fig3

Figure 3. Schematic illustration of polymer elastification. (A) Polymer backbone and side chain design strategies (Reproduced with permission^[44]. Copyright 2023, American Chemical Society); (B) Construction of slide-ring polymers based on pillar[5]arene/alkyl chain interactions; (C) Improvement of elongation at break via slide-ring structure; (D) Enhancement of tensile strength through slide-ring architecture; (E) Schematic representation of tensile network structures in poly(vinyl alcohol) (PVA) nanofiber net and PVA-reinforced nanofiber net (The figures B, C, D, and E are reproduced with permission^[45]. Copyright 2024, Wiley-VCH GmbH). PEA-SR-net: A novel class of slide-ring polymers networks, comprising covalent poly(ethyl acrylate) (PEA) cross-linked with polyrotaxanes formed by pillar[5]arene macrocycles as the rings and lipophilic poly(caprolactone) (PCL) as the axle.