CN106146706B - A kind of cationic polymerization process - Google Patents
A kind of cationic polymerization process Download PDFInfo
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- CN106146706B CN106146706B CN201510194790.6A CN201510194790A CN106146706B CN 106146706 B CN106146706 B CN 106146706B CN 201510194790 A CN201510194790 A CN 201510194790A CN 106146706 B CN106146706 B CN 106146706B
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Abstract
The invention discloses a kind of cationic polymerization process, it is included under solution polymerization condition, conjugated diene shown in monoolefine shown in Formula II and formula III is contacted with each component in initiator system in alkane, the initiator system contains the compound for being capable of providing carbonium ion, lewis acid and activator, and the activator is selected from compound shown in compound and Formulas I 2 shown in Formulas I 1.With the simple C of use+/ lewis acid initiator system is compared, and this method efficiency of initiation significantly improves, and can obtain higher polymer yield with higher rate of polymerization；By adjusting the content and type of activator in initiator system, the polymer with different molecular weight can be obtained under different polymerizing conditions；In addition, this method can be implemented to polymerize at higher temperatures, the energy expenditure that can be effectively reduced in polymerization process.
Description
Technical field
The present invention relates to a kind of cationic polymerization process.
Background technology
Butyl rubber is produced by the slurry polymerization process of diluent of monochloro methane currently, worldwide generally using,
Its reason essentially consists in：The production efficiency of slurry polymerization process is high, and the molecular weight of product is high, processing performance is good.
Compared with slurry polymerization process, polymerisation in solution rule is in these areas without apparent advantage, especially polymerisation in solution
Molecular weight product that method obtains is low, processing performance is poor, therefore is difficult that the product that is obtained with slurry polymerization process is mutually competing on the market
It strives.But the development space of solution polymerization process is than broader, such as：Solution polymerization process is than slurry polymerization process more meets environmental protection
It asks, and broader to the accommodation of polymerization temperature, especially to realizing that high temperature polymerization aspect has better development prospect.
However, for producing butyl rubber in the solution, main problems faced is that the efficiency of initiation of initiator system is low,
Cause polymerization efficiency poor, it is difficult to obtain the product of high molecular weight.
US3361725 propose aluminum alkyl halide be the effective initiator for preparing butyl rubber in the solution, can compared with
The product of higher molecular weight is obtained at high temperature, but the molar ratio of dialkylaluminum halides in aluminum alkyl halide is required to reach
80% or more, and the molar ratio of monoalkyl dihalide aluminium is then less than 20%, thus the self-initiating of alkyl aluminum is leaned on to act on solution
In prepare butyl rubber in (such as hexane).But in fact, the efficiency of initiation of this initiator system is very low, and polymerization is fast
Rate is very slow, cannot be satisfied the needs of practical application.For this purpose, US6403747 improves this initiator system, i.e., upper
It states in dialkylaluminum halides/monoalkyl dihalide aluminium mixed system and introduces micro water or aikyiaiurnirsoxan beta, keep initiator system active
It improves, so as to prepare the butyl rubber that weight average molecular weight reaches 400,000 or more at -60 DEG C to -80 DEG C.Although
The efficiency of initiation of initiator system and rate of polymerization disclosed in US6403747 are improved to some extent, but in practical operation
It is in journey or unsatisfactory, and the preparation of initiator system is relatively difficult, especially requires very the technology of preparing of aikyiaiurnirsoxan beta
It is high.
Therefore, for the cationic solution polymerization technique of butyl rubber, there is an urgent need for the height that exploitation is adapted to polymerisation in solution
Active initiator system obtains high molecular weight products to improve efficiency of initiation and polymerization efficiency.
Invention content
The purpose of the present invention is to provide a kind of cationic polymerization process, this method prepares monoene using solution polymerization process
It is total to prepare monoolefine-conjugated diene with higher molecular weight with higher polymerization efficiency for hydrocarbon-conjugated diene copolymer
Polymers.
The present invention provides a kind of cationic polymerization process, this method is included under solution polymerization condition, will be at least one
Monoolefine and at least one conjugated diene are contacted with each component in initiator system at least one polymer solvent, described
Initiator system contains at least one compound for being capable of providing carbonium ion, at least one lewis acid and at least one activation
Agent,
The activator is selected from -2 compound represented of -1 compound represented of Formulas I and Formulas I,
In Formulas I -1 and Formulas I -2, R1、R2、R3、R4、R5、R6、R7And R8Respectively-H ,-X1、-NO2、With in-CN
One kind, X1And X2One kind respectively in halogen group；
The monoolefine is selected from Formula II compound represented,
In Formula II, R9And R10Respectively C1~C5Linear or branched alkyl group；Or R9For hydrogen, R10For C3~C5Branch
Alkyl；
The conjugated diene is selected from formula III compound represented,
In formula III, R11、R12And R13Respectively hydrogen or C1~C5Linear or branched alkyl group,
The polymer solvent is selected from alkane.
Method using the present invention prepares monoolefine-conjugated diene copolymer, with the simple C of use+(that is, carbon just from
Son)/lewis acid initiator system compares, and one side efficiency of initiation significantly improves, so as to be obtained with higher rate of polymerization
Higher polymer yield；On the other hand by adjusting the content and type of activator in initiator system, in different polymerizations
Under the conditions of can obtain the polymer with different molecular weight, so as to meet the requirement of different application occasion.In addition, with
Using simple C+/ lewis acid initiator system is compared, and method of the invention can be implemented to polymerize at higher temperatures, to
The energy expenditure that can be effectively reduced in polymerization process.
Specific implementation mode
The present invention provides a kind of cationic polymerization process, this method is included under solution polymerization condition, will be at least one
Monoolefine and at least one conjugated diene are contacted with each component in initiator system at least one polymer solvent.This hair
In bright, "at least one" indicates one or more kinds of.
According to the method for the present invention, the initiator system contain at least one compound for being capable of providing carbonium ion,
At least one lewis acid and at least one activator.
The activator is selected from -2 compound represented of -1 compound represented of Formulas I and Formulas I,
In Formulas I -1 and Formulas I -2, R1、R2、R3、R4、R5、R6、R7And R8Respectively-H ,-X1、-NO2、With in-CN
One kind, X1And X2Respectively in halogen group one kind (such as：- F ,-Cl ,-Br or-I).
The specific example of the activator can include but is not limited to：Tetrahydrochysene 1,4-benzoquinone, tetrahydrochysene neighbour benzoquinones, three hydrogen pair of a fluorine
Benzoquinones, three hydrogen neighbour benzoquinones of a fluorine, difluoro dihydro 1,4-benzoquinone, difluoro dihydro neighbour benzoquinones, one hydrogen 1,4-benzoquinone of trifluoro, one hydrogen neighbour's benzene of trifluoro
Quinone, tetrafluoro 1,4-benzoquinone, tetrafluoro neighbour benzoquinones, three hydrogen 1,4-benzoquinone of a chlorine, three hydrogen neighbour benzoquinones of a chlorine, dichloro-dihydro 1,4-benzoquinone (including 2,
3- dichloros 1,4-benzoquinone, 2,5- dichloros 1,4-benzoquinone, 2,6- dichloros 1,4-benzoquinone), dichloro-dihydro neighbour benzoquinones (including 3,4- dichloro neighbour's benzene
Quinone, 3,5- dichloro neighbours benzoquinones, 3,6- dichloro neighbours benzoquinones), one hydrogen 1,4-benzoquinone of trichlorine, one hydrogen neighbour benzoquinones of trichlorine, chloranil, four
Chlorine neighbour benzoquinones, three hydrogen 1,4-benzoquinone of monobromo, three hydrogen neighbour benzoquinones of monobromo, dibromo dihydro 1,4-benzoquinone (including 2,3- dibromos 1,4-benzoquinone, 2,5-
Dibromo 1,4-benzoquinone, 2,6- dibromos 1,4-benzoquinone), dibromo dihydro neighbour benzoquinones (including 3,4- dibromo-os benzoquinones, 3,5- dibromo-os benzoquinones,
3,6- dibromo-os benzoquinones), one hydrogen 1,4-benzoquinone of tribromo, one hydrogen neighbour benzoquinones of tribromo, tetrabromo 1,4-benzoquinone, tetrabromo-phthalic quinone, three nitre of a fluorine
Base 1,4-benzoquinone, a fluorine trinitro- neighbour benzoquinones, difluoro dinitro 1,4-benzoquinone (including bis- fluoro- 5,6- dinitros 1,4-benzoquinone of 2,3-, 2,5-
Two fluoro- 3,6- dinitros 1,4-benzoquinone, bis- fluoro- 3,5- dinitros 1,4-benzoquinone of 2,6-), difluoro dinitro o benzoquinones (including 3,4- bis-
Fluoro- 5,6- dinitro os benzoquinones, bis- fluoro- 4,6- dinitro os benzoquinones of 3,5-, bis- fluoro- 4,5- dinitro os benzoquinones of 3,6-), trifluoro
One nitro 1,4-benzoquinone, one nitro neighbour benzoquinones of trifluoro, a chlorine trinitro- 1,4-benzoquinone, a chlorine trinitro- neighbour benzoquinones, dichloro dinitro pair
Benzoquinones (including bis- chloro- 5,6- dinitros 1,4-benzoquinone of 2,3-, bis- chloro- 3,6- dinitros 1,4-benzoquinone of 2,5-, bis- chloro- 3,5- bis- of 2,6-
Nitro 1,4-benzoquinone), dichloro dinitro o benzoquinones (including bis- chloro- 5,6- dinitro os benzoquinones of 3,4-, bis- chloro- 4,6- dinitros of 3,5-
Base neighbour benzoquinones, bis- chloro- 4,5- dinitro os benzoquinones of 3,6-), one nitro 1,4-benzoquinone of trichlorine, one nitro neighbour benzoquinones of trichlorine, monobromo three
Nitro 1,4-benzoquinone, monobromo trinitro- neighbour benzoquinones, dibromo dinitro 1,4-benzoquinone (including bis- bromo- 5,6- dinitros 1,4-benzoquinone of 2,3-, 2,
Bis- bromo- 3,6- dinitros 1,4-benzoquinone of 5-, bis- bromo- 3,5- dinitros 1,4-benzoquinone of 2,6-), dibromo dinitro o benzoquinones (including 3,4-
Two bromo- 5,6- dinitro os benzoquinones, bis- bromo- 4,6- dinitro os benzoquinones of 3,5-, bis- bromo- 4,5- dinitro os benzoquinones of 3,6-), three
One nitro 1,4-benzoquinone of bromine, one nitro neighbour benzoquinones of tribromo, tetranitro 1,4-benzoquinone, tetranitro neighbour benzoquinones, a fluorine tricyano 1,4-benzoquinone, one
Fluorine tricyano neighbour benzoquinones, difluoro dicyano p-benzoquinone (including bis- fluoro- 5,6- dicyano p-benzoquinones of 2,3-, bis- fluoro- 3,6- bis- of 2,5-
Cyano 1,4-benzoquinone, bis- fluoro- 3,5- dicyano p-benzoquinones of 2,6-), difluoro dicyano neighbour benzoquinones (including bis- fluoro- 5,6- dicyan of 3,4-
Base neighbour benzoquinones, bis- fluoro- 4,6- dicyanos neighbour benzoquinones of 3,5-, bis- fluoro- 4,5- dicyanos neighbour benzoquinones of 3,6-), one cyano of trifluoro is to benzene
Quinone, one cyano neighbour benzoquinones of trifluoro, a chlorine tricyano 1,4-benzoquinone, a chlorine tricyano neighbour benzoquinones, dichloro dicyano p-benzoquinone (including 2,
Bis- chloro- 5,6- dicyano p-benzoquinones of 3-, bis- chloro- 3,6- dicyano p-benzoquinones of 2,5-, bis- chloro- 3,5- dicyano p-benzoquinones of 2,6-),
Dichloro dicyano neighbour benzoquinones (including bis- chloro- 5,6- dicyanos neighbour benzoquinones of 3,4-, bis- chloro- 4,6- dicyanos neighbour benzoquinones of 3,5-, 3,6-
Two chloro- 4,5- dicyanos neighbour benzoquinones), one cyano 1,4-benzoquinone of trichlorine, one cyano neighbour benzoquinones of trichlorine, monobromo tricyano 1,4-benzoquinone, one
Bromine tricyano neighbour benzoquinones, dibromo dicyano p-benzoquinone (including bis- bromo- 5,6- dicyano p-benzoquinones of 2,3-, bis- bromo- 3,6- bis- of 2,5-
Cyano 1,4-benzoquinone, bis- bromo- 3,5- dicyano p-benzoquinones of 2,6-), dibromo dicyano neighbour benzoquinones (including bis- bromo- 5,6- dicyan of 3,4-
Base neighbour benzoquinones, bis- bromo- 4,6- dicyanos neighbour benzoquinones of 3,5-, bis- bromo- 4,5- dicyanos neighbour benzoquinones of 3,6-), one cyano of tribromo is to benzene
Quinone, one cyano neighbour benzoquinones of tribromo, one cyano 1,4-benzoquinone of trinitro-, one cyano neighbour benzoquinones of trinitro-, dinitro dicyano p-benzoquinone
(including 2,3- dinitro -5,6- dicyano p-benzoquinones, 2,5- dinitro -3,6- dicyano p-benzoquinones, 2,6- dinitros -3,5-
Dicyano p-benzoquinone), dinitro dicyano neighbour benzoquinones (including 3,4- dinitro -5,6- dicyano neighbours benzoquinones, 3,5- dinitros -
4,6- dicyano neighbours benzoquinones, 3,6- dinitro -4,5- dicyano neighbours benzoquinones), a nitro tricyano 1,4-benzoquinone, a nitro tricyano
Adjacent benzoquinones, four cyano 1,4-benzoquinone, four cyano neighbour benzoquinones, a fluorine front three acid chloride group 1,4-benzoquinone, a fluorine front three acid chloride group neighbour benzoquinones, two
Fluorine dimethyl chloride base 1,4-benzoquinone (including bis- fluoro- 5,6- dimethyl chlorides base 1,4-benzoquinone of 2,3-, bis- fluoro- 3,6- dimethyl chlorides bases of 2,5-
1,4-benzoquinone, bis- fluoro- 3,5- dimethyl chlorides base 1,4-benzoquinone of 2,6-), difluoro dimethyl chloride base neighbour benzoquinones (including bis- fluoro- 5,6- of 3,4-
Dimethyl chloride base neighbour benzoquinones, bis- fluoro- 4,6- dimethyl chlorides base neighbour benzoquinones of 3,5-, bis- fluoro- 4,5- dimethyl chlorides base neighbour's benzene of 3,6-
Quinone), one formyl chloro 1,4-benzoquinone of trifluoro, one formyl chloro neighbour benzoquinones of trifluoro, a chlorine front three acid chloride group 1,4-benzoquinone, three formyl of a chlorine
Chloro neighbour benzoquinones, dichloro dimethyl chloride base 1,4-benzoquinone (including bis- chloro- 5,6- dimethyl chlorides base 1,4-benzoquinone of 2,3-, 2,5- bis- chloro- 3,
6- dimethyl chloride bases 1,4-benzoquinone, bis- chloro- 3,5- dimethyl chlorides base 1,4-benzoquinone of 2,6-), dichloro dimethyl chloride base neighbour benzoquinones (including 3,
Bis- chloro- 5,6- dimethyl chlorides base neighbour benzoquinones of 4-, bis- chloro- 4,6- dimethyl chlorides base neighbour benzoquinones of 3,5-, bis- chloro- 4,5- of 3,6-, bis- formyls
Chloro neighbour benzoquinones), one formyl chloro 1,4-benzoquinone of trichlorine, one formyl chloro neighbour benzoquinones of trichlorine, monobromo front three acid chloride group 1,4-benzoquinone, one
Bromine front three acid chloride group neighbour benzoquinones, dibromo dimethyl chloride base 1,4-benzoquinone (including bis- bromo- 5,6- dimethyl chlorides base 1,4-benzoquinone of 2,3-, 2,
Bis- bromo- 3,6- dimethyl chlorides base 1,4-benzoquinone of 5-, bis- bromo- 3,5- dimethyl chlorides base 1,4-benzoquinone of 2,6-), dibromo dimethyl chloride base neighbour's benzene
Quinone (including bis- bromo- 5,6- dimethyl chlorides base neighbour benzoquinones of 3,4-, bis- bromo- 4,6- dimethyl chlorides base neighbour benzoquinones of 3,5-, 3,6- bis- are bromo-
4,5- dimethyl chloride base neighbours benzoquinones), one formyl chloro 1,4-benzoquinone of tribromo, one formyl chloro neighbour benzoquinones of tribromo, tetramethyl acid chloride group pair
Benzoquinones and tetramethyl acid chloride group neighbour's benzoquinones.
The activator be preferably selected from tetrahydrochysene benzoquinones (including tetrahydrochysene 1,4-benzoquinone and tetrahydrochysene neighbour benzoquinones), tetrachloroquinone (including
Chloranil and monoethyl quinone), four cyano benzoquinones (including four cyano 1,4-benzoquinone and four cyano neighbour benzoquinones) and dichloro dicyan
Base benzoquinones (including dichloro dicyano p-benzoquinone and dichloro dicyano neighbour benzoquinones).
The content of the activator, which is subject to, can obtain satisfactory polymerization effect.Usually, described to be capable of providing
The compound of carbonium ion and the molar ratio of the activator are 1：0.01~3, preferably 1：0.1~2.8, more preferably 1：
0.2~2.5, further preferably 1：0.5~1.5.
The compound for being capable of providing carbonium ion, which can be various interacts with lewis acid, can be precipitated carbon just
The compound of ion.Specifically, the compound for being capable of providing carbonium ion can be selected from one or more hydrogen atom
Respectively quiltThe respective quilt of the above hydrogen atom of one or two of substituted alkane and arylSubstitution
Aromatic hydrocarbons, R14、R15、R16And R17Respectively hydrogen, C1~C8Alkyl, phenyl, C7~C10Phenylalkyl, C7~C10Alkylbenzene
Base or C3~C8Naphthenic base；X3And X4One kind respectively in halogen group, such as-F ,-Cl ,-Br or-I, preferably-Cl or-
Br。
The C1~C8Alkyl include C1~C8Straight chained alkyl and C3~C8Branched alkyl, specific example can wrap
It includes but is not limited to：Methyl, ethyl, n-propyl, isopropyl, normal-butyl, sec-butyl, isobutyl group, tertiary butyl, n-pentyl, 2- methyl
Butyl, 3- methyl butyls, 2,2- dimethyl propyls, n-hexyl, 2- methyl amyls, 3- methyl amyls, 4- methyl amyls, 2,3- bis-
Methyl butyl, 2,2- dimethylbutyls, 3,3- dimethylbutyls, 2- ethyl-butyls, n-heptyl, 2- methylhexyls, 3- methyl oneself
Base, 4- methylhexyls, 5- methylhexyls, 2,2- dimethyl amyl groups, 2,3- dimethyl amyl groups, 2,4- dimethyl amyl groups, 3,3- bis-
Methyl amyl, 3,4- dimethyl amyl groups, 4,4- dimethyl amyl groups, 2- ethylpentyls, 3- ethylpentyls, n-octyl, 2- methyl heptan
Base, 3- methylheptyls, 4- methylheptyls, 5- methylheptyls, 6- methylheptyls, 2,2- dimethylhexanyls, 2,3- dimethylhexanyls,
2,4- dimethylhexanyls, 2,5- dimethylhexanyls, 3,3- dimethylhexanyls, 3,4- dimethylhexanyls, 3,5- dimethylhexanyls, 4,
4- dimethylhexanyls, 4,5- dimethylhexanyls, 5,5- dimethylhexanyls, 2- ethylhexyls, 3- ethylhexyls, 4- ethylhexyls,
2- n-propyls amyl and 2- isopropyl amyls.
The C7~C10Phenylalkyl refer to C1~C4A hydrogen atom in alkyl is substituted by phenyl the group to be formed,
Its specific example can include but is not limited to：(wherein, propylidene can be sub- n-propyl or Asia for benzyl, phenethyl, phenylpropyl
Isopropyl) and benzene butyl (wherein, sub- normal-butyl can be sub- normal-butyl, sub- sec-butyl, isobutylidene or sub- tertiary butyl).
The C7~C10Alkyl phenyl refer to a hydrogen atom in phenyl by C1~C4Alkyl replaces the group to be formed,
Its specific example can include but is not limited to：(wherein, propyl can be n-propyl or isopropyl for tolyl, ethylbenzene, propyl phenyl
Base), butylbenzene base (wherein, butyl can be normal-butyl, sec-butyl, isobutyl group or tertiary butyl).
The C3~C8The specific example of naphthenic base can include but is not limited to：Cyclopropyl, cyclobutyl, cyclopenta, hexamethylene
Base, suberyl and cyclooctyl.
The specific example of the compound for being capable of providing carbonium ion can include but is not limited to：The chloro- 2,4,4- of 2- tri-
Methylpentane (TMPCl), to dibenzyl chlorine (that is, Isosorbide-5-Nitrae-two (chloromethyl) benzene), to dibenzyl bromide (that is, Isosorbide-5-Nitrae-two (bromomethyl)
Benzene), to dicumyl chlorine (that is, Isosorbide-5-Nitrae-two (2- chloro isopropyls) benzene), to dicumyl bromine (that is, Isosorbide-5-Nitrae-two (2- bromines isopropyl) benzene),
Isosorbide-5-Nitrae-two (1- chloroethyls) benzene, Isosorbide-5-Nitrae-two (1- bromoethyls) benzene, three cumyl chlorine (that is, 1,3,5- tri- (2- chloro isopropyls) benzene) and three
Cumyl bromine (that is, 1,3,5- tri- (2- bromines isopropyl) benzene).
The lewis acid can be the conventional selection in cationic polymerization field, for example, the lewis acid can be selected from
But it is not limited to：Formula IV compound represented, BF3、BCl3、TiCl4、SnCl4And ZnCl2,
AlR18 nX5 (3-n)(formula IV)
In formula IV, n R18It is identical or different, respectively C1~C8Alkyl, preferably C1~C5Alkyl, more preferably
Ethyl；3-n X5It is identical or different, one kind respectively in halogen group, such as-F ,-Cl ,-Br or-I, preferably-Cl；N is
0,1,2 or 3, preferably 1.
Preferably, the lewis acid is formula IV compound represented.
The specific example of formula IV compound represented can include but is not limited to：Dichloromethyl aluminium, ethyl aluminum dichloride, dichloro
N-propyl aluminium, two chloro isopropyl aluminium, dichloro n-butylaluminum, dichloro aluminium isobutyl, dimethylaluminum chloride, diethyl aluminum chloride, two
N-propyl aluminium chloride, diisopropyl aluminium chloride, di-n-butyl aluminium chloride, diisobutyl aluminum chloride and alchlor.
It is highly preferred that the lewis acid is formula IV compound represented, and in formula IV, n 1.It is further preferred that institute
It is ethyl aluminum dichloride to state lewis acid.
The dosage of the compound for being capable of providing carbonium ion can be selected according to lewis acidic dosage.Generally
Ground, the compound for being capable of providing carbonium ion are 0.01~1 with the lewis acidic molar ratio：1, preferably 0.02~
0.5：1, more preferably 0.03~0.3：1, further preferably 0.03~0.25：1, such as 0.05~0.25：1.
May be used common various methods by the monoolefine and conjugated diene with it is each in the initiator system
Component contacts, and to be polymerize, forms monoolefine-conjugated diene copolymer.
In one embodiment of the invention, each component in the initiator system can be dissolved in solvent,
And be aged obtained mixture, obtain initiator solution；By the initiator solution and described in being dissolved in polymer solvent
Monoolefine and conjugated diene mixing.
The purpose of the ageing is to make lewis acid in initiator system and is capable of providing the compound of carbonium ion
Stable complexing is formed with activator and causes activated centre, can be carried out under normal conditions.Usually, the ageing can be with
In -100 DEG C to 20 DEG C, preferably -100 DEG C to 0 DEG C, more preferably -100 DEG C to -50 DEG C, further preferably -90 DEG C to -70 DEG C of temperature
It spends in range and carries out.The time of the ageing can be 15 minutes to 10 hours.From the initiation for further increasing initiator system
The angle of efficiency is set out, and the time of the ageing is preferably 30 minutes or more.It is imitated from the initiation for further increasing initiator system
The angle of rate is set out, and the time of the ageing is preferably 60 minutes or more.Under the premise of can obtain higher efficiency of initiation, from
The angle of economy is set out, time of the ageing be preferably 5 hours hereinafter, more preferably 3 hours hereinafter, further preferably
2 hours or less.According to the method for the present invention, in a preferred embodiment, the time of the ageing is 30 minutes to 180
Minute.In a kind of more preferably embodiment, the time of the ageing is 60 minutes to 120 minutes.
The solvent can be it is various can dissolve the compound for being capable of providing carbonium ion, the lewis acid and
The liquid substance of the activator.Usually, the solvent can be selected from alkane, halogenated alkane and aromatic hydrocarbons, be preferably selected from C3~
C10Alkane, C1~C10Halogenated alkane and C6~C12Aromatic hydrocarbons.
As solvent, the alkane includes aliphatic alkane and alicyclic alkanes, such as C3~C10Alkane include C3~C10
Aliphatic alkane and C3~C10Alicyclic alkanes.
As solvent, the halogenated alkane includes halogenated aliphatic alkane and halogenated cyclo alkane, such as C1~C10Halogen
Include C for alkane1~C10Halogenated aliphatic alkane and C3~C10Halogenated cyclo alkane.Halogen in the halogenated alkane
Atom can be chlorine, bromine or fluorine, preferably chlorine or fluorine.The halogenated alkane is preferably C1~C4Halogenated aliphatic alkane.
The specific example of the solvent can include but is not limited to：Propane, normal butane, iso-butane, pentane, isopentane,
Neopentane, pentamethylene, n-hexane, 2- methylpentanes, 3- methylpentanes, 2,3- dimethylbutanes, hexamethylene, methyl cyclopentane,
Normal heptane, 2- methyl hexanes, 3- methyl hexanes, 2- ethylpentanes, 3- ethylpentanes, 2,3- dimethyl pentanes, 2,4- dimethyl
Pentane, normal octane, 2- methyl heptanes, 3- methyl heptanes, 4- methyl heptanes, 2,3- dimethylhexanes, 2,4- dimethylhexanes, 2,
5- dimethylhexanes, 3- ethyl hexanes, 2,2,3- trimethylpentanes, 2,3,3- trimethylpentanes, 2,4,4- trimethylpentanes, 2-
Methyl -3- ethylpentanes, n -nonane, 2- methyloctanes, 3- methyloctanes, 4- methyloctanes, 2,3- dimethyl heptanes, 2,4- bis-
Methyl heptane, 3- ethyl heptanes, 4- ethyl heptanes, 2,3,4- trimethyl cyclohexanes, 2,3,5- trimethyl cyclohexanes, 2,4,5- trimethyls
Hexane, 2,2,3- trimethyl cyclohexanes, 2,2,4- trimethyl cyclohexanes, 2,2,5- trimethyl cyclohexanes, 2,3,3- trimethyl cyclohexanes, 2,4,
4- trimethyl cyclohexanes, 2- methyl -3- ethyl hexanes, 2- methyl -4- ethyl hexanes, 3- methyl -3- ethyl hexanes, 3- methyl -4-
Ethyl hexane, 3,3- diethylpentanes, 1- methyl -2- ethyl cyclohexanes, 1- methyl -3- ethyl cyclohexanes, 1- methyl -4- ethyls
Hexamethylene, n-propyl hexamethylene, isopropyl cyclohexane, trimethyl-cyclohexane (include the various isomers of trimethyl-cyclohexane, such as
1,2,3- trimethyl-cyclohexanes, 1,2,4- trimethyl-cyclohexanes, 1,2,5- trimethyl-cyclohexanes, 1,3,5- trimethyl-cyclohexanes),
N-decane, 2- methylnonanes, 3- methylnonanes, 4- methylnonanes, 5- methylnonanes, 2,3- dimethyl octane, 2,4- dimethyl
Octane, 3- ethyls octane, 4- ethyls octane, 2,3,4- trimethylheptanes, 2,3,5- trimethylheptanes, 2,3,6- trimethyls heptan
Alkane, 2,4,5- trimethylheptanes, 2,4,6- trimethylheptanes, 2,2,3- trimethylheptanes, 2,2,4- trimethylheptanes, 2,2,5-
Trimethylheptane, 2,2,6- trimethylheptanes, 2,3,3- trimethylheptanes, 2,4,4- trimethylheptanes, 2- methyl -3- ethyl heptan
Alkane, 2- methyl -4- ethyl heptanes, 2- methyl -5- ethyl heptanes, 3- methyl -3- ethyl heptanes, 4- methyl -3- ethyl heptanes, 5-
Methyl -3- ethyl heptanes, 4- methyl -4- ethyl heptanes, 4- propyl heptane, 3,3- diethylhexanes, 3,4- diethylhexanes, 2-
Methyl -3,3- diethylpentanes, 1,2- diethyl cyclohexanes, 1,3- diethyl cyclohexanes, 1,4- diethyl cyclohexanes, normal-butyl
Hexamethylene, isobutyl butylcyclohexane, t-butylcyclohexane, tetramethyl-ring hexane (include the various isomers of tetramethyl-ring hexane, such as
1,2,3,4- tetramethyl-rings hexane, 1,2,4,5- tetramethyl-rings hexane, 1,2,3,5- tetramethyl-rings hexane), a fluoromethane, difluoro
Methane, fluoroform, carbon tetrafluoride, monochloro methane, dichloromethane, chloroform, carbon tetrachloride, a fluoroethane, Difluoroethane,
Trifluoroethane, tetrafluoroethane, pentafluoroethane, carbon hexa fluoride, monochlorethane, dichloroethanes, trichloroethanes, tetrachloroethanes, pentachloro-
Ethane, carbon hexachloride, a fluoro-propane, difluoropropane, trifluoro propane, tetrafluoropropane, pentafluoropropane, hexafluoropropane, heptafluoro-propane,
Octafluoropropane, a chloropropane, dichloropropane, trichloropropane, four chloropropanes, pentachloropropane, chlordene propane, heptachloropropane, eight chlorine
Propane, a fluorine butane, difluorobutane, trifluorobutane, tetrafluoro butane, 3-pentafluorobutane, hexafluoro butane, seven fluorine butane, octafluorobutane,
Nine fluorine butane, ten fluorine butane, a chlorobutane, dichloroetane, three chlorobutanes, four chlorobutanes, pentachlorobutane, chlordene butane, heptachlor
Butane, telodrine alkane, nine chlorobutanes, ten chlorobutanes, toluene, ethylbenzene and dimethylbenzene (including ortho-xylene, meta-xylene and to two
Toluene).
The concentration of the initiator solution can be conventional selection, be not particularly limited.The dosage of the initiator solution
It can be made appropriate choice according to specific polymerizing condition, polymerization can be caused by being subject to.Those skilled in the art can be
Under the introduction of the prior art, the initiator amount for being adequate to bring about polymerization is determined by the experiment of limited number of time.
Polymerization according to the present invention, the monoolefine can carry out cationic polymerization for commonly used in the art
Monoolefine.Usually, the monoolefine is selected from Formula II compound represented,
In Formula II, R9And R10Respectively C1~C5Linear or branched alkyl group；Or R9For hydrogen, R10For C3~C5Branch
Alkyl.
In the present invention, C1~C5Linear or branched alkyl group include C1~C5Straight chained alkyl and C3~C5Branched alkyl,
Its specific example can include but is not limited to：Methyl, ethyl, n-propyl, isopropyl, normal-butyl, sec-butyl, isobutyl group, tertiary fourth
Base, n-pentyl, isopentyl, tertiary pentyl and neopentyl.
Specifically, the monoolefine can be selected from but not limited to：2- methyl-1-propylenes (that is, isobutene), 2- methyl-1s-
Butylene, 3-methyl-1-butene, 2,3- dimethyl -1- butylene, 2- Methyl-1-pentenes, 3- Methyl-1-pentenes, 4- methyl-1-pentenes
Alkene, 2,3- dimethyl -1- amylenes, 2,4- dimethyl -1- amylenes, 2- methyl-1s-hexene, 2,3- dimethyl -1- hexenes, 2,4- bis-
Methyl-1-hexene, 2,5- dimethyl-1- hexenes and 2,4,4- trimethyl-1- amylenes.
Preferably, the monoolefine is isobutene.
According to the method for the present invention, the conjugated diene refers to the compound containing conjugated double bond in molecular structure.It is excellent
Selection of land, the conjugated diene are selected from formula III compound represented,
In formula III, R11、R12And R13It is identical or different, respectively hydrogen or C1~C5Linear or branched alkyl group.
The specific example of the conjugated diene can include but is not limited to butadiene and/or isoprene.It is highly preferred that
The conjugated diene is isoprene.
According to the method for the present invention, the relative usage of the monoolefine and the conjugated diene can be prepared according to final
The concrete application occasion of polymer make appropriate choice.Usually, it is with the total amount of the monoolefine and conjugated diene
The content of benchmark, the monoolefine can be 80~99.5 weight %, preferably 90~98 weight %；The conjugated diene
Content can be 0.5~20 weight %, preferably 2~10 weight %.
Polymerization according to the present invention, the polymer solvent, which is selected from, can dissolve monoolefine and conjugated diene and life
At monoolefine-conjugated diene copolymer alkane.
As polymer solvent, the alkane can be aliphatic alkane (that is, alkane) and/or alicyclic alkanes (that is, ring
Alkane).The aliphatic alkane is preferably C3~C10Aliphatic alkane, more preferably C3~C8Aliphatic alkane, further
Preferably C5~C8Aliphatic alkane；The alicyclic alkanes are preferably C3~C10Alicyclic alkanes, further preferably C5
~C10Alicyclic alkanes.
The specific example of the polymer solvent can include but is not limited to：Propane, normal butane, iso-butane, pentane, isoamyl
Alkane, neopentane, pentamethylene, n-hexane, 2- methylpentanes, 3- methylpentanes, 2,3- dimethylbutanes, hexamethylene, methyl ring penta
Alkane, normal heptane, 2- methyl hexanes, 3- methyl hexanes, 2- ethylpentanes, 3- ethylpentanes, 2,3- dimethyl pentanes, 2,4- diformazans
Base pentane, normal octane, 2- methyl heptanes, 3- methyl heptanes, 4- methyl heptanes, 2,3- dimethylhexanes, 2,4- dimethylhexanes,
2,5- dimethylhexanes, 3- ethyl hexanes, 2,2,3- trimethylpentanes, 2,3,3- trimethylpentanes, 2,4,4- trimethylpentanes,
2- methyl -3- ethylpentanes, n -nonane, 2- methyloctanes, 3- methyloctanes, 4- methyloctanes, 2,3- dimethyl heptanes, 2,4-
Dimethyl heptane, 3- ethyl heptanes, 4- ethyl heptanes, 2,3,4- trimethyl cyclohexanes, 2,3,5- trimethyl cyclohexanes, 2,4,5- front threes
Base hexane, 2,2,3- trimethyl cyclohexanes, 2,2,4- trimethyl cyclohexanes, 2,2,5- trimethyl cyclohexanes, 2,3,3- trimethyl cyclohexanes, 2,
4,4- trimethyl cyclohexanes, 2- methyl -3- ethyl hexanes, 2- methyl -4- ethyl hexanes, 3- methyl -3- ethyl hexanes, 3- methyl -
4- ethyl hexanes, 3,3- diethylpentanes, 1- methyl -2- ethyl cyclohexanes, 1- methyl -3- ethyl cyclohexanes, 1- methyl -4- second
Butylcyclohexane, n-propyl hexamethylene, isopropyl cyclohexane, trimethyl-cyclohexane, n-decane, 2- methylnonanes, 3- methylnonanes,
4- methylnonanes, 5- methylnonanes, 2,3- dimethyl octane, 2,4- dimethyl octane, 3- ethyls octane, 4- ethyls octane, 2,
3,4- trimethylheptanes, 2,3,5- trimethylheptanes, 2,3,6- trimethylheptanes, 2,4,5- trimethylheptanes, 2,4,6- front threes
Base heptane, 2,2,3- trimethylheptanes, 2,2,4- trimethylheptanes, 2,2,5- trimethylheptanes, 2,2,6- trimethylheptanes, 2,
3,3- trimethylheptanes, 2,4,4- trimethylheptanes, 2- methyl -3- ethyl heptanes, 2- methyl -4- ethyl heptanes, 2- methyl -5-
Ethyl heptane, 3- methyl -3- ethyl heptanes, 4- methyl -3- ethyl heptanes, 5- methyl -3- ethyl heptanes, 4- methyl -4- ethyls
Heptane, 4- propyl heptane, 3,3- diethylhexanes, 3,4- diethylhexanes, 2- methyl -3,3- diethylpentanes, 1,2- diethyls
Butylcyclohexane, 1,3- diethyl cyclohexanes, 1,4- diethyl cyclohexanes, n-butyl cyclohexane, isobutyl butylcyclohexane, tertiary butyl ring
Hexane and tetramethyl-ring hexane.
Preferably, the polymer solvent is selected from pentane, n-hexane and normal heptane.
The dosage of the polymer solvent can be the conventional selection of this field.Usually, the dosage of the polymer solvent makes
It is 2~25 weight %, preferably 5~15 weight % to obtain total monomer concentration.
Polymerization according to the present invention, by least one monoolefine and at least one conjugated diene and initiator system
In the condition that is contacted in polymer solvent of each component can be this field conventional selection.Usually, the contact can
With at -120 DEG C to 20 DEG C, preferably -100 DEG C to 0 DEG C, more preferably -100 DEG C to -40 DEG C, further preferably -90 DEG C to -60 DEG C
It is carried out in temperature range.From the angle of the molecular weight for the monoolefine-conjugated diene copolymer for further increasing preparation, institute
Contact is stated preferably to carry out within the temperature range of -100 DEG C to -85 DEG C.Polymerization according to the present invention, the time of the contact
It can be the conventional selection of this field, generally can be 10~180 minutes.
Polymerization according to the present invention can also include adding to gather in the mixture obtained to polymerization after completion of polymerization
Terminator is closed to make polymerisation terminate (such as alcohol).The present invention is not special for the type and dosage of the polymerization terminator
It limits, can be the conventional selection of this field, polymerisation can be terminated by being subject to, and repeats no more herein.
According to the method for the present invention, the monomer and diluent for being used to polymerize are before using preferably in condition commonly used in the art
Under refined, repeats no more herein.
The present invention will be described in detail with reference to embodiments.
In following embodiment and comparative example, polymer yield is measured using weight method,
Polymer yield (%)=(total weight of the monomer of weight/addition of obtained polymer) × 100%.
In following embodiment and comparative example, the molecular weight and molecular weight distributing index of polymer are given birth to using Japanese Shimadzu Corporation
The LC-20A type liquid phase gel permeation chromatographs of production measure, using single aperture chromatographic columnWithFour columns are combined.Mobile phase is tetrahydrofuran, flow velocity 0.7mL/min；A concentration of 2mg/mL of sample solution, sample size are
200μL；Test temperature is 35 DEG C；Using single distribution polystyrene as standard sample.
In following embodiment and comparative example, using the AVANCE400 Nuclear Magnetic Resonance commercially available from Bruker companies of Switzerland, with
CDC13Make solvent, TMS is internal standard, measures the degree of unsaturation of monoolefine-conjugated diene copolymer of preparation (that is, the list prepared
The content of the structural unit formed by isoprene in alkene-conjugated diene copolymer).
Solvent and monomer used in following embodiment and comparative example before use, using method commonly used in the art into
Row is refined, and the preparation of polymerisation and initiator solution carries out in the operating under nitrogen case equipped with low temperature cryostat.
Preparation example 1~5 is used to prepare the compound for being capable of providing carbonium ion.
Preparation example 1：The synthesis of the chloro- 2,4,4- trimethylpentanes (TMPCl) of 2-
250mL flask with three necks,round bottom is placed in ice-water bath, then be added 2,4,4- trimethyl -1- amylenes of 30mL and
30mL dichloromethane.Under conditions of being continually fed into dry hydrogen chloride gas, 5h is reacted.Mixture carbonic acid obtained by the reaction
Hydrogen sodium is neutralized, and after anhydrous magnesium sulfate then is added into solution, is filtered, and collects liquid mixture, and depressurized
Distillation, (yield is 70 weight % to the fraction of collection 44 DEG C (2.1332kPa), determines that its purity is through gas chromatographic analysis
93%).Through characterization, confirm that the fraction is 2- chloro- 2,4,4- trimethylpentanes.Wherein,1H-NMR (δ, ppm)：1.06(-C
(CH3)3), 1.67 (- C (CH3)2Cl), 1.88 (- CH2-)。
Preparation example 2：Synthesis to dicumyl chlorine
500mL is placed in ice-water bath equipped with three mouthfuls of round bottoms of slotting bottom air inlet pipe and an air outlet pipe and magnetic stirring apparatus burning
In, 8g is then respectively adding to dicumyl alcohol, 10g CaCl2And 100g dichloromethane.It is continually fed into three-necked flask dry
Dry hydrogen chloride gas is stirred to react 10 hours.It is filtered after reaction, obtains clear solution, vacuum removal hydrogen chloride
And dichloromethane, obtain 9.1g colourless acicular crystals (yield is 96 weight %).Gained acicular crystal is being dissolved in 50mL just
In hexane, it is filtered to remove insoluble impurities, remaining liquid phase substance is cooled to -20 DEG C to -30 DEG C, is tied with stirring
Crystalline substance is detached precipitating crystal with mother liquor, collects crystal.Determine that the crystal is to dicumyl chlorine through characterization.Wherein,1H-NMR (δ,
ppm)：2.007.56 (phenyl).
Preparation example 3：Synthesis to dicumyl bromine
It is prepared to dicumyl bromine using method similar with preparation example 2, unlike, hydrogen chloride gas bromination hydrogen
Instead of.Wherein,1H-NMR (δ, ppm)：2.117.06 (phenyl).
Preparation example 4：The synthesis of tri- cumyl chlorine of 1,3,5-
(1) to 1000mL equipped with being added in two mouthfuls of round bottoms of magnetic stirring apparatus and condenser pipe and constant pressure funnel
18g (0.086mol) 1,3,5- benzenetricarboxylic acids and 500mL absolute methanols.Then, the 20mL concentrated sulfuric acids, reflux are added dropwise at reflux
After reaction 24 hours, reaction mixture is cooled to room temperature, and is placed 12 hours at a temperature of about -5 DEG C.Then, it carried out
The solid matter being collected into is washed with distilled water for several times until anacidity washes out, to obtain colourless 1,3,5- benzene three by filter
Sour methyl esters crystal.Wherein,1H-NMR (δ, ppm)：3.98(-CH3), 8.86 (phenyl).
(2) under the protection of dry nitrogen, in 500mL equipped with two mouthfuls of round bottoms of magnetic stirring apparatus and constant pressure funnel
In flask, 1,3,5- benzenetricarboxylic acid methyl esters of 16g (0.063mol) is dissolved in 280mL anhydrous tetrahydro furans (THF), and is cooled to
0℃.Then, the diethyl ether solution (content of methyl-magnesium-bromide is 0.448mol) of methyl-magnesium-bromide is added dropwise, keeps 0 DEG C of reaction 12 small
When.Then, mixture will be obtained and be added to 280g trash ices with the mixture of 18g ammonium chlorides with stirring, ether is used in combination to carry out
Extraction, extract liquor are dried with anhydrous magnesium sulfate, and evaporation of solvent after extract liquor is filtered obtains 1,3,5- (2- hydroxyl isopropyls
Base) benzene (that is, 1,3,5- tri- cumyl alcohol) crude product.1,3,5- tri- cumyl alcohol crude product is recrystallized in ethyl acetate,
Obtain tri- cumyl alcohol crystals of 1,3,5-.Wherein,1H-NMR (δ, ppm)：1.61(In-CH3)；7.52 (phenyl).
(3) 500mL is placed in equipped with the three neck round bottom flask of slotting bottom air inlet pipe and an air outlet pipe and magnetic stirring apparatus
In ice-water bath, then, 1,3,5- tri- cumyl alcohols of 8g, 10g CaCl is added2And 120g dichloromethane.It is held into three-necked flask
It is continuous to be passed through dry hydrogen chloride gas, it is stirred to react 10 hours.It is filtered after reaction, obtains clear solution, vacuum is de-
Except HCl and dichloromethane, obtain colourless acicular crystal (yield is 96 weight %).By gained dissolution of crystals in 50mL n-hexanes
In, it is filtered to remove insoluble impurities, remaining liquid substance is cooled to -20 DEG C to -30 DEG C, is crystallized with stirring, it will
It precipitates crystal and is detached with mother liquor, collect crystal.Confirm that the crystal is tri- cumyl chlorine of 1,3,5- through characterization.Wherein,1H-NMR (δ,
ppm)：2.01~2.037.72 (phenyl).
Preparation example 5：The synthesis of tri- cumyl bromines of 1,3,5-
1,3,5- tri- cumyl bromines are prepared using method identical with preparation example 4, unlike, in step (3), hydrogen chloride gas
Body is replaced with bromination hydrogen.Wherein,1H-NMR (δ, ppm)：2.126.83 (phenyl).
Examples 1 to 21 is for illustrating the present invention.
Embodiment 1
(1) 0.0213g chloranils are dissolved in the dichloromethane that 26.4g contains TMPCl (content 0.0137g),
Obtained solution is cooled to -90 DEG C in advance, the ethyl aluminum dichloride of a concentration of 0.9mol/L of 1.5mL is then added into the solution
(EADC) hexane solution, uniformly mixed be placed in -90 DEG C of cryostat is aged 60min, to obtain initiator solution.Its
In, by weight, the content 800ppm of chloranil in initiator solution.
(2) 180mL is sequentially added in the 500mL glass reactors stirred equipped with strength constant speed and is being cooled to -60 DEG C in advance just
Hexane, 32mL are cooled to -60 DEG C of isobutene in advance and 1mL is cooled to -20 DEG C of isoprene in advance, are uniformly mixed.It is dripped into reactor
The initiator solution for adding step (1) to prepare.Wherein, the addition of initiator solution is 15mL；Control drop rate to react
Temperature in device is within the scope of -85 DEG C to -90 DEG C.After being added dropwise to complete, the temperature in reactor is kept to be in -85 DEG C
Within the scope of to -90 DEG C, the polymerisation of 15min is carried out with stirring, 5mL is then added into reaction mixture contains
The methanol solution of 0.5 weight %NaOH, to terminate polymerisation.Obtained mixed solution is placed in hot bath and removes solvent,
Obtained product is after washing, dry to constant weight in 60 DEG C in vacuum drying oven, to obtain monoolefine-conjugated diolefin copolymer
Object.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 1.
Embodiment 2
It is polymerize using method same as Example 1, unlike, in step (1), TMPCl is with 0.0161g pairs two
Benzyl chloride replaces.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 1.
Embodiment 3
It is polymerize using method same as Example 1, unlike, in step (1), TMPCl is with 0.0243g pairs two
Benzyl bromide replaces.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 1.
Embodiment 4
It is polymerize using method same as Example 1, unlike, in step (1), TMPCl is with 0.0213g pairs two
Cumyl chloro replaces.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 1.
Embodiment 5
It is polymerize using method same as Example 1, unlike, in step (1), TMPCl is with 0.0295g pairs two
Cumyl bromo replaces.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 1.
Embodiment 6
It is polymerize using method same as Example 1, unlike, in step (1), TMPCl 0.0277g 1,
Tri- cumyl chloros of 3,5- replace.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 1.
Embodiment 7
It is polymerize using method same as Example 1, unlike, in step (1), TMPCl 0.0397g 1,
Tri- cumyl bromos of 3,5- replace.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 1.
Table 1
Embodiment 8
(1) bis- chloro- 5,6- dicyano p-benzoquinones of 0.0754g 2,3- 150g is dissolved in contain TMPCl (content is
In dichloromethane solution 0.0711g), above-mentioned solution is then cooled to -80 DEG C in advance, and 6mL is added is cooled to -80 DEG C in advance and contain
The hexane solution of ethyl aluminum dichloride (a concentration of 0.9mol/L) is aged 60min at -80 DEG C, to be drawn after mixing
Send out agent solution.Wherein, by weight, in initiator solution, a concentration of 500ppm of 2,3- bis- chloro- 5,6- dicyano p-benzoquinones.
(2) 200mL is sequentially added in the glass reactor of the 500mL stirred equipped with strength constant speed and is cooled to -80 DEG C in advance
N-hexane, 25mL are cooled to -80 DEG C of isobutene in advance and 0.8mL is cooled to -20 DEG C of isoprene in advance, are uniformly mixed.To reactor
Initiator solution prepared by middle a dropping step (1).Wherein, the addition of initiator solution is 25mL, and control drop rate makes
Temperature in reactor is within the scope of -85 DEG C to -90 DEG C.After being added dropwise to complete, the temperature in reactor is kept to be in -85
DEG C within the scope of -90 DEG C, the polymerisation of 17min is carried out with stirring, 5mL is then added into reaction mixture contains
The methanol solution of 0.5 weight %NaOH, to terminate polymerisation.Obtained mixed solution is placed in hot bath and removes solvent,
Obtained solid is after washing, dry to constant weight in 60 DEG C in vacuum drying oven, to obtain monoolefine-conjugated diolefin copolymer
Object.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 2.
Embodiment 9
It is polymerize using method same as Example 8, unlike, it is replaced with the four cyano 1,4-benzoquinone of equimolar amounts
Bis- chloro- 5,6- dicyano p-benzoquinones of 2,3-.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 2.
Embodiment 10
It is polymerize using method same as Example 8, unlike, 2 are replaced with the chloranil of equimolar amounts,
Bis- chloro- 5,6- dicyano p-benzoquinones of 3-.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 2.
Embodiment 11
It is polymerize using method same as Example 8, unlike, 2 are replaced with the tetrahydrochysene 1,4-benzoquinone of equimolar amounts,
Bis- chloro- 5,6- dicyano p-benzoquinones of 3-.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 2.
Comparative example 1
It is polymerize using method same as Example 8, unlike, 2,3- bis- chloro- 5,6- is not used in step (1)
Dicyano p-benzoquinone, that is, the initiator solution prepared are free of 2,3-, bis- chloro- 5,6- dicyano p-benzoquinones.
The weight of obtained polymer is measured, polymer yield is calculated, and measures the degree of unsaturation of the polymer of preparation, divide
Son amount and molecular weight distributing index, are as a result listed in table 2.
Table 2
Embodiment 12
(1) 0.0201g chloranils 200g is dissolved in contain in the dichloromethane to TMPCl (content 0.0858g),
Obtained solution is cooled to -80 DEG C in advance, the ethyl aluminum dichloride of a concentration of 0.9mol/L of 10mL is then added into the solution
(EADC) hexane solution, uniformly mixed be placed in -80 DEG C of cryostat is aged 60min, to obtain initiator solution.Its
In, by weight, the content 100ppm of chloranil in initiator solution.
(2) 180mL is sequentially added in the 500mL glass reactors stirred equipped with strength constant speed and is being cooled to -60 DEG C in advance just
Hexane, 32mL are cooled to -60 DEG C of isobutene in advance and 1mL is cooled to -20 DEG C of isoprene in advance, are uniformly mixed.It is dripped into reactor
The initiator solution for adding step (1) to prepare.Wherein, the addition of initiator solution is 15mL；Control drop rate to react
Temperature in device is within the scope of -80 DEG C to -85 DEG C.After being added dropwise to complete, the temperature in reactor is kept to be in -80 DEG C
Within the scope of to -85 DEG C, the polymerisation of 30min is carried out with stirring, 5mL is then added into reaction mixture contains
The methanol solution of 0.5 weight %NaOH, to terminate polymerisation.Obtained mixed solution is placed in hot bath and removes solvent,
Obtained product is after washing, dry to constant weight in 60 DEG C in vacuum drying oven, to obtain monoolefine-conjugated diolefin copolymer
Object.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 3.
Embodiment 13
It is polymerize using with 12 identical method of embodiment, unlike, in step (1), the dosage of chloranil
For 0.0805g.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 3.
Embodiment 14
It is polymerize using with 12 identical method of embodiment, unlike, in step (1), the dosage of chloranil
For 0.1611g.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 3.
Embodiment 15
It is polymerize using with 12 identical method of embodiment, unlike, in step (1), the dosage of chloranil
For 0.2013g.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 3.
Comparative example 2
It is polymerize using with 12 identical method of embodiment, unlike, chloranil is not used in step (1),
The initiator solution prepared is free of chloranil.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 3.
Embodiment 16
It is polymerize using with 14 identical method of embodiment, unlike, in step (2), initiator solution is being added dropwise
And in polymerization process, the temperature in reactor is made to be in the range of -60 DEG C to -70 DEG C.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 3.
Table 3
*：By weight
Embodiment 17
(1) 0.0213g chloranils are dissolved in the dichloromethane that 26.4g contains 0.0213g TMPCl, by what is obtained
Solution is cooled to -80 DEG C in advance, be then added into the solution ethyl aluminum dichloride (EADC) of 1.5mL a concentration of 0.9mol/L just oneself
Alkane solution, uniformly mixed be placed in -80 DEG C of cryostat is aged 60min, to obtain initiator solution.Wherein, by weight,
The content 800ppm of chloranil in initiator solution.
(2) 180mL is sequentially added in the 500mL glass reactors stirred equipped with strength constant speed and is being cooled to -60 DEG C in advance just
Hexane, 32mL are cooled to -60 DEG C of isobutene in advance and 1mL is cooled to -20 DEG C of isoprene in advance, are uniformly mixed.It is dripped into reactor
The initiator solution for adding step (1) to prepare.Wherein, the addition of initiator solution is 15mL；Control drop rate to react
Temperature in device is within the scope of -85 DEG C to -90 DEG C.After being added dropwise to complete, the temperature in reactor is kept to be in -85 DEG C
Within the scope of to -90 DEG C, the polymerisation of 15min is carried out with stirring, 5mL is then added into reaction mixture contains
The methanol solution of 0.5 weight %NaOH, to terminate polymerisation.Obtained mixed solution is placed in hot bath and removes solvent,
Obtained product is after washing, dry to constant weight in 60 DEG C in vacuum drying oven, to obtain monoolefine-conjugated diolefin copolymer
Object.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 4.
Embodiment 18
It is polymerize using with 17 identical method of embodiment, unlike, in step (1), digestion time 180min.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 4.
Embodiment 19
It is polymerize using with 17 identical method of embodiment, unlike, in step (1), digestion time 120min.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 4.
Embodiment 20
It is polymerize using with 17 identical method of embodiment, unlike, in step (1), digestion time 30min.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 4.
Embodiment 21
It is polymerize using with 17 identical method of embodiment, unlike, in step (1), digestion time 15min.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 4.
Comparative example 3
It is polymerize using with 17 identical method of embodiment, unlike, chloranil is not used in step (1),
The initiator solution prepared is free of chloranil.
Measure the obtained weight of polymer, calculate polymer yield, and measure the degree of unsaturation of polymer, molecular weight and
As a result molecular weight distributing index is listed in table 4.
Table 4
*：By weight
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (29)
1. a kind of cationic polymerization process, this method are included under solution polymerization condition, by least one monoolefine and at least one
Kind conjugated diene is contacted with each component in initiator system at least one polymer solvent, and the initiator system contains
At least one compound for being capable of providing carbonium ion, at least one lewis acid and at least one activator, it is described to carry
It is 1 for the compound of carbonium ion and the molar ratio of the activator：0.01~3, the chemical combination for being capable of providing carbonium ion
Object is 0.01~1 with the lewis acidic molar ratio：1,
The activator is selected from -2 compound represented of -1 compound represented of Formulas I and Formulas I,
In Formulas I -1 and Formulas I -2, R1、R2、R3、R4、R5、R6、R7And R8Respectively-H ,-X1、-NO2、With one in-CN
Kind, X1And X2One kind respectively in halogen group；
The compound for being capable of providing carbonium ion is selected from quiltSubstituted alkane and bySubstituted virtue
Hydrocarbon, R14、R15、R16And R17Respectively hydrogen, C1~C8Alkyl, phenyl, C7~C10Phenylalkyl, C7~C10Alkyl phenyl
Or C3~C8Naphthenic base, X3And X4One kind respectively in halogen group；
The lewis acid is selected from formula IV compound represented,
AlR18 nX5 (3-n)(formula IV)
In formula IV, n R18Respectively C1~C8Alkyl；3-n X5One kind respectively in halogen group, n 0,1,2 or 3；
The monoolefine is selected from Formula II compound represented,
In Formula II, R9And R10Respectively C1~C5Linear or branched alkyl group；Or R9For hydrogen, R10For C3~C5Branched alkyl；
The conjugated diene is selected from formula III compound represented,
In formula III, R11、R12And R13Respectively hydrogen or C1~C5Linear or branched alkyl group,
The polymer solvent is selected from alkane.
2. according to the method described in claim 1, wherein, the compound for being capable of providing carbonium ion and the activator
Molar ratio is 1：0.1~2.8.
3. according to the method described in claim 2, wherein, the compound for being capable of providing carbonium ion and the activator
Molar ratio is 1：0.2~2.5.
4. according to the method described in claim 3, wherein, the compound for being capable of providing carbonium ion and the activator
Molar ratio is 1：0.5~1.5.
5. the method according to any one of Claims 1 to 4, wherein the compound for being capable of providing carbonium ion
It is 0.02~0.5 with the lewis acidic molar ratio：1.
6. according to the method described in claim 5, wherein, the compound for being capable of providing carbonium ion and the lewis acid
Molar ratio be 0.03~0.3：1.
7. according to the method described in claim 6, wherein, the compound for being capable of providing carbonium ion and the lewis acid
Molar ratio be 0.03~0.25：1.
8. according to the method described in claim 1, wherein, by least one monoolefine and at least one conjugated diene with it is described
In initiator system each component contact method include：Each component in the initiator system is dissolved in solvent, and
Obtained mixture is aged, initiator solution is obtained；By the initiator solution and the list being dissolved in polymer solvent
Alkene and conjugated diene mixing.
9. according to the method described in claim 8, wherein, the time of the ageing is 15 minutes to 10 hours.
10. according to the method described in claim 9, wherein, the time of the ageing is 30 minutes to 180 minutes.
11. according to the method described in claim 10, wherein, the time of the ageing is 60 minutes to 120 minutes.
12. the method according to any one of claim 8~11, wherein temperature of the ageing at -100 DEG C to 20 DEG C
It spends in range and carries out.
13. according to the method for claim 12, wherein the ageing carries out within the temperature range of -100 DEG C to 0 DEG C.
14. according to the method for claim 13, wherein the ageing carries out within the temperature range of -100 DEG C to -50 DEG C.
15. according to the method for claim 14, wherein the ageing carries out within the temperature range of -90 DEG C to -70 DEG C.
16. according to the method described in claim 8, wherein, the solvent is one kind in alkane, halogenated alkane and aromatic hydrocarbons
Or it is two or more.
17. according to the method described in any one of Claims 1 to 4 and 8~11, wherein the activator is selected from tetrachlorobenzene
Quinone, dichlorocyanobenzoquinone, tetrahydrochysene benzoquinones and four cyano benzoquinones.
18. according to the method described in any one of Claims 1 to 4 and 8~11, wherein X3And X4Respectively-Cl or-Br.
19. according to the method described in any one of Claims 1 to 4 and 8~11, wherein described to be capable of providing carbonium ion
Compound be selected from the chloro- 2,4,4- trimethylpentanes of 2-, 1,4- bis- (chloromethyl) benzene, 1,4- bis- (bromomethyl) benzene, bis- (2- of 1,4-
Chloro isopropyl) benzene, 1,4- bis- (2- bromines isopropyl) benzene, (2- chloro isopropyls) benzene of 1,3,5- tri- and 1,3,5- tri- (2- bromines isopropyl)
Benzene.
20. according to the method described in any one of Claims 1 to 4 and 8~11, wherein 3-n X5For-Cl；.
21. according to the method described in any one of Claims 1 to 4 and 8~11, wherein the lewis acid is two chloroethenes
Base aluminium.
22. according to the method described in any one of Claims 1 to 4 and 8~11, wherein with the monoolefine and described total
On the basis of the total amount of yoke alkadienes, the content of the monoolefine is 80~99.5 weight %；The content of the conjugated diene is
0.5~20 weight %.
23. according to the method for claim 22, wherein using the total amount of the monoolefine and the conjugated diene as base
The content of standard, the monoolefine is 90~98 weight %；The content of the conjugated diene is 2~10 weight %.
24. according to the method described in any one of Claims 1 to 4 and 8~11, wherein the monoolefine is isobutene；
And/or
The conjugated diene is isoprene.
25. according to the method described in claim 1, wherein, the contact carries out within the temperature range of -100 DEG C to 20 DEG C.
26. according to the method for claim 25, wherein the contact carries out within the temperature range of -100 DEG C to 0 DEG C.
27. according to the method for claim 26, wherein the contact carries out within the temperature range of -100 DEG C to -40 DEG C.
28. according to the method for claim 27, wherein the contact carries out within the temperature range of -90 DEG C to -60 DEG C.
29. according to the method described in any one of Claims 1 to 4 and 8~11, wherein the polymer solvent is selected from C3~
C10Aliphatic alkane.
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| CN1735643A (en) * | 2002-11-05 | 2006-02-15 | 阿肯马公司 | Synthesis method for polydimethylketene by friedel - craft cationic polymerization of dimethylketene |
| CN102399311A (en) * | 2010-08-19 | 2012-04-04 | 中国石油化工股份有限公司 | Cationic polymerization initiation system and cationic polymerization method |
| CN102702409A (en) * | 2012-06-07 | 2012-10-03 | 北京石油化工学院 | Technology for directly producing halogenated butyl rubber using butyl glue prepared by solution method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1735643A (en) * | 2002-11-05 | 2006-02-15 | 阿肯马公司 | Synthesis method for polydimethylketene by friedel - craft cationic polymerization of dimethylketene |
| CN102399311A (en) * | 2010-08-19 | 2012-04-04 | 中国石油化工股份有限公司 | Cationic polymerization initiation system and cationic polymerization method |
| CN102702409A (en) * | 2012-06-07 | 2012-10-03 | 北京石油化工学院 | Technology for directly producing halogenated butyl rubber using butyl glue prepared by solution method |
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