1：Experimental Design and Method Selection:

The study involved synthesizing core-shell structured P(St-NIPAM)/P(NIPAM-co-MAA) polymer microgels via soap-free and seeded emulsion polymerization. Polymer-TiO2 composites were formed by hydrolysis and condensation of TBOT in ethanol/acetonitrile using the polymer microgels as templates. AgNPs were loaded by in situ reduction of [Ag(NH3)2]+ with ethanol and NaOH. Catalytic activity was tested in the reduction of 4-NP by NaBH

2：Sample Selection and Data Sources:

Samples included polymer microgels, polymer-TiO2 composites, and polymer-TiO2/Ag composites with varying TBOT and [Ag(NH3)2]+ concentrations. Data were obtained from synthesis and characterization experiments.

3：List of Experimental Equipment and Materials:

Materials included NIPAM, St, MAA, APS, MBA, NaOH, TBOT, acetonitrile, AgNO3, ammonia, NaBH4, 4-NP, ethanol, and redistilled water. Equipment included TEM, FE-TEM, FT-IR spectrometer, XRD diffractometer, XPS instrument, TGA analyzer, laser particle analyzer, and UV-Vis spectrophotometer.

4：Experimental Procedures and Operational Workflow:

Synthesis steps involved dispersion, reaction, centrifugation, and drying. Catalytic tests involved mixing reactants in a cuvette, adding catalyst, and monitoring with UV-Vis spectroscopy. Characterization included morphology, composition, and thermal analysis.

5：Data Analysis Methods:

Data were analyzed using TEM for size distribution, UV-Vis for SPR and catalytic kinetics (pseudo-first-order model), FT-IR for functional groups, XPS for elemental composition, XRD for crystal structure, TGA for thermal stability, and particle size analysis for swelling behavior.