fig9

Figure 9. (A) Synthesis process of PUSA and structure of PUA-N1 elastomer. (A) is reprinted with permission from Ref.^[48], Copyright © 2019 ACS; (B) Preparation process of polymer, morphology and thermal conductivity of composites. (B) is reprinted with permission from Ref.^[50], Copyright © 2018 Elsevier; (C) The molecular structure formula of the PU-TA single chain, and multiple hydrogen bonds, disulfide bonds in the PU-TA copolymers. (C) is reprinted with permission from Ref.^[54], Copyright © 2023 RSC. Licensed under CC BY-NC 3.0. PUSA: Polyurethane acrylate containing disulfide bonds; PUA: polyurethane acrylate; PU-TA: polyurethane and thioctic acid; UV: ultraviolet; HEA: 2-hydroxyethyl acrylate; PI: photoinitiator; TBD: 1,5,7-triazabicyclo[4.4.0]dec-5-ene; mBN: micron-scale boron nitride.