JP2018510922A - 変性共役ジエン系重合体、この製造方法及びこれを含むゴム組成物 - Google Patents
変性共役ジエン系重合体、この製造方法及びこれを含むゴム組成物 Download PDFInfo
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- JP2018510922A JP2018510922A JP2017538314A JP2017538314A JP2018510922A JP 2018510922 A JP2018510922 A JP 2018510922A JP 2017538314 A JP2017538314 A JP 2017538314A JP 2017538314 A JP2017538314 A JP 2017538314A JP 2018510922 A JP2018510922 A JP 2018510922A
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- conjugated diene
- modified conjugated
- diene polymer
- carbon atoms
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- 239000000945 filler Substances 0.000 claims abstract description 25
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 23
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- BESRBWLUVPELTD-UHFFFAOYSA-K cyclohexyltin(3+);trichloride Chemical compound Cl[Sn](Cl)(Cl)C1CCCCC1 BESRBWLUVPELTD-UHFFFAOYSA-K 0.000 claims description 2
- GNMVEKSYLLXJKX-UHFFFAOYSA-L dibromo(dioctyl)stannane Chemical compound CCCCCCCC[Sn](Br)(Br)CCCCCCCC GNMVEKSYLLXJKX-UHFFFAOYSA-L 0.000 claims description 2
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- 229910052740 iodine Inorganic materials 0.000 claims description 2
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- XBEREOHJDYAKDA-UHFFFAOYSA-N lithium;propane Chemical compound [Li+].CC[CH2-] XBEREOHJDYAKDA-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
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- 239000000470 constituent Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- FCMDDPPQBVFMTQ-UHFFFAOYSA-N dicyclohexyloxymethanamine Chemical compound C1CCCCC1OC(N)OC1CCCCC1 FCMDDPPQBVFMTQ-UHFFFAOYSA-N 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- SMBQBQBNOXIFSF-UHFFFAOYSA-N dilithium Chemical compound [Li][Li] SMBQBQBNOXIFSF-UHFFFAOYSA-N 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- TXXWBTOATXBWDR-UHFFFAOYSA-N n,n,n',n'-tetramethylhexane-1,6-diamine Chemical compound CN(C)CCCCCCN(C)C TXXWBTOATXBWDR-UHFFFAOYSA-N 0.000 description 1
- VGIVLIHKENZQHQ-UHFFFAOYSA-N n,n,n',n'-tetramethylmethanediamine Chemical group CN(C)CN(C)C VGIVLIHKENZQHQ-UHFFFAOYSA-N 0.000 description 1
- DMQSHEKGGUOYJS-UHFFFAOYSA-N n,n,n',n'-tetramethylpropane-1,3-diamine Chemical compound CN(C)CCCN(C)C DMQSHEKGGUOYJS-UHFFFAOYSA-N 0.000 description 1
- XOZZATXWQMOVHL-UHFFFAOYSA-N n,n-dimethyl-1,1-di(propan-2-yloxy)methanamine Chemical compound CC(C)OC(N(C)C)OC(C)C XOZZATXWQMOVHL-UHFFFAOYSA-N 0.000 description 1
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical compound CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- 239000012454 non-polar solvent Substances 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
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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Abstract
Description
本出願は、2015年10月8日付韓国特許出願第10-2015-0141830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。
本発明は、充填剤との親和性に優れた変性共役ジエン系重合体、この製造方法、これを含むゴム組成物、及び前記ゴム組成物を利用して製造されたタイヤに関する。
R、R4及びR5は、互いに独立して炭素数1から20の炭化水素基であり、
R2及びR3は、互いに独立して炭素数1から20の炭化水素基、または酸素もしくは窒素を含有した炭素数1から20の炭化水素基であり、
R2及びR3は互いに連結され、炭素数5から20の脂肪族環または炭素数6から20の芳香族環を形成し、
Pは、変性共役ジエン系重合体鎖であり、
Xは、ハロゲン基であり、
Aは、3級アミンであり、
a及びbは、互いに独立して1から4の整数であり、
a+b≦4である。
R、R4及びR5は、互いに独立して炭素数1から20の炭化水素基であり、
R1、R2及びR3は、互いに独立して炭素数1から20の炭化水素基;または酸素もしくは窒素を含有した炭素数1から20の炭化水素基であり、
R2及びR3は互いに連結され、炭素数5から20の脂肪族環または炭素数6から20の芳香族環を形成し、
Pは、変性共役ジエン系重合体鎖であり、
Xは、ハロゲン基であり、
Aは、3級アミンであり、
a、b及びmは、互いに独立して1から4の整数であり、
a+b≦4である。
R、R4及びR5は、互いに独立して炭素数1から20の炭化水素基であり、
R2及びR3は、互いに独立して炭素数1から20の炭化水素基、または酸素もしくは窒素を含有した炭素数1から20の炭化水素基であり、
R2及びR3は互いに連結され、炭素数5から20の脂肪族環または炭素数6から20の芳香族環を形成し、
Pは、変性共役ジエン系重合体鎖であり、
Xは、ハロゲン基であり、
Aは、3級アミンであり、
a及びbは、互いに独立して1から4の整数であり、
a+b≦4である。
R、R4及びR5は、互いに独立して炭素数1から20の炭化水素基であり、
R1、R2及びR3は、互いに独立して炭素数1から20の炭化水素基;酸素を含有した炭素数1から20の炭化水素基;または窒素を含有した炭素数1から20の炭化水素基であり、
R2及びR3は互いに連結され、炭素数5から20の脂肪族環または炭素数6から20の芳香族環を形成することができ、
Xは、ハロゲン基であり、
Aは、3級アミンであり、
mは、1から4の整数である。
1)多官能性陰イオン重合開始剤(t-buLi/1,3-diisopropenylbenzene adduct)の製造
撹拌機及びジャケットを備える2.5Lの反応器を予め窒素で乾燥した後、-10℃に合わせた。ここにトリエチルアミン47.5g(99.5%、0.467mol)、t-ブチルリチウム332.5g(18%、0.934mol)、シクロヘキサン466.6 gを順次投入し、撹拌して混合した。以後、1,3-ジイソプロフェニルベンゼン76.2g(97%、0.467mol)を添加して反応させた後、温度を常温に昇温し、2時間の間撹拌して多官能性陰イオン重合開始剤922.8g(14.5%)を製造した。
撹拌機及びジャケットを備えた4つの10Lの反応器を直列に連結して予め窒素で乾燥した後、予め不純物を除去したブタジエン292g/hr、スチレン108g/hr、ヘキサン2000g/hr、極性添加剤としてTMEDA(Tetramethylethylenediamine)1.04g/hrで一番目の反応器に連続的に投入した。ここに前記1)の多官能性陰イオン重合開始剤を1.07g/hrになるように反応器に投入した。このとき、反応器の内部温度は80℃に維持し、反応時間は40分に設定した。二番目の反応器もまた80℃であり、反応時間は60分であった。二番目の反応器を経由しながらブタジエン及びスチレンが99%以上消尽するが、他の比較重合物と同一条件で重合物を製造するために三番目、四番目の反応器も用いた。
前記実施例1での四塩化錫の量を重合開始剤に比べて0.17モル比で減量して投入したことを除き、実施例1と同様の方法で変性共役ジエン系重合体を製造した。
前記実施例1でのTMEDAを0.64g/hrに、陰イオン重合開始剤を0.690g/hrになるように投入し、四塩化錫及び3-(ジエトキシ(メチル)シリル)-N,N-ジエチルプロパン-1-アミンを投入していないことを除き、実施例1と同様の方法で未変性共役ジエン系重合体を製造した。ただし、四番目の反応器に出る重合体に0.5g/hrでメタノールを投入し、重合体活性を除去してから2,6-ジ-t-ブチル-p-クレゾール(BHT)を4.0g/hrで添加した。
前記実施例1でのTMEDAを0.76g/hrに、陰イオン重合開始剤を0.86g/hrになるように投入し、四塩化錫を投入していないことを除き、実施例1と同様の方法で製造し、重合体の両末端がアミノシラン系化合物由来基が結合されている変性共役ジエン系重合体を製造した。
前記比較例2で、製造される重合体の分子量の分布を比較例2より狭くして物性及び加工性に及ぶ影響を確認するため、一番目の反応器の温度を60℃及び反応時間を20分に変更し、二番目の反応器の反応時間を80分に延長し、TMEDA(Tetramethylethylenediamine)を0.38g/hrで、陰イオン重合開始剤を0.75g/hrで投入したことを除き、比較例2と同様の方法で重合体の両末端がアミノシラン系化合物由来基が結合されている変性共役ジエン系重合体を製造した。
前記実施例1及び2、比較例1から3の重合体の物性評価のために無機充填剤との配合を行い、配合処方は下記表1の通りであり、物性評価の結果は表2に示した。
Claims (27)
- 前記化学式(1)中、
R、R4及びR5は、互いに独立して炭素数1から10のアルキル基であり、
R2及びR3は、互いに独立して炭素数1から10のアルキル基;酸素を含有した炭素数1から10のアルキル基;または窒素を含有した炭素数1から10のアルキル基である請求項1に記載の変性共役ジエン系重合体。 - 前記化学式(1)中、
R、R4及びR5は、互いに独立して炭素数1から6のアルキル基であり、
R2及びR3は、互いに独立して炭素数1から6のアルキル基、または酸素を含有した炭素数1から6のアルキル基である請求項1に記載の変性共役ジエン系重合体。 - 前記化学式(1)中、
Xは、F、Cl、Br及びIの中から選択される請求項1に記載の変性共役ジエン系重合体。 - 前記重合体は、80ppmから700ppmのシリカ(Si)を含有する請求項1に記載の変性共役ジエン系重合体。
- 前記重合体は、50ppmから550ppmの錫(Sn)を含有する請求項1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、共役ジエン系単量体及び芳香族ビニル系単量体の共重合体である請求項1に記載の変性共役ジエン系重合体。
- 前記共重合体は、芳香族ビニル系単量体由来単位を40重量%以下で含む請求項1に記載の変性共役ジエン系重合体。
- 前記重合体は、重量平均分子量が250,000g/molから1,600,000g/molである請求項1に記載の変性共役ジエン系重合体。
- 前記重合体は、重量平均分子量(Mw)及び数平均分子量(Mn)の比(Mw/Mn)が1.7から3.5である請求項1に記載の変性共役ジエン系重合体。
- 1)炭化水素溶媒の中で、多官能性陰イオン重合開始剤の存在下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て両末端にアルカリ金属が結合された活性重合体を製造する工程;
2)前記重合体を下記化学式(2)で表される錫系化合物と反応させる工程;及び
3)前記反応後、下記化学式(3)で表されるアミノシラン系化合物と反応させる工程を含む、下記化学式(1)で表される請求項1に記載の変性共役ジエン系重合体の製造方法。
R、R4及びR5は、互いに独立して炭素数1から20の炭化水素基であり、
R1、R2及びR3は、互いに独立して炭素数1から20の炭化水素基;または酸素もしくは窒素を含有した炭素数1から20の炭化水素基であり、
R2及びR3は互いに連結され、炭素数5から20の脂肪族環または炭素数6から20の芳香族環を形成し、
Pは、変性共役ジエン系重合体鎖であり、
Xは、ハロゲン基であり、
Aは、3級アミンであり、
a、b及びmは、互いに独立して1から4の整数であり、
a+b≦4である。 - 前記多官能性陰イオン重合開始剤は、炭化水素溶媒の中で芳香族化合物と有機リチウム化合物を反応させて製造されたものである請求項11に記載の変性共役ジエン系重合体の製造方法。
- 前記芳香族化合物と有機リチウム化合物は、1:1から2モル比で反応させる請求項12に記載の変性共役ジエン系重合体の製造方法。
- 前記芳香族化合物は、ο-ジイソプロフェニルベンゼン、m-ジイソプロフェニルベンゼン、p-ジイソプロフェニルベンゼン、ο-ジビニルベンゼン、m-ジビニルベンゼン、p-ジビニルベンゼン、1,2,4-トリビニルベンゼン、1,2-ビニル-3,4-ジメチルベンゼン、1,3-ジビニルナフタレン、1,3,5-トリビニルナフタレン、2,4-ジビニルビフェニル、3,5,4'-トリビニルビフェニル、1,2-ジビニル-3,4-ジメチルベンゼン及び1,5,6-トリビニル-3,7-ジエチルナフタレンからなる群より選択される1種以上である請求項12に記載の変性共役ジエン系重合体の製造方法。
- 前記有機リチウム化合物は、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、フェニルリチウム、リチウムアセチルアミド及びリチウムイソプロピルアミドからなる群より選択される1種以上である請求項12に記載の変性共役ジエン系重合体の製造方法。
- 前記多官能性陰イオン重合開始剤は、単量体の合計100重量部を基準に0.10重量部から0.5重量部で用いられる請求項11に記載の変性共役ジエン系重合体の製造方法。
- 前記化学式(2)で表される錫系化合物は、メチルトリクロロ錫、ジメチルジクロロ錫、エチルトリクロロ錫、ジエチルジクロロ錫、ブチルトリクロロ錫、ジブチルジクロロ錫、オクチルトリクロロ錫、ジオクチルジクロロ錫、メチルトリブロモ錫、ジメチルジブロモ錫、オクチルトリブロモ錫、ジオクチルジブロモ錫、テトラクロロ錫、テトラブロモ錫、テトラヨウ化錫、シクロヘキシルトリクロロ錫及びフェニルトリクロロ錫からなる群より選択される1種以上である請求項11に記載の変性共役ジエン系重合体の製造方法。
- 化学式(3)で表されるアミノシラン系化合物は、3-(ジエトキシ(メチル)シリル)-N,N-ジエチルプロパン-1-アミンまたは2-(N,N-ジメチルアミノプロピル)-2,5,5-トリメチル-1,3,2-ジオキシシランである請求項11に記載の変性共役ジエン系重合体の製造方法。
- 前記化学式(2)で表される錫系化合物は、多官能性陰イオン重合開始剤内のリチウム1mol当たりに錫系化合物内の錫が0.05molから0.25molになる割合で用いられる請求項11に記載の変性共役ジエン系重合体の製造方法。
- 前記化学式(3)で表されるアミノシラン系化合物は、多官能性陰イオン重合開始剤内のリチウム1mol当たりにアミノシラン系化合物内のシリカが0.1molから1.0molになる割合で用いられる請求項11に記載の変性共役ジエン系重合体の製造方法。
- 前記工程1)の重合は、極性添加剤をさらに添加して行う請求項11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、単量体の合計100重量部に対して0.001重量部から5.0重量部で添加される請求項21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を含むゴム組成物。
- 前記ゴム組成物は、前記変性共役ジエン系重合体を20重量%から90重量%で含む請求項23に記載のゴム組成物。
- 前記ゴム組成物は、前記重合体100重量部に対し0.1重量部から200重量部の充填剤を含むものである請求項23に記載のゴム組成物。
- 前記充填剤は、シリカ系充填剤、カーボンブラック系充填剤またはこれらの組み合わせである請求項25に記載のゴム組成物。
- 請求項23に記載のゴム組成物から製造されたタイヤ。
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