Autonomous oscillating microgels involving Fe(phen)3 catalyst synchronized with the Belousov–Zhabotinsky reaction. Issue 2 (3rd April 2018)

• Record Type: Journal Article
• Authors: Ren, Jie; Zhang, Aixia; Gu, Jinfen; Tao, Li; He, Jihong; Yang, Wu
• Is Part Of: Soft materials. Volume 16:Issue 2(2018)
• Page Start: 134
• Page End: 140
• Publication Date: 2018-04-03
• Subjects: BZ oscillating chemical reaction -- microgels -- swelling/deswelling self-oscillation; Materials science -- Periodicals; 620.11
• DOI: 10.1080/1539445X.2018.1440593
• Languages: English
• ISSNs: 1539-445X

Abstract

ABSTRACT: 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.