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Studies on the synthesis of the stereo- triblock polybutadiene
Author(s): 
Pages: 24-29
Year: Issue:  6
Journal: CHINA SYNTHETIC RESIN AND PLASTICS

Keyword:  丁二烯苯乙烯双锂引发剂嵌段共聚物动力学;
Abstract: 以双卤代烷烃取代型双锂齐聚物为引发剂、环已烷为溶剂,丁二烯单体一次加入,在聚合反应过程中加入极性添加剂,合成了1,2-1,4-1,2-立构三嵌段聚丁二烯,并对双锂体系丁二烯聚合反应动力学及聚合物结构性能进行了研究.随着1,2-%的增加,聚丁二烯的无规结构含量逐渐减少,全同和间同结构含量逐渐增加,聚丁二烯的全同含量总是高于间同含量;与丁二烯均聚物相比,在1,2-%相近时,立构嵌段聚丁二烯具有更高的有规结构含量,全同和间同结构含量更高.
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