The intrinsic conflicts between mechanical performances and processability are main challenges to develop cost-effective impact-resistant materials from polymers and their composites. Herein, polyhedral oligomeric silsesquioxanes (POSSs) are integrated as side chains to the polymer backbones. The one-dimension (1D) rigid topology imposes strong space confinements to realize synergistic interactions among POSS units, reinforcing the correlations among polymer chains. The afforded composites demonstrate unprecedented mechanical properties with ultra-stretchability, high rate-dependent strength, superior impact-resistant capacity as well as feasible processability/recoverability. The hierarchical structures of the hybrid polymers enable the co-existence of multiple dynamic relaxations that are responsible for fast energy dissipation and high mechanical strengths. The effective synergistic correlation strategy paves a new pathway for the design of advanced cluster-based materials.

中文翻译：

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聚合物拓扑增强了纳米级分子簇之间的协同相互作用，具有易于加工和可恢复的抗冲击性

机械性能和可加工性之间的内在冲突是从聚合物及其复合材料开发具有成本效益的抗冲击材料的主要挑战。在此，多面体低聚倍半硅氧烷 (POSS) 作为侧链集成到聚合物主链上。一维 (1D) 刚性拓扑结构强加空间限制以实现 POSS 单元之间的协同相互作用，加强聚合物链之间的相关性。所提供的复合材料表现出前所未有的机械性能，具有超拉伸性、高速率依赖强度、卓越的抗冲击能力以及可行的可加工性/可恢复性。杂化聚合物的分层结构使多种动态弛豫共存，这些动态弛豫负责快速能量耗散和高机械强度。有效的协同相关策略为先进的基于簇的材料的设计铺平了新的途径。