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Integrated colloidal deformation to advanced polymer network design through polymer-nanoparticle alternating hybrids
Giant Pub Date : 2023-12-06 , DOI: 10.1016/j.giant.2023.100218
Dongdong Zhou , Ruikun Sun , Andrew Wijesekera , Shalin Patil , Zhanhui Gan , Ting Ge , Xue-Hui Dong , Shiwang Cheng

Current polymer network design suffers from intrinsic trade-offs, where polymer networks with high modulus often turn out to be in short of stretchability or fracture toughness. Here, we show a novel polymer network design through polymer-nanoparticle alternating hybrids that enable integrating the colloid deformation into polymer network design. The new class of polymer network exhibits colloidal yielding at small deformation before conformational change at higher elongation ratios, enabling achievement of high Young's modulus of , high yield strength of , large stretchability of , and high fracture energy density of . These results demonstrate a successful strategy to decouple the molecular mechanics for yield from that for stretchability or toughness, leading to new polymer networks design.

中文翻译:

通过聚合物-纳米粒子交替混合将胶体变形集成到先进的聚合物网络设计中

当前的聚合物网络设计存在内在的权衡,高模量的聚合物网络往往缺乏拉伸性或断裂韧性​​。在这里,我们通过聚合物-纳米粒子交替混合展示了一种新颖的聚合物网络设计,能够将胶体变形整合到聚合物网络设计中。新型聚合物网络在较高伸长率下构象变化之前表现出小变形胶体屈服,从而实现 的高杨氏模量、 的高屈服强度、 的大拉伸性和 的高断裂能密度。这些结果证明了一种成功的策略,可以将屈服的分子力学与拉伸性或韧性的分子力学分离,从而产生新的聚合物网络设计。
更新日期:2023-12-06
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