1：Experimental Design and Method Selection:

The study involves cross-linking ENR with dodecanedioic acids (DAs) via esterification reaction, with the addition of aniline trimer (ACAT) to introduce dynamic covalent bonds for recyclability and responsiveness. The design leverages transesterification reactions for self-healing and shape memory properties.

2：Sample Selection and Data Sources:

Epoxidized natural rubber (ENR) with 25% epoxidation degree was used as the base material. Dodecanedioic acid (DA), zinc acetate (Zn(Ac)2), 1,2-dimethylimidazole (DMI), and synthesized ACAT were employed as cross-linkers and catalysts. Samples with varying DA concentrations (10, 20, 30 mol% relative to epoxy groups) were prepared.

3：List of Experimental Equipment and Materials:

Equipment includes a Haake rheomixer for mixing, a vulcameter for curing characterization, FT-IR spectrometer (Bruker TENSOR 27), NMR spectrometer (Bruker AV400), DSC and TGA analyzers (Mettler-Toledo STARe system), tensile testing machine (Instron 5567), DMA device (TA-Q800), SEM (S-4800), and a near-infrared laser (808 nm wavelength). Materials include ENR, DA, Zn(Ac)2, DMI, aniline, p-phenylenediamine, ammonium persulfate, and solvents like DMSO.

4：Experimental Procedures and Operational Workflow:

Samples were mixed in a rheomixer, compressed at 180°C for curing. Characterization involved FT-IR, NMR, DSC, TGA, stress-relaxation tests, DMA, shape memory cycles, self-healing tests under heat or NIR irradiation, and recyclability tests via compression molding at 200°C.

5：Data Analysis Methods:

Data were analyzed using FT-IR for chemical changes, Arrhenius equation for activation energy from stress-relaxation, DMA for thermal transitions, and tensile tests for mechanical properties. Self-healing and recyclability efficiencies were calculated based on tensile energy ratios.