Functionalization of polyethylene toward high-performance polymers with good thermal and mechanical properties is a persistent challenge. Closo-carboranes, with a polyhedral nanocage structure, provide polyethylene with excellent thermal and chemical stability. In this work, main-chain carborane-embedded polyethylene is prepared by the ring-opening metathesis copolymerization of a cyclic o-carborane olefin with cyclooctene, followed by backbone hydrogenation. The main-chain carborane-embedded polyethylene mimics could offer superior thermal and mechanical properties to high-density polyethylene (HDPE) by adjusting the incorporation ratio while still maintaining moderate crystalline properties.

中文翻译：

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主链碳硼烷嵌入聚乙烯

将聚乙烯功能化为具有良好热性能和机械性能的高性能聚合物是一个持续的挑战。具有多面体纳米笼结构的闭合碳硼烷使聚乙烯具有优异的热稳定性和化学稳定性。在这项工作中，主链碳硼烷嵌入的聚乙烯是通过环状邻碳硼烷烯烃与环辛烯的开环复分解共聚，然后主链氢化制备的。通过调整掺入比例，主链碳硼烷嵌入的聚乙烯模拟物可以提供优于高密度聚乙烯（HDPE）的热性能和机械性能，同时仍保持适度的结晶性能。