JP6667015B2 - 変性共役ジエン系重合体及びその製造方法 - Google Patents
変性共役ジエン系重合体及びその製造方法 Download PDFInfo
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- JP6667015B2 JP6667015B2 JP2018560821A JP2018560821A JP6667015B2 JP 6667015 B2 JP6667015 B2 JP 6667015B2 JP 2018560821 A JP2018560821 A JP 2018560821A JP 2018560821 A JP2018560821 A JP 2018560821A JP 6667015 B2 JP6667015 B2 JP 6667015B2
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- conjugated diene
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- lithium
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- 229920000642 polymer Polymers 0.000 title claims description 91
- 150000001993 dienes Chemical class 0.000 title claims description 90
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 125000004432 carbon atom Chemical group C* 0.000 claims description 59
- 239000000178 monomer Substances 0.000 claims description 54
- 239000000126 substance Substances 0.000 claims description 48
- 150000002430 hydrocarbons Chemical group 0.000 claims description 45
- 150000001875 compounds Chemical class 0.000 claims description 40
- 238000006116 polymerization reaction Methods 0.000 claims description 26
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 22
- 239000003607 modifier Substances 0.000 claims description 20
- 229910052717 sulfur Inorganic materials 0.000 claims description 20
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 18
- 125000001424 substituent group Chemical group 0.000 claims description 18
- 229920002554 vinyl polymer Polymers 0.000 claims description 18
- 125000003545 alkoxy group Chemical group 0.000 claims description 16
- -1 naphthyl sodium Chemical compound 0.000 claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- 125000000524 functional group Chemical group 0.000 claims description 14
- 125000004434 sulfur atom Chemical group 0.000 claims description 14
- 239000004215 Carbon black (E152) Substances 0.000 claims description 11
- 125000005843 halogen group Chemical group 0.000 claims description 11
- 229930195733 hydrocarbon Natural products 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 10
- 150000002902 organometallic compounds Chemical class 0.000 claims description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 8
- 150000002367 halogens Chemical class 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 7
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 125000005842 heteroatom Chemical group 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims description 4
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 3
- 125000004474 heteroalkylene group Chemical group 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 claims description 2
- CVIZGFJYCJAIID-UHFFFAOYSA-N 1-[(4-ethenylphenoxy)methyl]pyrrolidine Chemical compound C1=CC(C=C)=CC=C1OCN1CCCC1 CVIZGFJYCJAIID-UHFFFAOYSA-N 0.000 claims description 2
- LSLPEPIIRSZSMN-UHFFFAOYSA-N 1-[(4-ethenylphenyl)methoxymethyl]pyrrolidine Chemical compound C1=CC(C=C)=CC=C1COCN1CCCC1 LSLPEPIIRSZSMN-UHFFFAOYSA-N 0.000 claims description 2
- XMVLETBDLSNJGT-UHFFFAOYSA-N 1-[(4-ethenylphenyl)methylsulfanylmethyl]pyrrolidine Chemical compound C1=CC(C=C)=CC=C1CSCN1CCCC1 XMVLETBDLSNJGT-UHFFFAOYSA-N 0.000 claims description 2
- GRVAGTQLVKBPLL-UHFFFAOYSA-N 1-[2-(4-ethenylphenyl)ethyl]azepane Chemical compound C1=CC(C=C)=CC=C1CCN1CCCCCC1 GRVAGTQLVKBPLL-UHFFFAOYSA-N 0.000 claims description 2
- SJDIZVIRTRTYMN-UHFFFAOYSA-N 1-[2-(4-ethenylphenyl)ethyl]piperidine Chemical compound C1=CC(C=C)=CC=C1CCN1CCCCC1 SJDIZVIRTRTYMN-UHFFFAOYSA-N 0.000 claims description 2
- VLVYXBQNKNWWRD-UHFFFAOYSA-N 1-phenyl-n,n-dipropylprop-2-en-1-amine Chemical compound CCCN(CCC)C(C=C)C1=CC=CC=C1 VLVYXBQNKNWWRD-UHFFFAOYSA-N 0.000 claims description 2
- NUNQKTCKURIZQX-UHFFFAOYSA-N 2-(2-ethoxyethoxy)-2-methylpropane Chemical compound CCOCCOC(C)(C)C NUNQKTCKURIZQX-UHFFFAOYSA-N 0.000 claims description 2
- TYENDWOHUUAIJH-UHFFFAOYSA-N 2-[(4-ethenylphenyl)methoxy]-n,n-dimethylethanamine Chemical compound CN(C)CCOCC1=CC=C(C=C)C=C1 TYENDWOHUUAIJH-UHFFFAOYSA-N 0.000 claims description 2
- NCQJVXBINXQZPK-UHFFFAOYSA-N 2-[(4-ethenylphenyl)methylsulfanyl]-n,n-dimethylethanamine Chemical compound CN(C)CCSCC1=CC=C(C=C)C=C1 NCQJVXBINXQZPK-UHFFFAOYSA-N 0.000 claims description 2
- ZFFBIQMNKOJDJE-UHFFFAOYSA-N 2-bromo-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(Br)C(=O)C1=CC=CC=C1 ZFFBIQMNKOJDJE-UHFFFAOYSA-N 0.000 claims description 2
- CSBDTEMAXHVRBB-UHFFFAOYSA-N 2-ethoxy-n,n-dimethylethanamine Chemical compound CCOCCN(C)C CSBDTEMAXHVRBB-UHFFFAOYSA-N 0.000 claims description 2
- WJUHASGUDSZAIJ-UHFFFAOYSA-N 4-[2-(4-ethenylphenyl)ethyl]morpholine Chemical compound C1=CC(C=C)=CC=C1CCN1CCOCC1 WJUHASGUDSZAIJ-UHFFFAOYSA-N 0.000 claims description 2
- BRMQNULGVCNVOT-UHFFFAOYSA-N 4-phenyl-3-trimethylsilylbut-3-en-1-amine Chemical compound C[Si](C)(C)C(=CC1=CC=CC=C1)CCN BRMQNULGVCNVOT-UHFFFAOYSA-N 0.000 claims description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- NTYDXFVCCCPXRG-UHFFFAOYSA-N [Li]C(C)(C)CC(C)(C)C Chemical compound [Li]C(C)(C)CC(C)(C)C NTYDXFVCCCPXRG-UHFFFAOYSA-N 0.000 claims description 2
- FYOQEFGAZKEPGG-UHFFFAOYSA-N [Li]C1=CC=C(C)C=C1 Chemical compound [Li]C1=CC=C(C)C=C1 FYOQEFGAZKEPGG-UHFFFAOYSA-N 0.000 claims description 2
- SEVZJBPKDJZGFW-UHFFFAOYSA-N [Li]C1=CC=C(CCCC)C=C1 Chemical compound [Li]C1=CC=C(CCCC)C=C1 SEVZJBPKDJZGFW-UHFFFAOYSA-N 0.000 claims description 2
- XAGXFZXSTCZIQR-UHFFFAOYSA-N [Li]C1CC(CCCCCCC)CC(CCCCCCC)C1 Chemical compound [Li]C1CC(CCCCCCC)CC(CCCCCCC)C1 XAGXFZXSTCZIQR-UHFFFAOYSA-N 0.000 claims description 2
- LFASRCHQAYIROH-UHFFFAOYSA-N [Li]C1CCCC1 Chemical compound [Li]C1CCCC1 LFASRCHQAYIROH-UHFFFAOYSA-N 0.000 claims description 2
- SHJXVDAAVHAKFB-UHFFFAOYSA-N [Li]CCCCCCCCCC Chemical compound [Li]CCCCCCCCCC SHJXVDAAVHAKFB-UHFFFAOYSA-N 0.000 claims description 2
- LEKSIJZGSFETSJ-UHFFFAOYSA-N cyclohexane;lithium Chemical compound [Li]C1CCCCC1 LEKSIJZGSFETSJ-UHFFFAOYSA-N 0.000 claims description 2
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- BLHLJVCOVBYQQS-UHFFFAOYSA-N ethyllithium Chemical compound [Li]CC BLHLJVCOVBYQQS-UHFFFAOYSA-N 0.000 claims description 2
- AFRJJFRNGGLMDW-UHFFFAOYSA-N lithium amide Chemical compound [Li+].[NH2-] AFRJJFRNGGLMDW-UHFFFAOYSA-N 0.000 claims description 2
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 claims description 2
- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 claims description 2
- CETVQRFGPOGIQJ-UHFFFAOYSA-N lithium;hexane Chemical compound [Li+].CCCCC[CH2-] CETVQRFGPOGIQJ-UHFFFAOYSA-N 0.000 claims description 2
- NRUBUZBAZRTHHX-UHFFFAOYSA-N lithium;propan-2-ylazanide Chemical compound [Li+].CC(C)[NH-] NRUBUZBAZRTHHX-UHFFFAOYSA-N 0.000 claims description 2
- XBEREOHJDYAKDA-UHFFFAOYSA-N lithium;propane Chemical compound [Li+].CC[CH2-] XBEREOHJDYAKDA-UHFFFAOYSA-N 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- DVSDBMFJEQPWNO-UHFFFAOYSA-N methyllithium Chemical compound C[Li] DVSDBMFJEQPWNO-UHFFFAOYSA-N 0.000 claims description 2
- APSLNSNWZSWRND-UHFFFAOYSA-N n'-[(4-ethenylphenyl)methyl]-n,n,n'-trimethylethane-1,2-diamine Chemical compound CN(C)CCN(C)CC1=CC=C(C=C)C=C1 APSLNSNWZSWRND-UHFFFAOYSA-N 0.000 claims description 2
- UGECPXXEZQMPHE-UHFFFAOYSA-N n,n-diethyl-1-phenylprop-2-en-1-amine Chemical compound CCN(CC)C(C=C)C1=CC=CC=C1 UGECPXXEZQMPHE-UHFFFAOYSA-N 0.000 claims description 2
- UQADNXUWLBEGLY-UHFFFAOYSA-N n,n-diethyl-4-phenylbut-3-en-1-amine Chemical compound CCN(CC)CCC=CC1=CC=CC=C1 UQADNXUWLBEGLY-UHFFFAOYSA-N 0.000 claims description 2
- HQHSMYARHRXIDS-UHFFFAOYSA-N n,n-dimethyl-1-phenylprop-2-en-1-amine Chemical compound CN(C)C(C=C)C1=CC=CC=C1 HQHSMYARHRXIDS-UHFFFAOYSA-N 0.000 claims description 2
- UBHHTPOLMACCDD-UHFFFAOYSA-N n,n-dimethyl-4-phenylbut-3-en-1-amine Chemical compound CN(C)CCC=CC1=CC=CC=C1 UBHHTPOLMACCDD-UHFFFAOYSA-N 0.000 claims description 2
- BBCPGIUPKBWOKJ-UHFFFAOYSA-N n-phenyl-n-(1-phenylprop-2-enyl)aniline Chemical compound C=1C=CC=CC=1C(C=C)N(C=1C=CC=CC=1)C1=CC=CC=C1 BBCPGIUPKBWOKJ-UHFFFAOYSA-N 0.000 claims description 2
- NHKJPPKXDNZFBJ-UHFFFAOYSA-N phenyllithium Chemical compound [Li]C1=CC=CC=C1 NHKJPPKXDNZFBJ-UHFFFAOYSA-N 0.000 claims description 2
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 3
- MDUGGYGKNFVNCB-UHFFFAOYSA-N 1-(4-ethenylphenyl)-n-methyl-n-(pyrrolidin-1-ylmethyl)methanamine Chemical compound C=1C=C(C=C)C=CC=1CN(C)CN1CCCC1 MDUGGYGKNFVNCB-UHFFFAOYSA-N 0.000 claims 1
- LMAFWBCYAPNOFK-UHFFFAOYSA-N 1-[2-(4-ethenylphenyl)ethyl]pyrrolidine Chemical compound C1=CC(C=C)=CC=C1CCN1CCCC1 LMAFWBCYAPNOFK-UHFFFAOYSA-N 0.000 claims 1
- 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 1
- CPWWMPHQQOXHIS-UHFFFAOYSA-N n-butyl-n-(1-phenylprop-2-enyl)butan-1-amine Chemical compound CCCCN(CCCC)C(C=C)C1=CC=CC=C1 CPWWMPHQQOXHIS-UHFFFAOYSA-N 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 description 52
- 239000005060 rubber Substances 0.000 description 52
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- 230000000694 effects Effects 0.000 description 22
- 239000000203 mixture Substances 0.000 description 21
- 238000005299 abrasion Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 15
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 14
- 239000000377 silicon dioxide Substances 0.000 description 13
- 244000043261 Hevea brasiliensis Species 0.000 description 11
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- 239000004322 Butylated hydroxytoluene Substances 0.000 description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
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- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 4
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- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
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- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
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- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical group C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C08C19/22—Incorporating nitrogen atoms into the molecule
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- C08C19/25—Incorporating silicon atoms into the molecule
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- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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Landscapes
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Description
本出願は、2016年11月28日付韓国特許出願第10−2016−0159347号及び2017年11月6日付韓国特許出願第10−2017−0146778号に基づいた優先権の利益を主張し、当該韓国特許出願の文献に開示されている全ての内容は本明細書の一部として含まれる。
<実施例1>
20Lのオートクレーブ反応器に、スチレン270g、1,3−ブタジエン710g及びノルマルヘキサン5,000g、極性添加剤として2,2−ビス(2−オキソラニル)プロパン1.3gを入れた後、反応器の内部温度を40℃に調節した。反応器の内部温度が40℃に到達した時、n−ブチルリチウム4mmolを反応器に投入し断熱昇温反応を進行させた。反応から20分程度経過した後、1,3−ブタジエン20gを投入し、重合体の末端をブタジエンでキャッピング(capping)した。5分後、化学式1−1で表される化合物1.43g(4mmol)を投入し、15分間反応させた。この後、エタノールを利用して重合反応を停止させ、酸化防止剤であるBHT(ブチル化ヒドロキシトルエン)がヘキサンに0.3重量%溶解されている溶液45mlを添加した。その結果得られた重合物を、スチームで加熱した温水に入れて撹拌し、溶媒を取り除いた後ロール乾燥して残量の溶媒と水を取り除き、変性共役ジエン系重合体を製造した。このように製造された変性共役ジエン系重合体に対する分析の結果は、下記表1に示した。
前記実施例1において、前記化学式1−1で表される化合物の代わり、下記化学式1−2で表される化合物を1.63g(4mmol)投入したことを除いては、前記実施例1と同様の方法で実施した。
前記実施例1において、前記化学式1−1で表される化合物の代わり、下記化学式1−3で表される化合物を1.34g(4mmol)投入したことを除いては、前記実施例1と同様の方法で実施した。
20Lのオートクレーブ反応器に、スチレン270g、1,3−ブタジエン710g及びノルマルヘキサン5,000g、極性添加剤として2,2−ビス(2−オキソラニル)プロパン1.3gを入れた後、反応器の内部温度を40℃に調節した。反応器の内部温度が40℃に到達した時、n−ブチルリチウム4mmolを反応器に投入し、断熱昇温反応を進行させた。反応から20分程度経過した後、1,3−ブタジエン20gを投入し、重合体の末端をブタジエンでキャッピング(capping)した。この後、エタノールを利用して重合反応を停止させ、酸化防止剤であるBHT(ブチル化ヒドロキシトルエン)がヘキサンに0.3重量%溶解されている溶液45mlを添加した。その結果得られた重合物を、スチームで加熱した温水に入れて撹拌し、溶媒を取り除いた後ロール乾燥して残量の溶媒と水を取り除き、未変性共役ジエン系重合体を製造した。
前記実施例1において、前記化学式1−1で表される化合物の代わり、テトラエトキシシラン(tetraethoxysilane、TESO)を0.835g(4mmol)投入したことを除いては、前記実施例1と同様の方法で実施した。
前記実施例1において、前記化学式1−1で表される化合物の代わり、N,N−ジエチルアミノプロピルトリエトキシシラン(N,N−diethylaminopropyl triethoxysilane)を1.12g(4mmol)投入したことを除いては、前記実施例1と同様の方法で実施した。
[実験例1]
前記実施例及び比較例で製造された変性共役ジエン系重合体に対し、それぞれ重量平均分子量(Mw、X104g/mol)、数平均分子量(Mn、X104g/mol)、分子量分布(MWD)及びムーニー粘度(MV)をそれぞれ測定した。結果を下記表1に示した。
前記実施例及び比較例で製造された変性共役ジエン系重合体を含むゴム組成物、及びこれから製造された成形品の物性を比較分析するために、引張特性、耐磨耗性及び濡れた路面への抵抗性をそれぞれ測定し、その結果を下記表3に示した。
実施例及び比較例の変性共役ジエン系重合体を原料ゴムとして、下記表2に示した配合条件で配合した。表2中の原料は、ゴム100重量部基準に対する各重量部である。
引張特性は、ASTM 412の引張試験法に準じて各試験片を製造し、前記試験片の切断時の引張強度及び300%伸張時の引張応力(300%モデュラス)を測定した。具体的に、引張特性はUniversal Test Machin 4204(Instron社)引張試験機器を利用し、室温で50cm/minの速度で測定した。
Akron摩耗試験機器を用い、荷重6パウンド、1000回転の摩耗量を測定して指数化した。指数値が小さいほど耐磨耗性に優れることを示す。
粘弾性特性は、動的機械分析機(TA社)を利用し、ねじりモードで周波数10Hz、各測定温度(−60℃〜60℃)で変形を変化させtan δを測定した。低温0℃ tan δが高いものであるほど、濡れた路面への抵抗性に優れり、高温60℃ tan δが低いほどヒステリシス損失が少なく、低走行抵抗性(燃費性)に優れることを示す。
Claims (14)
- 共役ジエン系単量体由来の反復単位を含み、片側末端に下記化学式1で表される化合物を含む変性剤由来の官能基を含む、変性共役ジエン系重合体。
前記化学式1において、
Z1及びZ2はそれぞれ独立的に水素、炭素数1から30の一価炭化水素基、または下記化学式2で表される置換基であり、この際、Z1及びZ2のうち必ず一つ以上は、下記化学式2で表される置換基であり、
前記化学式2において、
X1はSまたはN原子であり、X1がS原子の場合nは1であって、X1がN原子の場合nは2であり、A1は炭素数1から30の二価炭化水素基であり、R1からR3は、それぞれ独立的にハロゲン、炭素数1から30の一価炭化水素基、または炭素数1から30のアルコキシ基であり、この際、R1からR3のうち必ず一つ以上はハロゲン基、または炭素数1から30のアルコキシ基である。 - 共役ジエン系単量体由来の反復単位、及び下記化学式3で表される化合物を含む変性単量体由来の反復単位を含み、片側末端に下記化学式1で表される化合物を含む変性剤由来の官能基を含む、変性共役ジエン系重合体。
前記化学式1において、
Z1及びZ2はそれぞれ独立的に水素、炭素数1から30の一価炭化水素基、または下記化学式2で表される置換基であり、この際、Z1及びZ2のうち必ず一つ以上は、下記化学式2で表される置換基であり、
前記化学式2において、
X1はSまたはN原子であり、X1がS原子の場合nは1であって、X1がN原子の場合nは2であり、A1は炭素数1から30の二価炭化水素基であり、R1からR3は、それぞれ独立的にハロゲン、炭素数1から30の一価炭化水素基、または炭素数1から30のアルコキシ基であり、この際、R1からR3のうち必ず一つ以上はハロゲン基、または炭素数1から30のアルコキシ基であり、
前記化学式3において、
R4、R5及びR6はそれぞれ独立的に水素、または炭素数1から20の一価炭化水素基であり、
R7は単結合、炭素数1から20の二価炭化水素基、またはNR10、O及びSからなる群から選択される1つ以上のヘテロ原子を含有するヘテロアルキレン基であって、
R8及びR9はそれぞれ独立的に炭素数1から30の一価炭化水素基、もしくは炭素数1から30の一価炭化水素基で1、2または3置換されたシリル基であるか、または、R8及びR9が互いに結合し、隣接したN原子とともに炭素数3から20の飽和または不飽和の環状構造を形成し、前記R8及びR9が環状構造を形成する場合、NR11、O及びSからなる群から選択される1つ以上のヘテロ原子を含有してよく、
R10及びR11は、それぞれ独立的に炭素数1から30の一価炭化水素基、または炭素数1から30の一価炭化水素基で1、2または3置換されたシリル基である。 - 前記化学式1において、
Z1及びZ2はそれぞれ独立的に水素、または下記化学式2で表される置換基であり、この際、Z1及びZ2のうち必ず一つ以上は前記化学式2で表される置換基であり、
前記化学式2において、
X1はSまたはN原子であり、X1がS原子の場合nは1であって、X1がN原子の場合nは2であり、A1は炭素数1から10の二価炭化水素基であり、R1からR3は、それぞれ独立的にハロゲン、炭素数1から10の一価炭化水素基、または炭素数1から10のアルコキシ基であり、この際、R1からR3のうち必ず一つ以上はハロゲン基、または炭素数1から10のアルコキシ基である、請求項1または2に記載の変性共役ジエン系重合体。 - 前記化学式3で表される化合物は、
N,N−ジメチルビニルベンジルアミン、
N,N−ジエチルビニルベンジルアミン、
N,N−ジプロピルビニルベンジルアミン、
N,N−ジブチルビニルベンジルアミン、
N,N−ジフェニルビニルベンジルアミン、
2−ジメチルアミノエチルスチレン、
2−ジエチルアミノエチルスチレン、
2−ビス(トリメチルシリル)アミノエチルスチレン、
1−(4−N,N−ジメチルアミノフェニル)−1−フェニルエチレン、
N,N−ジメチル−2−(4−ビニルベンジルオキシ)エチルアミン、
N,N,N’−トリメチル−N’−(4−ビニルベンジル)エタン−1,2−ジアミン、
N,N−ジメチル−2−((4−ビニルベンジル)チオ)エチルアミン、
4−(2−ピロリジノエチル)スチレン、
4−(2−ピペリジノエチル)スチレン、
4−(2−ヘキサメチレンイミノエチル)スチレン、
4−(2−モルホリノエチル)スチレン、
4−(2−チアジノエチル)スチレン、
4−(2−N−メチルピペラジノエチル)スチレン、
1−((4−ビニルフェノキシ)メチル)ピロリジン、
1−(4−ビニルベンジルオキシメチル)ピロリジン、
1−((4−ビニルベンジル)チオメチル)ピロリジン及び
N−メチル−1−(ピロリジン−1−イル)−N−(4−ビニルベンジル)メチルアミンからなる群から選択される1つ以上である、請求項2〜4のいずれか一項に記載の変性共役ジエン系重合体。 - 前記変性共役ジエン系重合体は、芳香族ビニル系単量体由来の反復単位をさらに含むものである、請求項1〜5のいずれか一項に記載の変性共役ジエン系重合体。
- 前記変性共役ジエン系重合体は、数平均分子量(Mn)が5,000g/molから2,000,000g/molである、請求項1〜6のいずれか一項に記載の変性共役ジエン系重合体。
- 前記変性共役ジエン系重合体は、分子量分布(Mw/Mn)が1から5である、請求項1〜7のいずれか一項に記載の変性共役ジエン系重合体。
- 有機金属化合物を含む炭化水素溶媒の中で、共役ジエン系単量体、または芳香族ビニル系単量体及び共役ジエン系単量体を重合し、有機金属が結合された活性重合体を製造する段階(S1)と、
前記活性重合体及び下記化学式1で表される化合物を含む変性剤と反応させる段階(S2)を含む、変性共役ジエン系重合体の製造方法。
Z1及びZ2はそれぞれ独立的に水素、炭素数1から30の一価炭化水素基、または下記化学式2で表される置換基であり、この際、Z1及びZ2のうち必ず一つ以上は下記化学式2で表される置換基であり、
X1はSまたはN原子であり、X1がS原子の場合nは1であって、X1がN原子の場合nは2であり、A1は炭素数1から30の二価炭化水素基であり、R1からR3は、それぞれ独立的にハロゲン、炭素数1から30の一価炭化水素基、または炭素数1から30のアルコキシ基であり、この際、R1からR3のうち必ず一つ以上はハロゲン基、または炭素数1から30のアルコキシ基である。 - 前記(S1)段階の重合の際、下記化学式3で表される化合物を含む変性単量体を含むことにより重合が実施される、請求項9に記載の変性共役ジエン系重合体の製造方法。
R4、R5及びR6は、それぞれ独立的に水素、または炭素数1から20の一価炭化水素基であり、
R7は単結合、炭素数1から20の二価炭化水素基、またはNR10、O及びSからなる群から選択される1つ以上のヘテロ原子を含有するヘテロアルキレン基であり、
R8及びR9は、それぞれ独立的に炭素数1から30の一価炭化水素基、もしくは炭素数1から30の一価炭化水素基で1、2または3置換されたシリル基であるか、または、R8及びR9が互いに結合し、隣接したN原子とともに炭素数3から20の飽和または不飽和の環状構造を形成し、前記R8及びR9が環状構造を形成する場合、NR11、O及びSからなる群から選択される1種以上のヘテロ原子を含有してよく、
R10及びR11は、それぞれ独立的に炭素数1から30の一価炭化水素基、または炭素数1から30の一価炭化水素基で1、2または3置換されたシリル基である。 - 前記有機金属化合物は、単量体の合計100gを基準に0.01mmolから10mmolで用いられる、請求項9または10に記載の変性共役ジエン系重合体の製造方法。
- 前記有機金属化合物は、メチルリチウム、エチルリチウム、プロピルリチウム、n−ブチルリチウム、s−ブチルリチウム、t−ブチルリチウム、ヘキシルリチウム、n−デシルリチウム、t−オクチルリチウム、フェニルリチウム、1−ナフチルリチウム、n−エイコシルリチウム、4−ブチルフェニルリチウム、4−トリルリチウム、シクロヘキシルリチウム、3,5−ジ−n−ヘプチルシクロヘキシルリチウム、4−シクロペンチルリチウム、ナフチルナトリウム、ナフチルカリウム、リチウムアルコキシド、ナトリウムアルコキシド、カリウムアルコキシド、リチウムスルホネート、ナトリウムスルホネート、カリウムスルホネート、リチウムアミド、ナトリウムアミド、カリウムアミド及びリチウムイソプロピルアミドからなる群から選択される1つ以上である、請求項9〜11のいずれか一項に記載の変性共役ジエン系重合体の製造方法。
- 前記(S1)段階の重合は、極性添加剤を含んで実施される、請求項9〜12のいずれか一項に記載の変性共役ジエン系重合体の製造方法。
- 前記極性添加剤は、テトラヒドロフラン、ジテトラヒドロフリルプロパン、ジエチルエーテル、シクロアミルエーテル、ジプロピルエーテル、エチレンメチルエーテル、エチレンジメチルエーテル、ジエチルグリコール、ジメチルエーテル、tert−ブトキシエトキシエタン、ビス(3−ジメチルアミノエチル)エーテル、(ジメチルアミノエチル)エチルエーテル、トリメチルアミン、トリエチルアミン、トリプロピルアミン及びテトラメチルエチレンジアミンからなる群から選択される1つ以上である、請求項13に記載の変性共役ジエン系重合体の製造方法。
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