Designing multifunctional gels with electrical conductivity, mechanical toughness and self-oscillating performance

Self-oscillating polymer gels driven by the Belousov–Zhabotinsky (BZ) oscillating chemical reaction are a new class of functional gels that have potential applications in autonomously functioning membranes and as artificial muscle actuators.

Numerical Simulation of the Behaviors of the Bray-Liebhafsky Oscillating Chemical Reaction by a Four-variable Model

Based on a ten-step chemical model involving the concentrations of I₂(aq), O₂(aq), and the intermediates of I^- and HIO₂, four independent variables and seven irreversible steps, the nonlinear behavior of Bray-Liebhafsky (BL) oscillating reaction was investigated. The results showed that with different values of initial concentrations of reactants in the process of simulation, both periodic oscillation and chaotic behavior could be observed. In addition, at the same initial concentrations and rate constants, the system becomes more and more regular after being chaos. That is to say, the translation from chaos to periodic oscillation at the same initial conditions appeared in the BL system. The nonlinear behavior of system was also investigated briefly

Recent developments in self-oscillating polymeric systems as smart materials: from polymers to bulk hydrogels

As novel functional materials, we developed self-oscillating polymeric materials composed of synthetic polymers coupled with an oscillating chemical reaction, the so-called Belousov–Zhabotinsky (BZ) reaction.

Determination of europium by using the chemical oscillating system of Ce(IV)-KBrO3-acetone-oxalic acid-H2SO4

A sensitive and convenient method for the determination of trace europium ions using an oscillating chemical reaction involving Ce(IV) - KBrO3 - acetone - oxalic acid - H2SO4 was proposed. The results indicated that the changes in oscillating period (T) was linearly proportional to the negative logarithmic concentration of Eu3+ (-log C) in the range of 1.41 × 10−8 ˜ 1.41 × 10−4 mol L−1 (r = 0.9982) with a detection limit of 1.04 × 10−9 mol L−1. The recoveries were limited to the range of 99.5% to 100.8%. Under the same conditions, other rare earth ions did not interfere with the determination of Eu3+. In addition, a perturbation mechanism was also discussed briefly.