Making Polyisoprene Self-Healable through Microstructure Regulation by Rare-Earth Catalysts,Angewandte Chemie International Edition

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Making Polyisoprene Self-Healable through Microstructure Regulation by Rare-Earth Catalysts
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2022-09-01 , DOI: 10.1002/anie.202210023
Haobing Wang ₁ , Yang Yang ₁ , Masayoshi Nishiura _{1,

2} , You-Lee Hong _{3,

4} , Yusuke Nishiyama _{4,

5} , Yuji Higaki ₆ , Zhaomin Hou _{1,

2}

Affiliation

Polyisoprenes with an appropriate mixture of 3,4- and cis-1,4-microstructures were synthesized by scandium catalyst-controlled polymerization of isoprene. The polyisoprenes exhibited excellent elasticity and self-healability without any external intervention, which is a result of microphase separation of the relatively hard 3,4-segments from a highly flexible cis-1,4-segment matrix at the nanoscale.

中文翻译：

通过稀土催化剂的微观结构调节使聚异戊二烯自愈

通过钪催化剂控制的异戊二烯聚合，合成了具有适当混合物的 3,4-和顺式-1,4-微结构的聚异戊二烯。聚异戊二烯在没有任何外部干预的情况下表现出优异的弹性和自愈性，这是相对较硬的 3,4-链段在纳米尺度上与高度柔韧的顺式-1,4-链段基质微相分离的结果。

更新日期：2022-09-01

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