partition plate 32 that is configured to be fitted so that the inner diameter of the peripheral edge is substantially the same as the outer diameter of the pipe 10a is sandwiched between the connecting portions that connect the pipes 10a. Each space in the conduit 11 partitioned by the partition plate 32 becomes a mixing chamber 18. Packing 36 is applied to the upper and lower end faces of the pipe 10a to ensure contact with the partition plate 32 and prevent liquid leakage. Note that the upper and lower ends of the conduit 11 configured in a multistage manner with the pipe 10a and the partition plate 32 are integrally clamped and fixed by a fixture composed of a shaft 28a and a nut 28b. Although only one fixing tool is shown in FIG. 2, it is preferable to use a plurality of fixing tools depending on the degree of clamping. A round hole 34 into which the shaft tube 26 can be inserted is formed at the center of the partition plate 32, and this round hole 34 also serves as a circulation hole through which fluid flows.
[0034]
In such a stirring polymerization apparatus 110, the stirring body 20 vibrates at the upper limit while the polymerization solution is circulated inside the conduit 11, and stirring polymerization is performed in the flow passage 16. At this time, the polymerization solution collides with the stirring member 20 and the partition plate 32, and the polymerization solution is circulated through the round hole 34 that also serves as a circulation hole of the partition plate 32. Therefore, the flow rate of the polymerization solution is limited. And since the stirring body 20 is vibrated up and down in this state, a further sufficient stirring vibration effect is obtained.
[0035]
Further, the mixing chamber 18 partitioned by the partition plate 32 is provided with at least one injection port 90 communicating with the mixing chamber 18. In FIG. 2, the inlet 90 is formed in one mixing chamber 18 provided in the center of the conduit 11, but the present invention is not limited to this, and the inlet 90 is provided in each of the four mixing chambers 18 of the conduit 11. Or a plurality of inlets 90 may be formed in one mixing chamber 18. Thereby, the additive which accelerates | stimulates a polymerization reaction can be introduce | transduced in the conduit | pipe 11 continuously or sequentially via the injection port 90. FIG.
[0036]
Embodiment 3 FIG.
FIG. 3 is a cross-sectional view of the right half of another stirred polymerization apparatus 120 according to the present embodiment. In addition, the same code | symbol is attached | subjected to the component similar to Embodiment 1, and the description is abbreviate | omitted.
[0037]
In the present embodiment, a jacket 80 that can be cooled or heated is provided on the outer periphery of the conduit 10. The jacket 80 is provided with an inlet 82 for allowing a heat medium such as a refrigerant and hot water to flow into the jacket, and an outlet 84 for discharging the heat medium. The heat medium discharged from the outlet 84 may be recirculated to the inlet 82 after being kept at a constant temperature in a thermostat (not shown).
[0038]
As in the present embodiment, by keeping the inside of the conduit 10 for carrying out the polymerization reaction at a predetermined low temperature or high temperature, the anionic polymerization and the cationic polymerization performed at a low temperature (for example, −30 ° C. to 20 ° C.) and the polymerization reaction are performed at a low temperature. It becomes a versatile polymerization apparatus capable of performing a plurality of polymerization reactions such as radical polymerization, emulsion polymerization and suspension polymerization that require both temperature setting and high temperature setting.
[0039]
In the present embodiment, the jacket 80 is attached to the conduit 10 portion having the structure shown in the above-described first embodiment. However, the present invention is not limited to this, and the portion of the conduit 11 having the structure shown in the above-described second embodiment. A jacket 80 may be attached to the.
[0040]
Embodiment 4 FIG.
FIG. 4 shows a polymerization system to which another stirring polymerization apparatus of the present embodiment is applied.
[0041]
Different types of polymerization solutions are stored in the tanks 200a and 200b, respectively. For example, in the case of radical polymerization, suspension polymerization, anionic polymerization, or cationic polymerization, a polymerization solution in which a monomer that can be dissolved, dispersed, or emulsified in a solvent is stored in both tanks 200a and 200b. In the case of emulsion polymerization, an emulsifier is further added to either tank.
[0042]
On the other hand, a polymerization initiator solution in which a polymerization initiator or a polymerization catalyst is dissolved in a solvent is stored in the tank 200c.
[0043]
Examples of the solvent include water and an organic solvent, and the organic solvent is preferably an aromatic solvent such as benzene, toluene, and xylene, but is not limited thereto.
[0044]
Examples of the monomer include unsaturated fatty acid amides such as acrylamide and methacrylamide, unsaturated fatty acids such as acrylic acid and methacrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, (meth) Propyl acrylate, butyl (meth) acrylate, isoamyl (meth) acrylate, phenyl (meth) acrylate, benzyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, (meth ) Octyl acrylate, nonyl (meth) acrylate, dicyclopentadiene (meth) acrylate, adamantyl (meth) acrylate, nylphorane (meth) acrylate, dodecyl (meth) acrylate, stearyl (meth) acrylate, etc. Unsaturated fatty acid esters, vinyl acetate, n-methyl pyro Don, vinylpyridine, butadiene, styrene, styrene sulfonic acid, and sulfonic acid esters of unsaturated fatty acids.
[0045]
Examples of the polymerization initiator used for radical polymerization, suspension polymerization, and emulsion polymerization include peroxides such as potassium peroxide and sodium peroxide, peroxide compounds such as cumene hydroperoxide and diisopropylbenzene hydroperoxide, Examples include perester compounds, percarbonate compounds, azo compounds such as α, α′-azobisisobutyronitrile, α, α′-azobis (dimethylvaleronitrile), and the like.
[0046]
In anionic polymerization, a nucleophilic reagent such as an alkali metal, a metal hydroxide, or a Grignard reagent is used as a polymerization catalyst. In cationic polymerization, protonic acid, metal halide, stable carbonium ion, or the like is used as a polymerization catalyst.
[0047]
Examples of emulsifiers used in emulsion polymerization include sorbitan higher fatty acids such as isostearic acid, palmitic acid, myristic acid, alginic acid, nonadecanoic acid, n-tridecanoic acid, larulinic acid, undecanoic acid, rosin soap, fatty acid soap, and alkylbenzene. A sulfonic acid soap, an alkyl sulfonic acid soap, etc. can be used.
[0048]
If necessary, a molecular weight modifier, an aqueous inorganic salt solution, or the like can be used. Examples of the molecular modifier include tertiary decyl mercaptan and normal dodecyl mercaptan, and examples of the inorganic salt aqueous solution include sodium bicarbonate, sodium sulfate, sodium chloride, potassium chloride, and sodium pyrophosphate. In addition, a desired polymerization product can also be obtained by performing a known polymerization reaction using a monomer and a polymerization initiator used in conventional polymerization using the stirring polymerization apparatus of the present invention.
[0049]
Next, the polymerization method using this embodiment will be described.
[0050]
In the case of producing a copolymer, different types of polymerization solutions stored in the tanks 200a and 200b are supplied to the agitation polymerization apparatus 110 by pumps 71a and 71b, respectively. It is sucked from the inlets 12 a and 12 b, and is stirred, mixed, stirred or emulsified by the stirring body 20 in the conduit 11. Further, the polymerization initiator solution stored in the tank 200 c is supplied to the injection port 90 by the pump 71 c, sucked from the injection port 90 by the vibration of the vibration source 30, and already stirred by the stirring body 20 in the conduit 11. It is stirred and mixed with the polymerization solution. Then, the polymerization solution in which the polymerization has started is discharged from the outlet 14.
[0051]
If the polymerization yield, degree of polymerization, etc. are insufficient only by passing through the conduit 11, the polymerization liquid is again supplied into the conduit 11 through the inlet 12c using the pump 71d, and the polymerization yield or The degree of polymerization can be increased.
[0052]
When producing a homopolymer, the monomer solution is stored in the tank 200a, the initiator solution is stored in the tank 200c, and both liquids are supplied to the agitation polymerization apparatus 110 by the pumps 71a and 71b as described above. The two liquids can be sucked from the inlets 12 a and 12 b by the vibration of the vibration source 30 and can be stirred and mixed by the stirring body 20 in the conduit 11 to perform the polymerization reaction. Then, the polymerization solution in which the polymerization has started is discharged from the outlet 14. When the polymerization is insufficient, the polymerization liquid can be supplied again into the conduit 11 through the inlet 12c using the pump 71d to increase the polymerization yield, the polymerization degree, and the like.
[0053]
In the present embodiment, the flow rate of the solution to be stirred and mixed and the mixing ratio of the two liquids are adjusted by the opening degrees of the valves 70a to 70d.
[0054]
In this embodiment, the stirring polymerization apparatus of Embodiment 2 is used, but the stirring polymerization apparatus of Embodiment 1 or 3 may be used. The same applies to other embodiments described below.
[0055]
Embodiment 5 FIG.
FIG. 5 shows a polymerization system using a multistage stirring polymerization apparatus in which a plurality of stirring polymerization apparatuses described in the first embodiment are connected. In addition, the same code | symbol is attached | subjected to the structure same as the component described in Embodiment 1-4, and the description is abbreviate | omitted. Further, in the polymerization method using the multiple linked stirring polymerization apparatus of the present embodiment, the monomers, solvents, initiators, emulsifiers and the like described in the above-described Embodiment 4 are used, and the description thereof is omitted here. .
[0056]
In the case of producing a copolymer, different types of polymerization solutions are stored in the A tank and the B tank. These polymerization solutions are supplied to the stirring polymerization apparatus 100a by pumps 50a and 50b, respectively, and the two liquids are sucked from the inlets 12a and 12b by the vibration of the vibration source 30, and stirred and mixed by the stirring body 20 in the conduit 10. Then, the suspension is stirred or emulsified and discharged from the outlet 14. The stirred mixed liquid discharged from the outlet 14 is sucked from the inlet 12a of the stirring polymerization apparatus 100b and further stirred and mixed. Then, the sufficiently mixed solution is sucked from the inlet 12a of the stirring polymerization apparatus 100m. On the other hand, an initiator solution is stored in the tank C, and is supplied to the stirring polymerization apparatus 100m through the inlet 12b by a pump 50c.
[0057]
The polymerization solution mixed with the initiator solution and started to be polymerized is discharged from the outlet 14, and then the polymerization is stopped in the tank D through a plurality of stirring polymerization apparatuses n,.
[0058]
The polymerization may be stopped by introducing the polymerization solution that has passed through the stirring polymerization apparatus x into a stirring polymerization apparatus (not shown) and introducing a prepared stopper-containing solution into the stirring polymerization apparatus.
[0059]
Moreover, although the said manufacturing method was described regarding the superposition | polymerization using two types of monomers, when adding three or more types of monomers sequentially, for example, when superposing | polymerizing, such as graft polymerization, each multistage stirring polymerization apparatus This can be achieved by introducing the monomer into the inlet from the inlet. Moreover, if the stirring polymerization apparatus of Embodiment 2 is used, a sequential initiator etc. can be additionally added, it becomes easy to control molecular weight distribution narrowly, and it can improve the yield of a polymer. it can. Moreover, when performing emulsion polymerization, you may add the above-mentioned emulsifier previously to either A tank or B tank.
[0060]
In the case of anionic polymerization or cationic polymerization, a desired polymer can be obtained by using the stirring polymerization apparatus of Embodiment 3 and arranging in multiple stages.
[0061]
The flow rate of the solution to be stirred and mixed and the mixing ratio of each solution are adjusted by the opening degree of each valve 60a to 70c.
[0062]
Embodiment 6 FIG.
In FIG. 5, the stirring polymerization apparatus is erected (vertically placed) and connected in parallel, but in this embodiment, as shown in FIG. 6, the stirring polymerization apparatus described in the first embodiment is laid down. (Horizontal installation) It is a multistage stirring polymerization apparatus connected in parallel. In addition, the same code | symbol is attached | subjected to the structure same as the component described in Embodiment 1-5, and the description is abbreviate | omitted. Further, in the polymerization method using the parallel coupled stirring polymerization apparatus of the present embodiment, the monomer, solvent, initiator, etc., emulsifier, etc. described in the above-described fourth embodiment are used, and the description thereof is omitted here. .
[0063]
Since the degree of turbulent flow of the flowing fluid changes depending on how the stirring polymerization apparatus is placed, it is preferable to select vertical placement or horizontal placement in consideration of the state of stirring and mixing in order to obtain a desired polymer.
[0064]
In addition, it is suitable to use a Vibro mixer (registered trademark, manufactured by Chilling Industries Co., Ltd.) as the stirring polymerization apparatus shown in the first to sixth embodiments. Further, the stirring body of the vibro mixer may be a screw type or a disk type. Moreover, the some through-hole may be provided in the stirring blade of the stirring body.
[0065]
【The invention's effect】
As described above, according to the stirring polymerization apparatus according to the present invention, the stirring efficiency of the solution is improved by vibrating the stirring blade to vibrate the stirring of the polymerization solution. It becomes possible to carry out a polymer having a narrow distribution with a general-purpose polymerization initiator, or to increase the yield of a low-molecular polymer obtained by one polymerization reaction.
[0066]
Further, by providing the partition plate in the conduit and providing the mixing chamber and the inlet, a vortex is generated between the stirring blade and the partition plate, and the stirring efficiency of the polymerization solution is further improved. Further, depending on the polymerization conditions, a monomer, a polymerization initiator, or the like can be introduced into the conduit continuously or sequentially from at least one inlet provided in the mixing chamber.
[0067]
Furthermore, by providing a jacket that can be cooled or heated on the outer periphery of the conduit, the polymerization reaction can be carried out at a temperature optimum for the polymerization conditions.
[0068]
Further, by connecting the stirring polymerization apparatus in parallel, a desired polymerization product can be obtained by sequentially adding a polymerization initiator or the like while observing the polymerization degree, polymerization distribution, residual amount of monomer, etc. over time.
[0069]
Further, according to the stirring polymerization method according to the present invention, since stirring efficiency is improved by performing vibration stirring, particularly constant vibration stirring, as described above, for example, without reducing the yield of the polymer or for general use. A desired polymer can be obtained using a polymerization initiator or the like.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an essential part showing the configuration of one embodiment of a stirring polymerization apparatus according to the present invention.
FIG. 2 is a cross-sectional view showing the configuration of another embodiment of the stirring polymerization apparatus according to the present invention.
FIG. 3 is a cross-sectional view of a principal part showing a configuration of another embodiment of the stirring polymerization apparatus according to the present invention.
FIG. 4 is a diagram showing a polymerization system to which the stirring polymerization apparatus shown in FIG. 2 is applied.
FIG. 5 is a diagram showing an example of a polymerization system using the multistage stirring polymerization apparatus according to the present invention.
FIG. 6 is a diagram showing another example of a polymerization system using the multistage stirring polymerization apparatus according to the present invention.
[Explanation of symbols]
10, 11 Conduit, 12, 12a, 12b, 12c Inlet, 14 Outlet, 16 Flow path, 18 Mixing chamber, 20 Stirring body, 22 Shaft, 24 Stirring blade, 32 Partition plate, 70a, 70b, 70c, 70d Valve, 71a, 71b, 71c, 71d Pump, 90 inlet, 200a, 220b, 200c tank.

Claims (4)

A conduit having an inlet and an outlet for circulating the polymerization solution therein;
A stirrer having a plurality of stirring blades that are supported in the conduit so as to be fibrillated along the axial direction, and projecting in the radial direction around the shaft and the shaft,
A vibration source coupled to one end of the stirrer to impart axial fibrillation motion to the stirrer;
Partitioning the conduit in multiple stages, and a partition plate formed with a flow hole through which fluid flows,
A plurality of mixing chambers partitioned by the partition plate;
At least one inlet provided in the mixing chamber;
Have
The stirring body is fibrillated in a predetermined mode within the conduit, and the polymerization solution is stirred by repeating the fluid flow dispersion and merging by the stirring blades and the vibration of the fluid by the stirring blades fibrillation. A stirring polymerization apparatus characterized in that In the stirring polymerization apparatus according to claim 1 ,
Furthermore, a stirring polymerization apparatus characterized in that a jacket capable of being cooled or heated is provided on the outer periphery of the conduit. In the stirring polymerization apparatus according to claim 1 or 2 ,
The stirring polymerization system, by connecting the respective inlet and an outlet, stirring polymerization apparatus which is characterized in that by forming several series double. In the stirring polymerization apparatus according to any one of claims 1 to 3 ,
A stirring polymerization apparatus characterized in that a polymerization reaction is controlled by controlling a frequency of the vibration source.

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