title: Multi-responsive hydrogel based on lotus root starch.
abstract: The lotus root starch-based hydrogel was synthesized by free radical copolymerization. Fourier Transform Infrared Spectroscopy (FTIR) demonstrated that the formation of target product. X-ray diffraction (XRD) analysis showed the change of the starch's crystallization. The morphology and pore structure of the hydrogel were evaluated by Field Emission Scanning Electron Microscope (FESEM) and Biomicroscope. Thermogravimetric analysis revealed the better thermal stability of hydrogel. Furthermore, the swelling in CaCl2 and AlCl3 solutions/temperature (25°C-65°C) displayed the "overshooting effect" swelling-deswelling phenomenon with prolonging the swelling time. The hydrogel can rapidly response to various pH value as well.
authors.affiliation: Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China. Electronic address: Baodongzhu@126.com.
authors.forename: Baodong
authors.initials: B
authors.lastname: Zhu
authors.affiliation: Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China.
authors.forename: Dongzhuo
authors.initials: D
authors.lastname: Ma
authors.affiliation: Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.affiliation: Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China.
authors.forename: Jianwei
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Provincial Key Laboratory Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, China.
authors.forename: Shuang
authors.initials: S
authors.lastname: Zhang
mesh_terms: D003460:Crystallization; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry*; D000070116:Lotus / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013213:Starch / Q000737:chemistry* / Q000648:ultrastructure; D014961:X-Ray Diffraction
chemical_list: D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D013213:Starch
keywords: Hydrogel; Lotus root starch; Salt; Temperature; pH