Autonomous oscillating microgels involving Fe(phen)(3) catalyst synchronized with the Belousov-Zhabotinsky reaction

作者：Ren, Jie^*; Zhang, Aixia; Gu, Jinfen; Tao, Li; He, Jihong; Yang, Wu

来源：Soft Materials, 2018, 16(2): 134-140.

DOI：10.1080/1539445X.2018.1440593

• BZ oscillating chemical reaction
• microgels
• swelling
• deswelling self-oscillation

A novel kind of microgels' poly(NIPAAm-co-Fe(phen)(3)-co-CS) were prepared by copolymerization of N-isopropylacrylamide (NIPAAm), chitosan (CS), and iron(II) 5-acrylamide-1,10-phenanthroline-bis(1,10-phenanthroline) (denoted as Fe(phen)(3)), the catalyst for the Belousov-Zhabotinsky (BZ) reaction. The microgels were characterized by FTIR spectroscopy, scanning electron microscope, and static water contact angle. In addition, the self-oscillating behaviors of the microgels were investigated in BZ system free of catalyst. Both the redox potential and transmittance self-oscillation were observed. Moreover, the self-oscillating parameters, such as the induction period, oscillating period, duration, and amplitude decreased with the increasing of CS contents. This special property enables them to be used as biocompatible materials for a variety of applications.

• 出版日期2018
• 单位西北师范大学