CN1108324C - Nine block copolymer of butadiene, isoprene and styrene, and method for prepn. of same - Google Patents
Nine block copolymer of butadiene, isoprene and styrene, and method for prepn. of same Download PDFInfo
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- CN1108324C CN1108324C CN99111141A CN99111141A CN1108324C CN 1108324 C CN1108324 C CN 1108324C CN 99111141 A CN99111141 A CN 99111141A CN 99111141 A CN99111141 A CN 99111141A CN 1108324 C CN1108324 C CN 1108324C
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Abstract
The present invention relates to a nine-block copolymer of butadiene, isoprene and styrene, and a preparation method thereof. The block copolymer has the following symmetrical structure: S-IS-I-BI-B-BI-I-IS-S; in the symmetrical structure, S is a polystyrol block; B is a polybutadiene block; I is a polyisoprene block; BI is the trapezoid copolymer block of butadiene and isoprene; IS is the trapezoid copolymer block of isoprene and styrene; the styrene content is from 10 wt% to 50 wt%; the isoprene content is from 10 wt% to 75 wt%; the butadiene content is from 10 wt% to 75 wt%.
Description
The present invention relates to a class divinyl, isoprene, vinylbenzene nine block copolymer and preparation method thereof, this based block copolymer has following symmetrical structure: S-IS-I-BI-B-BI-I-IS-S, wherein: S is a polystyrene block, B is a polybutadiene block, I is a polyisoprene blocks, BI is divinyl, the trapezoidal copolymer block of isoprene, and IS is isoprene, the trapezoidal copolymer block of vinylbenzene.
Usually based on divinyl, isoprene, three kinds of monomeric segmented copolymers of vinylbenzene SBS, SIS are arranged; SBS is a divinyl, (wherein: B is a polybutadiene block to styrene triblock copolymer; S is a polystyrene block); SIS is isoprene, styrene triblock copolymer (wherein: I is a polyisoprene blocks, and S is a polystyrene block).With the bifunctional lithium alkylide is initiator, change the order of addition(of ingredients) of divinyl, isoprene, styrene monomer, can obtain the segmented copolymer of different structure, this based block copolymer comprises following symmetrical structure: (1) S-I-BI-B-BI-I-S (divinyl and isoprene once add, vinylbenzene list add); (2) S-I-B-I-S (divinyl, isoprene, vinylbenzene add in proper order); (3) S-B-I-B-S (isoprene, divinyl, vinylbenzene add in proper order); When divinyl, isoprene, vinylbenzene once add fashionablely, can make S-IS-I-BI-B-BI-I-IS-S; Wherein: S is a polystyrene block, and B is a polybutadiene block, and I is a polyisoprene blocks, and BI is divinyl, the trapezoidal copolymer block of isoprene, and IS is isoprene, the trapezoidal copolymer block of vinylbenzene.
The objective of the invention is to prepare a class based on divinyl, isoprene, three kinds of monomeric polynary segmented copolymers of vinylbenzene, this based block copolymer is the broad-spectrum thermoplastic elastic material of a class with the performance of SBS and SIS excellence.Hydrogenation S-IS-I-BI-B-BI-I-IS-S can be used for preparing heat-sensitive glue and pressure sensitive adhesive, has the advantage that general SBS, SIS can't compare.
Technical characterictic of the present invention is the B section among the common SBS, I section among the SIS are replaced divinyl, two kinds of monomers of isoprene by common a kind of monomer, and I section, B section and trapezoidal copolymer block BI, IS exist simultaneously.
Prepared divinyl, isoprene, the vinylbenzene nine block copolymer of the present invention has following symmetrical structure: S-IS-I-BI-B-BI-I-IS-S.The number-average molecular weight of segmented copolymer (Mn) general range is 5 * 10
4-50 * 10
4, optimum range is 10 * 10
4-30 * 10
4The general range of monomer styrene consumption is 10%-50% (weight percent, below identical), and optimum range is 20%-40%; The general range of isoprene consumption is 10%-75%, and optimum range is 20%-50%; The general range of divinyl consumption is 10%-75%, and optimum range is 20%-50%.1.2-the polybutadiene content general range is 6%-35% (weight percent, below identical), optimum range is 10%-20%; 3.4-polyisoprene content general range is 6%-35% (weight percent, below identical), optimum range is 10%-20%.
Divinyl involved in the present invention, isoprene, the preparation method is as follows for the vinylbenzene nine block copolymer: press monomer ratio with divinyl in the non-polar hydrocarbon kind solvent, isoprene, styrene monomer once joins in the reactor, monomer concentration is 10%-20% (weight percent), the non-polar hydrocarbon kind solvent is selected from a kind of varsol in nonpolar aromatic hydrocarbons and the nonpolar fatty hydrocarbon or the mixture of several varsols, generally be selected from: benzene, toluene, ethylbenzene, dimethylbenzene, pentane, hexane, heptane, octane, hexanaphthene, Mixed XYLENE, raffinate oil, open stirring, after reaching kick off temperature, the initiation reaction temperature is 30 ℃-80 ℃, adding the bifunctional lithium alkylide is initiator, the consumption of bifunctional alkyl lithium initiator is decided according to the size of multipolymer number-average molecular weight, and the number-average molecular weight scope of segmented copolymer is generally 5 * 10
4-50 * 10
4The bifunctional alkyl lithium initiator is selected from the mixture of a kind of bifunctional alkyl lithium initiator or several bifunctional alkyl lithium initiators, generally be selected from two lithiums of two haloalkane hydro carbons and the two lithiums of oligopolymer thereof, the two lithiums of naphthalene class, two lithiums of diene hydro carbons and the two lithiums of oligopolymer thereof, work as divinyl, isoprene, after the styrene monomer total overall reaction is finished, add anti-aging agent (1010 with weight ratio 1: 1 mix with 2.6.4), the consumption of anti-aging agent calculates with 1% of polymer weight, adopt traditional method that the polymkeric substance glue is carried out aftertreatment, carry out analytical test behind the product drying, obtain the S-IS-I-BI-B-BI-I-IS-S nine block copolymer.
Non-polar organic solvent used in the present invention is selected from a kind of varsol in nonpolar aromatic hydrocarbons and the nonpolar fatty hydrocarbon or the mixture of several varsols, generally be selected from: benzene, toluene, ethylbenzene, dimethylbenzene, pentane, hexane, heptane, octane, hexanaphthene, BTX aromatics (as: Mixed XYLENE), mixing-in fat hydrocarbon (as: raffinating oil), preferably from: hexane, hexanaphthene, raffinate oil.
Initiator used in the present invention is the bifunctional alkyl lithium initiator, be selected from the mixture of a kind of bifunctional alkyl lithium initiator or several bifunctional alkyl lithium initiators, as: two lithiums of two haloalkane hydro carbons and the two lithiums of oligopolymer thereof, as: LiRLi, Li (DO) nR (DO) nLi, wherein: R is that carbonatoms is the alkyl of 4-10, and DO is that carbonatoms is a kind of conjugated diene of 4-8 or the mixture of several conjugated dienes, with 1, the 3-divinyl, isoprene is good, n is the oligomerisation degree, and n is generally 2-8, is good with 3-6, two lithiums of two haloalkane hydro carbons and the two lithiums of oligopolymer thereof are selected from: 1,4-two lithium butane, 1,2-two lithiums-1,2-diphenylethane, 1,4-two lithiums-1,1,4,4-tetraphenyl butane, 1,4-dimethyl-1,4-diphenyl butane two lithiums, polyisoprene two lithium oligopolymers, polyhutadiene two lithium oligopolymers; The two lithiums of naphthalene class are selected from: naphthalene lithium, alpha-methyl-naphthalene lithium; Two lithiums of diene hydro carbons and the two lithiums of oligopolymer thereof are selected from: 1,1 '-(1, the 3-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group] two lithiums, 1,1 '-(1, the 3-penylene)-two two lithiums of [3-methyl isophthalic acid-(4-tolyl) amyl group] butadiene oligomer, 1,1 '-(1, the 3-penylene)-two two lithiums of [3-methyl isophthalic acid-(4-tolyl) amyl group] isoprene oligopolymer, 1,1 '-(1, the 4-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group] two lithiums, the two lithiums of 1,1 '-(1, the 4-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group] butadiene oligomer, 1, the two lithiums of 1 '-(1, the 4-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group] isoprene oligopolymer.
Further specify the present invention below in conjunction with embodiment, but and the scope of unrestricted claim protection of the present invention.
Embodiment 1
In 5 liters of stainless steel cauldrons that have a stirring, add 3.5 liters of hexanaphthenes, add 105 gram divinyl, 140 gram isoprene, 105 gram vinylbenzene, be warmed up to 50 ℃, add bifunctional alkyl lithium initiator 1, the two lithiums in 1 '-(1, the 3-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group], the multipolymer number-average molecular weight is 15 * 10
4Reacted 120 minutes, after divinyl, isoprene, styrene polymerization reaction are all finished, adding anti-aging agent (1010 with weight ratio 1:1 mix with 2.6.4) 3.5 restrains, adopt traditional method to carry out the glue aftertreatment, classical way specimen structure and mechanical property are adopted in dry back, and the result is as shown in table 1.
Embodiment 2-7
Polymerization process and processing condition are with embodiment 1, be vinylbenzene, isoprene, divinylic monomer proportioning difference, prepared the S-IS-I-BI-B-BI-I-IS-S nine block copolymer, polymerization process condition, product structure transitivity test result are respectively shown in 2-7 in the table 1.Table 1 polymerization process condition and product rerum natura
Annotate: S is a styrene content, and I is an isoprene content, and B is a butadiene content, and S/I/B is vinylbenzene, isoprene, divinylic monomer proportioning.
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| S(g) | 105 | 105 | 105 | 140 | 140 | 70 | 70 |
| I(g) | 140 | 105 | 70 | 105 | 70 | 140 | 105 |
| B(g) | 105 | 140 | 175 | 105 | 140 | 140 | 175 |
| S/I/B | 3/4/3 | 3/3/4 | 3/2/5 | 4/3/3 | 4/2/4 | 2/4/4 | 2/3/5 |
| Tensile strength (MPa) | 18.5 | 19.0 | 18.8 | 19.0 | 20.7 | 15.6 | 17.8 |
| Elongation at break (%) | 1400 | 1350 | 1300 | 990 | 970 | 1450 | 1350 |
Claims (15)
1. a class divinyl, isoprene, the vinylbenzene nine block copolymer, it is characterized in that this multipolymer has following symmetrical structure: S-IS-I-BI-B-BI-I-IS-S, wherein: S is a polystyrene block, B is a polybutadiene block, I is a polyisoprene blocks, BI is a divinyl, the trapezoidal copolymer block of isoprene, IS is an isoprene, the trapezoidal copolymer block of vinylbenzene, monomer styrene content is 10%-50% (weight percent), the monomer isoprene content is 10%-75% (weight percent), and the monomer butadiene content is 10%-75% (weight percent).
2. segmented copolymer according to claim 1, wherein the number-average molecular weight of segmented copolymer is 5 * 10
4-50 * 10
4
3. segmented copolymer according to claim 2, wherein the number-average molecular weight of segmented copolymer is 10 * 10
4-30 * 10
4
4. segmented copolymer according to claim 1, monomer styrene content are 20%-40% (weight percent).
5. segmented copolymer according to claim 1, monomer isoprene content are 20%-50% (weight percent).
6. segmented copolymer according to claim 1, monomer butadiene content are 20%-50% (weight percent).
7. segmented copolymer according to claim 1, in the polyhutadiene 1, the 2-structural content is 6%-35% (weight percent), in the polyisoprene 3, the 4-structural content is 6%-35% (weight percent).
8. segmented copolymer according to claim 7, in the polyhutadiene 1, the 2-structural content is 10%-20% (weight percent), in the polyisoprene 3, the 4-structural content is 10%-20% (weight percent).
9. a class divinyl, isoprene, the preparation method of vinylbenzene nine block copolymer S-IS-I-BI-B-BI-I-IS-S, it is characterized in that: in the non-polar hydrocarbon kind solvent, press monomer ratio divinyl, isoprene, styrene monomer once joins in the reactor, butadiene content be 10%-75% (weight percent), isoprene content be 10%-75% (weight percent), styrene content is 10%-50% (weight percent), monomer concentration is 10%-20% (weight percent), the non-polar hydrocarbon kind solvent is selected from a kind of varsol in nonpolar aromatic hydrocarbons and the nonpolar fatty hydrocarbon or the mixture of several varsols, open stirring, after reaching kick off temperature, the initiation reaction temperature is 30 ℃-80 ℃, adding the bifunctional lithium alkylide is initiator, the consumption of bifunctional alkyl lithium initiator is decided according to the size of multipolymer number-average molecular weight, and the number-average molecular weight of segmented copolymer is 5 * 10
4-50 * 10
4The bifunctional alkyl lithium initiator is selected from two lithiums of two haloalkane hydro carbons and the two lithiums of oligopolymer thereof, the two lithiums of naphthalene class, a kind of bifunctional alkyl lithium initiator in two lithiums of diene hydro carbons and the two lithiums of oligopolymer thereof or the mixture of several bifunctional alkyl lithium initiators, work as divinyl, isoprene, after styrene polymerization is all finished, add anti-aging agent, anti-aging agent is four [3-(3 ' 5 '-di-t-butyl-4 '-hydroxy phenyl) propionic acid] pentaerythritol ester and 2, the 6-di-tert-butyl-4-methy phenol mixes with weight ratio at 1: 1, aging inhibitor dosage is calculated with 1% of polymer weight, adopt traditional method that the polymkeric substance glue is carried out aftertreatment, carry out analytical test behind the product drying, obtain the S-IS-I-BI-B-BI-I-IS-S nine block copolymer.
10. method according to claim 9, two lithiums of wherein two haloalkane hydro carbons and the two lithiums of oligopolymer thereof are selected from: LiRLi, Li (DO) nR (DO) nLi, R is that carbonatoms is the alkyl of 4-10, DO is that carbonatoms is a kind of conjugated diene of 4-8 or the mixture of several conjugated dienes, n is the oligomerisation degree, and n is 2-8.
11. method according to claim 10, wherein conjugated diene is selected from divinyl, isoprene, and oligomerisation degree n is 3-6.
12. method according to claim 9, wherein two lithiums of diene hydro carbons and oligopolymer dilithium initiator thereof are selected from: 1,1 '-(1, the 3-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group] two lithiums, 1,1 '-(1, the 3-penylene)-two two lithiums of [3-methyl isophthalic acid-(4-tolyl) amyl group] butadiene oligomer, 1,1 '-(1, the 3-penylene)-two two lithiums of [3-methyl isophthalic acid-(4-tolyl) amyl group] isoprene oligopolymer, 1,1 '-(1, the 4-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group] two lithiums, 1,1 '-(1, the 4-penylene)-two two lithiums of [3-methyl isophthalic acid-(4-tolyl) amyl group] butadiene oligomer, the two lithiums of 1,1 '-(1, the 4-penylene)-two [3-methyl isophthalic acid-(4-tolyl) amyl group] isoprene oligopolymer.
13. method according to claim 9, wherein the two lithiums of naphthalene class are selected from: naphthalene lithium, alpha-methyl-naphthalene lithium.
14. method according to claim 9, wherein the non-polar hydrocarbon kind solvent is selected from: benzene, toluene, ethylbenzene, dimethylbenzene, pentane, hexane, heptane, octane, hexanaphthene, Mixed XYLENE, raffinate oil.
15. method according to claim 14, wherein the non-polar hydrocarbon kind solvent is selected from: hexane, hexanaphthene, raffinate oil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99111141A CN1108324C (en) | 1999-07-28 | 1999-07-28 | Nine block copolymer of butadiene, isoprene and styrene, and method for prepn. of same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99111141A CN1108324C (en) | 1999-07-28 | 1999-07-28 | Nine block copolymer of butadiene, isoprene and styrene, and method for prepn. of same |
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| CN1242382A CN1242382A (en) | 2000-01-26 |
| CN1108324C true CN1108324C (en) | 2003-05-14 |
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| CN99111141A Expired - Fee Related CN1108324C (en) | 1999-07-28 | 1999-07-28 | Nine block copolymer of butadiene, isoprene and styrene, and method for prepn. of same |
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| DE60024880T2 (en) * | 2000-02-17 | 2006-06-22 | China Petroleum And Chemical Corporation | MULTIBLOCK COPOLYMER AND ITS MANUFACTURING METHOD |
| CN106065054B (en) * | 2015-04-24 | 2018-05-18 | 中国石油化工股份有限公司 | Brominated block copolymer as fire retardant and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386125A (en) * | 1981-02-20 | 1983-05-31 | Asahi Kasei Kogyo Kabushiki Kaisha | Film, sheet or tube of a block copolymer or a composition containing the same |
| US5130377A (en) * | 1990-01-02 | 1992-07-14 | Phillips Petroleum Company | Tapered block styrene/butadiene copolymers |
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1999
- 1999-07-28 CN CN99111141A patent/CN1108324C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386125A (en) * | 1981-02-20 | 1983-05-31 | Asahi Kasei Kogyo Kabushiki Kaisha | Film, sheet or tube of a block copolymer or a composition containing the same |
| US5130377A (en) * | 1990-01-02 | 1992-07-14 | Phillips Petroleum Company | Tapered block styrene/butadiene copolymers |
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