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发明公开
CN106832402A 一种热塑性弹性体及其制备方法 有权

一种热塑性弹性体及其制备方法
摘要：
本发明涉及热塑性弹性体领域，提供了一种热塑性弹性体及其制备方法。所述热塑性弹性体的制备方法包括在有机锂引发剂的存在下，将苯乙烯在有机溶剂中进行第一聚合反应，然后加入丁二烯进行第二聚合反应，所述第二聚合反应完成之后进行偶联反应和终止反应，接着加入防老剂，其中，所述防老剂含有式(1)所示的化合物和式(2)所示的化合物，且所述式(1)所示的化合物与式(2)所示的化合物的摩尔比为(0.02-2):1；式(1)中，R1-R6各自独立地为C1-C6的烷基，n为1-10的整数；式(2)中，R1-R3各自独立地为C1-C6的烷基，R4-R7各自独立地为C10-C15的烷氧基。采用本发明提供的方法制备得到的热塑性弹性体具有优异的抗热氧老化性能。式(1)式(2)。
摘要（英）：

The invention relates to the field of thermoplastic elastomers, and provides a thermoplastic elastomer and a preparation method thereof. The preparation method of the thermoplastic elastomer comprises the following steps: performing first polymerization reaction on styrene in an organic solvent under the existence of an organic lithium initiator, adding butadiene, performing second polymerization reaction, performing coupling reaction and termination reaction after the second polymerization reaction is finished, and adding an anti-ageing agent, wherein the anti-ageing agent contains a compound as shown in a formula (I) and a compound as shown in a formula (II); the molar ratio of the compound as shown in the formula (I) to the compound as shown in the formula (II) is (0.02-2):1; in the formula (I), R1 to R6 independently are alkyl of C1 to C6 and n is an integer of 1 to 10; in the formula (II), R1 to R3 independently are alkyl of C1 to C6 and R4 to R7 independently are alkyl of C10 to C15. The thermoplastic elastomer prepared by the method provided by the invention is excellent in thermo-oxidative ageing resistance. (The formula (I) and the formula (II) are as shown in the description).

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