Herein, we aim to develop a facile method for the fabrication of mechanical metamaterials from templated polymerization of thermosets including phenolic and epoxy resins using self-assembled block copolymer, polystyrene–polydimethylsiloxane with tripod network (gyroid), and tetrapod network (diamond) structures, as templates. Nanoindentation studies on the nanonetwork thermosets fabricated reveal enhanced energy dissipation from intrinsic brittle thermosets due to the deliberate structuring; the calculated energy dissipation for gyroid phenolic resins is 0.23 nJ whereas the one with diamond structure gives a value of 0.33 nJ. Consistently, the gyroid-structured epoxy gives a high energy dissipation value of 0.57 nJ, and the one with diamond structure could reach 0.78 nJ. These enhanced properties are attributed to the isotropic periodicity of the nanonetwork texture with plastic deformation, and the higher number of struts in the tetrapod diamond network in contrast to tripod gyroid, as confirmed by the finite element analysis.

中文翻译：

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模板化聚合的纳米网络热固性塑料，可增强能量耗散

在此，我们旨在开发一种简便的方法，通过自组装嵌段共聚物，具有三脚架网络（陀螺仪）和四脚架网络（菱形）结构的热固性材料（包括酚醛和环氧树脂）的模板聚合，包括酚醛和环氧树脂的模板聚合来制造机械超材料，作为模板。对纳米网络热固性材料进行的纳米压痕研究表明，由于故意的结构化，固有的脆性热固性材料的能量耗散增强。所计算的回旋酚醛树脂的能量耗散为0.23 nJ，而具有菱形结构的能量耗散值为0.33 nJ。一致的是，回旋结构的环氧树脂具有0.57 nJ的高能量耗散值，而具有菱形结构的环氧树脂可以达到0.78 nJ。