Coupling kinetics of reactively ionic gels

Abstract eng:
As typical smart soft materials, ionic gels can present a large deformation induced by environmental temperature, electric field and chemicals, which maintain great potentials in soft actuator, environmental sensor, drug delivery, etc. In this paper, the coupling mechanism of reaction kinetics, deformation of polymer network, mass diffusion and polyelectrolyte effect in the gels will be uncovered, and a general dynamic electro-chemo-mechanical model will be proposed for common ionic gels. Further investigations showed that the dynamic deformation and response time of an ionic gel are dependent on the concentration of reactive and non-reactive ions, the time of exposure to external stimuli, the initial state and the density of ionizable groups on the polymer chains. At the end, a brief introduction will be additionally given on the application of smart soft materials, especially for the space technology.

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