The present disclosure relates to a modified conjugated diene-based polymer having excellent affinity with a filler, a method for preparing the same, a rubber composition including the same and a tire manufactured using the rubber composition. The modified conjugated diene-based polymer according thereto has a tin-based compound-derived group bind on one end, and a silane-based compound-derived group bind on the other end, and therefore, may have excellent affinity with a carbon black-based filler as well as a silica-based filler. Accordingly, a rubber composition including the modified conjugated diene-based polymer may have excellent processability, and as a result, processed goods (for example, tires) manufactured using the rubber composition may have excellent tensile strength, wear resistance and viscoelastic property.
本公开涉及一种与填料具有极佳亲和性的改性共轭二烯基聚合物、制备方法、包括改性共轭二烯基聚合物的橡胶组合物以及使用该橡胶组合物制造的轮胎。根据本发明,改性共轭二烯基聚合物的一端结合有
锡基化合物衍生基团,另一端结合有
硅烷基化合物衍生基团,因此可与
炭黑基填料和
二氧化硅基填料具有极佳的亲和性。因此,包括改性共轭二烯基聚合物的橡胶组合物可能具有优异的可加工性,因此,使用该橡胶组合物制造的加工品(例如轮胎)可能具有优异的拉伸强度、耐磨性和粘弹性。