BLOCK COPOLYMER HYDRIDE AND MANUFACTURING METHOD OF BLOCK COPOLYMER HYDRIDE

• Main Authors: KUMAZAWA KAZUKI, HARAUCHI YOSUKE, TSUJINO TOMA, SUDEJI HIRONARI
• Format: Patent
• Language: English; Japanese
• Published: 09.01.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide block copolymer hydride capable of molding a molded body high in heat resistance and high in adhesiveness to a molded body consisting of cyclic olefin ring-opening polymer hydride (COP).SOLUTION: There is provided block copolymer hydride [D] by hydrogenation of a block copolymer [C] consisting of at least 2 polymer blocks [A] mainly containing an aromatic vinyl monomer unit derived from an aromatic vinyl compound, and at least one polymer block [B] mainly containing a chain conjugated diene monomer unit derived from a chain conjugated diene compound, an elution curve measured by gel permeation chromatography (GPC) has at least 2 block copolymer hydride derived peaks (A and B in elution order), a ratio of detection sensitivity (mV) of the peak A to detection sensitivity of the peak B is 1.5 to 9.0, and standard polystyrene converted molecular weight based on elution time of the peak B is 5000 or more.SELECTED DRAWING: Figure 1 【課題】耐熱性が高いと共に環状オレフィン開環重合体水素化物（ＣＯＰ）からなる成形体に対する密着性が高い成形体を成形可能であるブロック共重合体水素化物を提供する。【解決手段】芳香族ビニル化合物に由来する芳香族ビニル単量体単位を主成分とする少なくとも２つの重合体ブロック［Ａ］と、鎖状共役ジエン化合物に由来する鎖状共役ジエン単量体単位を主成分とする少なくとも１つの重合体ブロック［Ｂ］とからなるブロック共重合体［Ｃ］を水素化したブロック共重合体水素化物［Ｄ］であって、ゲルパーミエーションクロマトグラフィー（ＧＰＣ）で測定した溶出曲線が、少なくとも２つのブロック共重合体水素化物由来ピーク（溶出順にＡ，Ｂ）を有し、ピークＢの検出感度（ｍＶ）に対するピークＡの検出感度の比が、１．５以上９．０以下であり、ピークＢの溶出時間に基づく標準ポリスチレン換算分子量が５０００以上である、ブロック共重合体水素化物。【選択図】図１