Belousov-Zhabotinsky反应驱动的智能高分子材料:拓扑结构及仿生功能

Smart Polymer Materials Driven by the Belousov-Zhabotinsky Reaction:Topological Structures and Biomimetic Functions

化学自振荡反应驱动的智能高分子材料常被称为自振荡高分子材料(self-oscillating polymer materials,SOPMs),其中以Belousov-Zhabotinsky(BZ)反应驱动的SOPMs研究最为深入,为高分子材料领域的一大研究热点。与传统智能高分子材料不同,SOPMs体系具有高度的自调节性,即可以不需要外界"开-关"转换的刺激就能自动、可逆、周期性地发生状态转变。本文结合SOPMs的最新研究结果,介绍该类材料在新型拓扑结构设计和仿生功能研究两个方面的新思想和新方法。在拓扑结构设计方面,主要介绍梳形自振荡高分子凝胶、"聚轮烷"互锁自振荡高分子凝胶、多级结构自振荡高分子凝胶、超级交联自振荡高分子凝胶、支化自振荡高分子、自振荡高分子刷以及嵌段自振荡高分子材料。在仿生功能研究方面,主要阐述自振荡高分子囊泡、人工细胞、自主肠状运动、趋光避光运动。最后,对SOPMs今后的发展作了展望。

Smart polymer materials driven by chemical oscillating reactions are often called self-oscillating polymer materials（SOPMs）.Among these,SOPMs driven by the Belousov-Zhabotinsky（BZ） reaction are paid particular attention and have become one of the hot topics in the field of polymer materials.Different from the traditional smart polymers,SOPMs show highly self-regulated properties,namely autonomous,reversible and periodical state transition without any ＂ON-OFF＂ switching of external stimuli.In this review,we will introduce the new ideas and new methods regarding SOPMs.Two aspects of SOPMs,including topological structures and biomimetic functions,are particularly introduced.Topological structure design involves comb-like self-oscillating polymer gels, ＂polyrotaxane-interlocked＂ self-oscillating polymer gels,hierarchical self-oscillating polymer gels,hyper cross-linked self-oscillating polymer gels,branched self-oscillating polymers,self-oscillating polymer brushes and self-oscillating block copolymers.Biomimetic function investigation includes self-oscillating polymer vesicles,artificial cells,autonomous intestine-like motion,photophobic and phototropic motion.Finally,the future development of SOPMs is prospected.