Method for producing modified conjugate diene polymer, modified conjugate diene polymer, modified conjugate diene polymer composition, rubber and pneumatic composition
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机译:改性共轭二烯聚合物的生产方法,改性共轭二烯聚合物,改性共轭二烯聚合物组合物,橡胶和气动组合物
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摘要
A method for producing a modified conjugated diene polymer comprising a polymerization step of obtaining a conjugated diene polymer containing a nitrogen atom in a polymer chain and an active end by copolymerizing a conjugated diene compound and a nitrogen atom-containing vinyl compound, or a conjugated diene compound, an aromatic vinyl compound and a nitrogen atom-containing vinyl compound by use of an alkali metal compound and/or an alkaline earth metal compound as a polymerization initiator, and a modification step of reacting a modifier, which is a compound represented by the following formula (1), with the active end of the conjugated diene polymer: where R 1 to R 4 each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 20 carbon atoms; R 5 represents an alkylene group having 3 to 10 carbon atoms; R 6 represents an alkylene group having 1 to 20 carbon atoms; m is an integer of 1 or 2; and n is an integer of 2 or 3.
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机译:一种制备改性共轭二烯聚合物的方法,包括通过使共轭二烯化合物和含氮原子的乙烯基化合物或共轭二烯化合物,芳香族乙烯基化合物和氮原子共聚,得到在聚合物链上具有氮原子并具有活性端的共轭二烯聚合物的聚合步骤。碱金属化合物和/或碱土金属化合物作为聚合引发剂的含乙烯基化合物,以及一种改性步骤,其是使由下式(1)表示的化合物的改性剂与共轭二烯聚合物的活性端反应:其中R 1至R 4各自独立地表示具有1至20个碳原子的烷基或具有6至20个碳原子的芳基; R 5表示碳原子数为3〜10的亚烷基。 R 6表示碳数1〜20的亚烷基。 m是1或2的整数; n是2或3的整数。
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