JP2017538788A - 変性共役ジエン系重合体、これを含む変性ゴム組成物および変性共役ジエン系重合体の製造方法 - Google Patents
変性共役ジエン系重合体、これを含む変性ゴム組成物および変性共役ジエン系重合体の製造方法 Download PDFInfo
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- JP2017538788A JP2017538788A JP2016554594A JP2016554594A JP2017538788A JP 2017538788 A JP2017538788 A JP 2017538788A JP 2016554594 A JP2016554594 A JP 2016554594A JP 2016554594 A JP2016554594 A JP 2016554594A JP 2017538788 A JP2017538788 A JP 2017538788A
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- conjugated diene
- diene polymer
- modified conjugated
- chemical formula
- monomer
- Prior art date
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- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
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- 150000001339 alkali metal compounds Chemical class 0.000 claims description 9
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- 0 CC*1CC*(*)CC1 Chemical compound CC*1CC*(*)CC1 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
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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 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 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
- SEPPVOUBHWNCAW-FNORWQNLSA-N (E)-4-oxonon-2-enal Chemical compound CCCCCC(=O)\C=C\C=O SEPPVOUBHWNCAW-FNORWQNLSA-N 0.000 description 1
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- VDNSZPNSUQRUMS-UHFFFAOYSA-N 1-cyclohexyl-4-ethenylbenzene Chemical compound C1=CC(C=C)=CC=C1C1CCCCC1 VDNSZPNSUQRUMS-UHFFFAOYSA-N 0.000 description 1
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- OIEANVCCDIRIDJ-UHFFFAOYSA-N 1-ethenyl-5-hexylnaphthalene Chemical compound C1=CC=C2C(CCCCCC)=CC=CC2=C1C=C OIEANVCCDIRIDJ-UHFFFAOYSA-N 0.000 description 1
- MDRVHDXASYPUCB-UHFFFAOYSA-N 1-methyl-4-(2-phenylethenyl)benzene Chemical compound C1=CC(C)=CC=C1C=CC1=CC=CC=C1 MDRVHDXASYPUCB-UHFFFAOYSA-N 0.000 description 1
- IGGDKDTUCAWDAN-UHFFFAOYSA-N 1-vinylnaphthalene Chemical compound C1=CC=C2C(C=C)=CC=CC2=C1 IGGDKDTUCAWDAN-UHFFFAOYSA-N 0.000 description 1
- VUFKMYLDDDNUJS-UHFFFAOYSA-N 2-(ethoxymethyl)oxolane Chemical compound CCOCC1CCCO1 VUFKMYLDDDNUJS-UHFFFAOYSA-N 0.000 description 1
- GTEXIOINCJRBIO-UHFFFAOYSA-N 2-[2-(dimethylamino)ethoxy]-n,n-dimethylethanamine Chemical compound CN(C)CCOCCN(C)C GTEXIOINCJRBIO-UHFFFAOYSA-N 0.000 description 1
- CSBDTEMAXHVRBB-UHFFFAOYSA-N 2-ethoxy-n,n-dimethylethanamine Chemical compound CCOCCN(C)C CSBDTEMAXHVRBB-UHFFFAOYSA-N 0.000 description 1
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- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
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- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
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- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
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- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 description 1
- SZAVVKVUMPLRRS-UHFFFAOYSA-N lithium;propane Chemical compound [Li+].C[CH-]C SZAVVKVUMPLRRS-UHFFFAOYSA-N 0.000 description 1
- 238000010551 living anionic polymerization reaction Methods 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
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- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
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- 239000008117 stearic acid Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
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- 238000004073 vulcanization Methods 0.000 description 1
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- 238000005303 weighing Methods 0.000 description 1
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- 239000011787 zinc oxide Substances 0.000 description 1
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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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
-
- 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
- C08C19/22—Incorporating nitrogen atoms into the molecule
-
- 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
-
- 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
- C08C19/26—Incorporating metal atoms into the molecule
-
- 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
- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F236/02—Copolymers 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
- C08F236/04—Copolymers 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
- C08F236/10—Copolymers 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 with vinyl-aromatic monomers
-
- 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
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers 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
- C08F36/04—Homopolymers and copolymers 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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Abstract
Description
実施例1
それぞれ8L、8L、16L、16Lのオートクレーブ反応器4つが直列に連結された連続反応器の第1反応器に、それぞれ、60wt%のスチレン溶液344g/h、60wt%の1,3−ブタジエン溶液860g/h、ノルマルヘキサン3550g/h、極性添加剤として3wt%のエチルテトラヒドロフルフリル)エーテル溶液を33.7g/h、開始剤として1wt%のノルマルブチルリチウム溶液を36.0g/hの速度で注入した。この時、第1反応器の温度は55℃となるように維持し、滞留時間は10分となるようにした。第1反応器から第2反応器への重合物の移送はギヤポンプを用いており、第2反応器での温度は58℃、滞留時間は10分となるようにした。第2反応器から第3反応器への重合物の移送はギヤポンプを用いており、この時、60wt%の1,3−ブタジエン溶液を45.3g/hの速度で追加注入した。第3反応器の温度は70℃となるように維持し、滞留時間は40分となるようにした。第3反応器から第4反応器への重合物の移送はギヤポンプを用いており、この時、変性剤としてN,N’−ビス(3−トリオキサアザシラビシクロウンデシルプロピル)ピペラジンをノルマルヘキサンで3wt%に希釈した溶液を25.0g/hの速度で注入した。第4反応器の温度は65℃となるように維持し、滞留時間は30分となるようにした。第4反応器から出る重合溶液に、重合中止剤のウィングステーの20wt%ノルマルヘキサン溶液を18.8g/hの速度で注入して重合反応を停止させた。前記重合物をスチームで加熱された温水に入れて撹拌して溶媒を除去した後、ロール乾燥して、残量の溶媒と水を除去して、変性共役ジエン系重合体(A)を製造した。
変性剤として、N,N’−ビス(3−トリオキサアザシラビシクロウンデシルプロピル)ピペラジン3wt%ノルマルヘキサン溶液を38.8g/hの速度で注入したことを除いては、実施例1と同様の方法により、変性共役ジエン系重合体(B)を製造した。
変性剤として、N(3−トリオキサアザシラビシクロウンデシルプロピル)N’−プロピルピペラジン3wt%ノルマルヘキサン溶液を15.0g/hの速度で注入したことを除いては、実施例1と同様の方法により、変性共役ジエン系重合体(C)を製造した。
変性剤として、N(3−トリオキサアザシラビシクロウンデシルプロピル)N’−プロピルピペラジン3wt%ノルマルヘキサン溶液を30.0g/hの速度で注入したことを除いては、実施例1と同様の方法により、変性共役ジエン系重合体(D)を製造した。
変性剤の代わりに、テトラクロロシランをノルマルヘキサンで0.5wt%に希釈して25.5g/hの速度で注入したことを除いては、実施例1と同様の方法により、未変性共役ジエン系重合体(E)を製造した。
それぞれ8L、8L、16Lの3つのオートクレーブ反応器が直列に連結された連続反応器を用いて、第1反応器に、それぞれ、60wt%のスチレン溶液344g/h、60wt%の1,3−ブタジエン溶液860g/h、ノルマルヘキサン3550g/h、極性添加剤として3wt%のエチルテトラヒドロフルフリル)エーテル溶液を31.5g/h、開始剤として1wt%のノルマルブチルリチウム溶液を29.3g/hの速度で注入した。この時、第1反応器の温度は55℃となるように維持し、滞留時間は10分となるようにした。第1反応器から第2反応器への重合物の移送はギヤポンプを用いており、第2反応器での温度は58℃、滞留時間は10分となるようにした。第2反応器から第3反応器への重合物の移送はギヤポンプを用いており、この時、60wt%の1,3−ブタジエン溶液を45.3g/hの速度で追加注入した。第2反応器の温度は70℃となるように維持し、滞留時間は40分となるようにした。第3反応器から出る重合溶液に、重合中止剤のウィングステー溶液を注入して重合反応を停止させた。前記重合物をスチームで加熱された温水に入れて撹拌して溶媒を除去した後、ロール乾燥して、残量の溶媒と水を除去して、変性共役ジエン系重合体(F)を製造した。
前記表1に示した試料A〜Fを原料ゴムとして、それぞれ下記表2に示した配合条件で配合して、共役ジエン系重合体ゴム組成物を製造した。
ASTM412の引張試験法によって、試験片の切断時の引張強度および300%伸張時の引張応力(300%モジュラス)を測定した。
ゴムの転がり抵抗性(RR)と制動性(wet grip)は、DMTS(Dynamic mechanical thermal spectrometry;GABO、EPLEXOR500N)を用いて測定した。測定時の試験条件は、Frequency:10Hz、Strain(Static strain:3%、Dynamic strain:0.25%)、Temperature:−60〜70℃とした。この時、転がり抵抗性は、60℃で測定されたTanδ値が低いほど良く、制動性は、0℃で測定されたTanδ値が高いほど良い。この値を、製造例5の値を100基準としてindex比較し、index値が大きくなるほど優秀さを示す。
Claims (14)
- a)有機アルカリ金属化合物の存在下、炭化水素溶媒中で共役ジエン系単量体、または共役ジエン系単量体と芳香族ビニル系単量体とを重合させて、アルカリ金属末端を有する活性重合体を形成するステップと、
b)前記アルカリ金属末端を有する活性重合体を、下記化学式1で表される化合物とカップリングまたは結合させて、下記化学式2で表される変性共役ジエン系重合体を製造するステップとを含む変性共役ジエン系重合体の製造方法:
または炭素数1〜50のアルキル基であり、nは1〜20であり、mは0〜20であり;
または炭素数1〜50のアルキル基であり、PnおよびPmは共役ジエン系単量体と共役芳香族単量体を主成分とする数平均分子量1,000〜10,000,000g/molの高分子であって、アクリル系、アミン系、エーテル系、またはチオエーテル系単量体を含んでもよく、PnとPmは互いに同一または異なっていてもよく、aは1〜3であり、bは0〜3であり、nは1〜20であり、mは0〜20である。 - 前記有機アルカリ金属化合物は、前記単量体計100gに対して、0.01〜10mmol使用されることを特徴とする請求項3に記載の変性共役ジエン系重合体の製造方法。
- 前記有機アルカリ金属化合物と、前記化学式1で表される化合物とのモル比は、1:0.1〜1:10であることを特徴とする請求項3に記載の変性共役ジエン系重合体の製造方法。
- 前記ステップa)の重合は、極性添加剤がさらに投入されることを特徴とする請求項3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、前記化学式1で表される化合物計1mmolを基準として、0.001〜50g投入されることを特徴とする請求項8に記載の変性共役ジエン系重合体の製造方法。
- 請求項1に記載の変性共役ジエン系重合体10〜100重量部、および前記変性共役ジエン系重合体100重量部に対して、無機充填剤0.1〜200重量部を含む変性共役ジエン系重合体ゴム組成物。
- 前記無機充填剤は、カーボンブラックおよびシリカ系充填剤のうちの1種以上であることを特徴とする請求項12に記載の変性共役ジエン系重合体ゴム組成物。
- 請求項12に記載の変性共役ジエン系重合体ゴム組成物を含むタイヤまたはタイヤトレッド。
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