作者：周宏伟,梁思湘,郑朝晖,丁小斌,彭宇行
关键字：自震荡，只能高分子，Belousov-Zhabotinsky反应
论文来源：期刊
具体来源：Progress in Chemistry
发表时间：2011年
Self-oscillating polymer is a new kind of smart polymers,Its chemical and physical properties exhibit autonomous,reversible and periodic changes in a relatively closed system without any external "on-off" stimuli.Belousov-Zhabotinsky reaction (BZ reaction),which is similar to the tricarboxylic acid cycle in biological systems,is coupled with self-oscillating polymer prepared via copolymerization of N-isopropylacrylamide and double bond modified Ru(bpy)3(catalyst of BZ reaction).In the presence of BZ reaction solution, the polymer undergoes spontaneous cyclic solubel-insoluble or swelling-deswelling(in the case of gel）changes induced by the redox oscillation of Ru(bpy)3.Based on the unique self-oscillating preperties,slef-oscillating polymers may have potential applications in the fields of automatic actuators,impulsators,micro-machines and controlled drug-release.Meanwhile,it may be a appropriate choose for simulation of autonomous phenomena and sudy of mechanisms of nonequilibrium phenomena in biosystem.In this paper,recent progress in self-oscillating polymer is systematically reviewed, including the conception,mechanisms,design methods and potential applications, focusing on the design of self-oscillating polymers and gels with different chemical or physical structures.Self-oscillating polymers with basic structure of poly(Ru(bpy)3-co-NIPAAm) and others containing different modifying groups,such as AMPS,MAPTAC,VP,NAS,and AA are summarized.Sekf-oscillating gels with phase-separation structure and microgel with ordered structure are also introduced. Performances of self-oscillating polymers and gels with different chemical or physical structures are discussed and listed. Finally,preliminary work on design of self-driven autonomous transportation surface,self-walking motion and autonomous rotational motion actuator based on self-oscillating gels are introduced. The problems of self-oscillating polymer researches and trend in the future are analyzed.