JP2020193327A - 官能化開始剤、開始剤を作製する方法、および官能化エラストマー - Google Patents
官能化開始剤、開始剤を作製する方法、および官能化エラストマー Download PDFInfo
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- JP2020193327A JP2020193327A JP2020080236A JP2020080236A JP2020193327A JP 2020193327 A JP2020193327 A JP 2020193327A JP 2020080236 A JP2020080236 A JP 2020080236A JP 2020080236 A JP2020080236 A JP 2020080236A JP 2020193327 A JP2020193327 A JP 2020193327A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 84
- 239000003999 initiator Substances 0.000 title claims abstract description 28
- 239000000806 elastomer Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 45
- 125000003118 aryl group Chemical group 0.000 claims abstract description 19
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 claims abstract description 18
- 125000003107 substituted aryl group Chemical group 0.000 claims abstract description 18
- 239000003505 polymerization initiator Substances 0.000 claims abstract description 17
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 11
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 10
- 239000000178 monomer Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 27
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 12
- 150000001993 dienes Chemical class 0.000 claims description 9
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- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 5
- ZATOFRITFRPYBT-UHFFFAOYSA-N C1=CC=C2C([Li])=CC=CC2=C1 Chemical compound C1=CC=C2C([Li])=CC=CC2=C1 ZATOFRITFRPYBT-UHFFFAOYSA-N 0.000 claims description 5
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- 229930195733 hydrocarbon Natural products 0.000 claims description 5
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- CETVQRFGPOGIQJ-UHFFFAOYSA-N lithium;hexane Chemical compound [Li+].CCCCC[CH2-] CETVQRFGPOGIQJ-UHFFFAOYSA-N 0.000 claims description 5
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- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 5
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- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- MAHNFPMIPQKPPI-UHFFFAOYSA-N disulfur Chemical compound S=S MAHNFPMIPQKPPI-UHFFFAOYSA-N 0.000 description 3
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 3
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- 239000011591 potassium Substances 0.000 description 3
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- RTACIUYXLGWTAE-UHFFFAOYSA-N buta-1,3-diene;2-methylbuta-1,3-diene;styrene Chemical compound C=CC=C.CC(=C)C=C.C=CC1=CC=CC=C1 RTACIUYXLGWTAE-UHFFFAOYSA-N 0.000 description 1
- WFYPICNXBKQZGB-UHFFFAOYSA-N butenyne Chemical group C=CC#C WFYPICNXBKQZGB-UHFFFAOYSA-N 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920005556 chlorobutyl Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- CJSBUWDGPXGFGA-UHFFFAOYSA-N dimethyl-butadiene Natural products CC(C)=CC=C CJSBUWDGPXGFGA-UHFFFAOYSA-N 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 150000004659 dithiocarbamates Chemical class 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 125000002534 ethynyl group Chemical class [H]C#C* 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229920005555 halobutyl Polymers 0.000 description 1
- 125000004968 halobutyl group Chemical group 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- JPPLPDOXWBVPCW-UHFFFAOYSA-N s-(3-triethoxysilylpropyl) octanethioate Chemical compound CCCCCCCC(=O)SCCC[Si](OCC)(OCC)OCC JPPLPDOXWBVPCW-UHFFFAOYSA-N 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical group [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
- C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
- C08C19/44—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
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- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
- C08K5/5477—Silicon-containing compounds containing nitrogen containing nitrogen in a heterocyclic ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
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- C08C19/00—Chemical modification of rubber
- C08C19/22—Incorporating nitrogen atoms into the molecule
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/25—Incorporating silicon atoms into the molecule
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F136/06—Butadiene
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- C08F2/00—Processes of polymerisation
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Abstract
【解決手段】本発明は、アルキルリチウム化合物および式1の化合物
(式中、R1=アルキル(C1〜C8)、アリール、置換アリール、または−SiR3であり、式中、R3は、独立して、C1〜C8アルキル、好ましくは−SiMe3であり、式中、Meは、メチルまたは−Si(CH3)2C(CH3)3であり;R2=C1〜C8アルキル、アリール、もしくは置換アリール、または−SiR3、好ましくは−CH3であり;n=0〜3である)
の反応生成物を含む、官能化重合開始剤を対象とする。本発明はさらに、官能化開始剤を作製する方法、および開始剤を使用して官能化エラストマーを作製する方法を対象とする。
【選択図】なし
Description
の反応生成物を含む、官能化重合開始剤を対象とする。
の反応生成物を含む、官能化重合開始剤が開示される。
[009]一実施形態では、式1の化合物は、式2の化合物
である。
[010]官能性開始剤は、式1の化合物を、一般構造式P−Mを有する開始剤と反応させることにより作製することができ、式中、Pはヒドロカルビル基を示し、Mは、第I族または第II族の金属を示す。
[019]コポリマーは、一般に、脂肪族飽和炭化水素類、芳香族炭化水素類、またはエーテル類などの不活性有機溶媒を利用する溶液重合により一般的に調製される。そのような溶液重合で使用される溶媒は、通常は、1分子当たり約4〜約10個の炭素原子を含有し、重合の条件下で液体であろう。適切な有機溶媒のいくつかの代表的な例は、ペンタン、イソオクタン、シクロヘキサン、ノルマルヘキサン、ベンゼン、トルエン、キシレン、エチルベンゼン、テトラヒドロフラン等を、単独で、または混合して含む。例えば、溶媒は、異なるヘキサン異性体の混合物であってもよい。そのような溶液重合は、ポリマーセメント(ポリマーの高粘度溶液)の形成をもたらす。
[031]本明細書で使用される「phr」という用語は、慣行的実務に従って、「100重量部のゴムまたはエラストマー当たりの、それぞれの材料の重量部」を指す。
[034]ゴム組成物は、約1〜約150phrのシリカを含有してもよい。別の実施形態では、10〜100phrのシリカを使用してもよい。
[038]慣例的なシリカは、例えば、電子顕微鏡により測定されるような0.01〜0.05ミクロンの範囲内の平均素粒子サイズを有することが予期されるが、シリカ粒子は、サイズがさらに小さいか、または場合によってはより大きいこともある。
[042]それに限定されるものではないが、超高分子量ポリエチレン(UHMWPE)を含む微粒子充填剤、それに限定されるものではないが、米国特許第6,242,534号;米国特許第6,207,757号;米国特許第6,133,364号;米国特許第6,372,857号;米国特許第5,395,891号;または米国特許第6,127,488号に開示されているものを含む架橋微粒子ポリマーゲル、およびそれに限定されるものではないが、米国特許第5,672,639号に開示されているものを含む可塑化でんぷん複合充填剤を含む他の充填剤が、ゴム組成物で使用されてもよい。そのような他の充填剤は、1〜30phrの範囲の量で使用されてもよい。
[056]実施例1のコモノマーを、nBuLi(1:1)と反応させて、インサイチュ開始剤を産生した。TMEDA(360uL)を、nBuLi(0.5mL、1.6Mヘキサン)に添加し、65℃に予熱した。コモノマー1の溶液(0.5mL、1.6Mのヘキサン)を素早く添加し、溶液を、65℃で5分間熱老化させた。アリコート(240uL、約0.59Mの活性Li)を、ヘキサン(115.00g)中のブタジエン(12.6wt%)の溶液に添加し、重合を、1時間で65℃に加熱し、2−プロパノール中のBHTの溶液で終了させた。セメントをパンドライし、ポリマー収率は重量法で96%であった。GPC分析により、Mn=150,000/Mw=176,000g/mol(PDI=1.17)のポリマーであることが示された。
[発明の実施形態]
1. アルキルリチウム化合物および式1の化合物
の反応生成物を含む、官能化重合開始剤。
2. 式1の化合物が、式2の化合物
である、1に記載の官能化重合開始剤。
3. アルキルリチウム化合物は、n−ブチルリチウム、sec−ブチルリチウム、n−ヘキシルリチウム、n−オクチルリチウム、tertオクチルリチウム、n−デシルリチウム、フェニルリチウム、1−ナフチルリチウム、4−ブチルフェニルリチウム、p−トリルリチウム、4−フェニルブチルリチウム、シクロヘキシルリチウム、4−ブチルシクロヘキシルリチウム、および4−シクロヘキシルブチルリチウムからなる群から選択される、1に記載の官能化重合開始剤。
4. 官能化重合開始剤を作製する方法であって、炭化水素溶媒中のアルキルリチウム化合物を、式1の化合物
と反応させる工程を含む、方法。
5. 式1の化合物が、式2の化合物
である、4に記載の方法。
6. アルキルリチウム化合物は、n−ブチルリチウム、sec−ブチルリチウム、n−ヘキシルリチウム、n−オクチルリチウム、tertオクチルリチウム、n−デシルリチウム、フェニルリチウム、1−ナフチルリチウム、4−ブチルフェニルリチウム、p−トリルリチウム、4−フェニルブチルリチウム、シクロヘキシルリチウム、4−ブチルシクロヘキシルリチウム、および4−シクロヘキシルブチルリチウムからなる群から選択される、4に記載の方法。
7. 官能化エラストマーを作製する方法であって、官能化重合開始剤が存在する状態で、少なくとも1つの共役ジエンモノマーおよび任意に芳香族ビニルモノマーを重合する工程を含み、官能化重合開始剤は、アルキルリチウム化合物および式1の化合物
の反応生成物を含む、方法。
8. 式1の化合物が、式2の化合物
である、7に記載の方法。
9. 重合する工程の前に、アルキルリチウム化合物および式1の化合物の反応生成物は、炭化水素溶媒中のアルキルリチウム化合物を式1の化合物と反応させる工程により形成される、7に記載の方法。
10. アルキルリチウム化合物および式1の化合物の反応生成物を形成する工程の後に、少なくとも1つのジエンモノマー、および任意に芳香族ビニルモノマーを添加する工程をさらに含む、9に記載の方法。
11. 共役ジエンモノマーは、1,3−ブタジエン、イソプレン、1,3−ペンタジエン、2,3−ジメチル−1,3−ブタジエン、2−メチル−1,3−ペンタジエン、2,3−ジメチル−1,3−ペンタジエン、2−フェニル−1,3−ブタジエン、および4,5−ジエチル−1,3−オクタジエンからなる群から選択される、7に記載の方法。
12. ビニル芳香族モノマーは、スチレン、1−ビニルナフタレン、3−メチルスチレン、3,5−ジエチルスチレン、4−プロピルスチレン、2,4,6−トリメチルスチレン、4−ドデシルスチレン、3−メチル−5−ノルマル−ヘキシルスチレン、4−フェニルスチレン、2−エチル−4−ベンジルスチレン、3,5−ジフェニルスチレン、2,3,4,5−テトラエチルスチレン、3−エチル−1−ビニルナフタレン、6−イソプロピル−1−ビニルナフタレン、6−シクロヘキシル−1−ビニルナフタレン、7−ドデシル−2−ビニルナフタレン、およびα−メチルスチレンからなる群から選択される、7に記載の方法。
13. 第1のモノマーは、1,3−ブタジエンである、7に記載の方法。
14. 第1のモノマーは、1,3−ブタジエンおよびスチレンを含む、7に記載の方法。
15. アルキルリチウム化合物は、n−ブチルリチウム、sec−ブチルリチウム、n−ヘキシルリチウム、n−オクチルリチウム、tertオクチルリチウム、n−デシルリチウム、フェニルリチウム、1−ナフチルリチウム、4−ブチルフェニルリチウム、p−トリルリチウム、4−フェニルブチルリチウム、シクロヘキシルリチウム、4−ブチルシクロヘキシルリチウム、および4−シクロヘキシルブチルリチウムからなる群から選択される、7に記載の方法。
16. 7に記載の方法により作られる官能化エラストマー。
Claims (5)
- アルキルリチウム化合物および式1の化合物
の反応生成物であることを特徴とする、官能化重合開始剤。 - 式1の前記化合物は、式2の化合物
であることを特徴とする、請求項1に記載の官能化重合開始剤。 - 前記アルキルリチウム化合物は、n−ブチルリチウム、sec−ブチルリチウム、n−ヘキシルリチウム、n−オクチルリチウム、tertオクチルリチウム、n−デシルリチウム、フェニルリチウム、1−ナフチルリチウム、4−ブチルフェニルリチウム、p−トリルリチウム、4−フェニルブチルリチウム、シクロヘキシルリチウム、4−ブチルシクロヘキシルリチウム、および4−シクロヘキシルブチルリチウムからなる群から選択されることを特徴とする、請求項1に記載の官能化重合開始剤。
- 官能化重合開始剤を作製する方法であって、炭化水素溶媒中のアルキルリチウム化合物を、式1の化合物
と反応させる工程を特徴する、方法。 - 官能化エラストマーを作製する方法であって、官能化重合開始剤が存在する状態で、少なくとも1つの共役ジエンモノマーおよび任意に芳香族ビニルモノマーを重合する工程を含むことを特徴とし、前記官能化重合開始剤は、アルキルリチウム化合物および式1の化合物
の反応生成物を含む、方法。
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