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A Novel Surface Modification Method upon Halloysite Nanotubes: A Desirable Cross-Linking Agent to Construct Hydrogels
作者:Yuangong Zhang, Libin Bai,* Cong Cheng, Qian Zhou, Zhou Zhang, Yonggang Wu and Hailei Zhang*
关键字:Halloysite nanotubes; Clay; Click reaction (-CNO/-OH); Hydrogels; Phosphorus adsorption
论文来源:期刊
发表时间:2019年

Halloysite nanotubes (Hal), a kind of attractive natural one-dimensional

nanomaterials, possess hollow tubular nanostructures, high aspect ratio and

difference structures between external and internal surfaces. Hal show

promising applications in various fields. A novel modification method was

facilely achieved in this study via the click reaction between -CNO and -OH

groups to functionalize vinyl groups onto the nanotubes, in which the product

was carefully characterized by solid-state nuclear magnetic resonance (SSNMR),

fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and

X-ray photoelectron spectroscopy (XPS). Then the modified Hal were used as cross-linking agent in the free radical copolymerization together with acrylamide

(AM) to afford a uniform chemical hydrogel. The obtained hydrogel Hal-IM-AM showed good

rheological property, low cytotoxicity and a much better absorption ability

upon phosphorus than original Hal.