PROBLEM TO BE SOLVED: To provide a modifier capable of greatly improving a low loss property and abrasion resistance of a rubber composition for tire.SOLUTION: Provided is a modifier, which is reacted with a conjugated diene-based polymer having an active site in a molecule at the active site, comprising a silicon compound represented by the following formula (1) having a group containing fluorine and an alkoxy group bound to a silicon atom. Also provided is a modified conjugated diene-based polymer formed by reacting the aforementioned modifier with a conjugated diene-based polymer having an active site in a molecule at the active site. (m+n=3 (where, m is 1, 2, or 3, and n is 0, 1, or 2); A is a univalent group containing fluorine; Ris a substituted or unsubstituted bivalent hydrocarbon group; Ris a univalent hydrocarbon group and, when m is 2 or 3, R's may be the same or different; and Ris H or a univalent hydrocarbon group and, when n is 2, R's may be the same or different.)SELECTED DRAWING: None
【課題】タイヤ用ゴム組成物の低ロス性と耐摩耗性とを大幅に向上させることが可能な変性剤の提供。【解決手段】活性部位を分子中に有する共役ジエン系重合体の該活性部位に反応させる変性剤であって、フッ素を含有する基と、ケイ素原子に結合したアルコキシ基とを有する下記式(I)で表されるケイ素化合物からなることを特徴とする、変性剤である。活性部位を分子中に有する共役ジエン系重合体の該活性部位に、前記に記載の変性剤を反応させてなる変性共役ジエン系重合体。(m+n=3(但し、mは1、2又は3であり、nは0、1又は2である);Aはフッ素を含有する一価の基;R1は置換又は非置換の2価の炭化水素基;R2は、一価の炭化水素基;mが水素又は一価の炭化水素基;nか2の場合には同一でも異なっていてもよい。)【選択図】なし
MODIFIER, MODIFIED CONJUGATED DIENE-BASED POLYMER, RUBBER COMPOSITION, AND TIRE
変性剤、変性共役ジエン系重合体、ゴム組成物、及びタイヤ
2016-03-10
Patent
Electronic Resource
Japanese
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