A dinuclear Pd(II) complex possessing a cyclic ligand was applied as a coordinative cross-linker of acrylonitrile–butadiene rubber (NBR). Tensile tests revealed that the mechanical properties of the coordinatively cross-linked NBRs were improved compared with those of the original NBR. The effects of the loading amount of the complexes and their reusability were also investigated. A dinuclear Pd(II) complex possessing a cyclic ligand was applied as a coordinative cross-linker of acrylonitrile–butadiene rubber (NBR). Tensile tests revealed that the mechanical properties of the coordinatively cross-linked NBRs were improved compared with those of the original NBR. Increasing the loading amount of the complex enhanced Young’s modulus, tensile strength, tensile strain, and toughness. The cross-linked NBR could be reused with a simple dissolution and drying process, which featured coordinative cross-linking.

中文翻译：

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丙烯腈-丁二烯橡胶与大环双核钯配合物的配位交联

具有环状配体的双核 Pd(II) 配合物被用作丙烯腈 - 丁二烯橡胶 (NBR) 的配位交联剂。拉伸试验表明，与原始 NBR 相比，配位交联 NBR 的机械性能有所提高。还研究了配合物负载量及其可重复使用性的影响。具有环状配体的双核 Pd(II) 配合物被用作丙烯腈 - 丁二烯橡胶 (NBR) 的配位交联剂。拉伸试验表明，与原始 NBR 相比，配位交联 NBR 的机械性能有所提高。增加配合物的加载量可提高杨氏模量、拉伸强度、拉伸应变和韧性。