METHOD FOR PRODUCING POLYMERIC COMPOSITIONS INCLUDING FUNCTIONALIZED POLYMERS

To provide a method for producing a functionalized conjugate diene polymer which does not cause viscosity change even with time.SOLUTION: This invention relates to a method for producing a functionalized polymer, the method comprising the steps of: i) polymerizing conjugated diene monomer within a s...

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Bibliographische Detailangaben
Hauptverfasser: TERRENCE E HOGAN, MARK N DEDECKER, JESSICA C KURASCH, GABRIELLE L NUZZI, KAREN MAGLIONE, CHRISTINE RADEMACHER
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a method for producing a functionalized conjugate diene polymer which does not cause viscosity change even with time.SOLUTION: This invention relates to a method for producing a functionalized polymer, the method comprising the steps of: i) polymerizing conjugated diene monomer within a solvent to produce a polymer having a reactive terminus; ii) coupling a portion of the polymer having a reactive terminus with a hydrocarbyloxysiloxane to produce a polymerization mixture including a polymer coupled with the hydrocarbyloxysiloxane and residual polymer having a reactive terminuses; iii) reacting the residual polymer having a reactive terminus with a functionalizing agent having at least one hydrocarbyloxy functional group to produce a polymerization mixture including a functionalized polymer and the polymer coupled with the hydrocarbyloxysiloxane; and iv) desolventizing the polymerization mixture.SELECTED DRAWING: None 【課題】時間が経過しても粘度変化を起こさない、官能化共役ジエンポリマーの製造方法の提供。【解決手段】i)共役ジエンモノマーを溶媒内で重合して反応性末端を有するポリマーを製造するステップと、ii)前記反応性末端を有するポリマーの一部分をヒドロカルビルオキシシロキサンで連結してヒドロカルビルオキシシロキサンで連結されたポリマー及び反応性末端を有する残存ポリマーを含む重合体混合物を製造するステップと、iii)前記反応性末端を有する残存ポリマーを少なくとも1つのヒドロカルビルオキシ官能基を有する官能化剤と反応させて、官能化ポリマー及び前記ヒドロカルビルオキシシロキサンで連結されたポリマーを含む重合体混合物を製造するステップと、iv)当該重合体混合物を脱溶媒するステップとを含む方法。【選択図】なし