Abstract:The construction of microgel-based composite hydrogels is an effective method to accelerate the response speed of hydrogels. TO improve the chemical-mechanical oscillation (C-M) delay in the self-oscillating gel system, this paper innovatively constructs a microgel composite self-oscillating hydrogel using the microgel bearing double bonds on the surface as crosslinkers. First, microgel bearing unsaturated double bonds with good dispersity is fabricated via the emulsion polymerization method. Then microgel composite self-oscillating hydrogels were prepared by using microgels as crosslinkers. The effect of microgels as crosslinkers for self-oscillating hydrogels on the C-M delay was explored. The results show that the mesh structure of the microgel composite self-oscillating hydrogel is loose and spherical, which is beneficial to increase its diffusion coefficient; through microscope monitoring, under multiple crosslinking densities, no C-M delay is found, and the oscillation behavior (period, amplitude) can remain stable.