High strength nanocomposite hydrogels with outstanding UV-shielding property

Bo Xu; Huanjun Li; Yuyang Wang; Gongzheng Zhang; Qingshan Zhang

doi:10.1002/pc.23238

High strength nanocomposite hydrogels with outstanding UV-shielding property

Bo Xu, Huanjun Li^*, Yuyang Wang, Gongzheng Zhang, Qingshan Zhang

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

A novel series of nanocomposite hydrogels (TAD gels) with high mechanical strength and excellent UV-shielding property were prepared by in situ free-radical copolymerization of acrylamide (AM) and N,N-dimethylacrylamide (DMAA) in aqueous solutions of TiO₂ nanoparticles (TiO₂ NPs). It was found that the TiO₂ NPs were uniformly dispersed in the copolymer matrix and acted as inorganic crosslinking agents in TAD gels owing to their hydrogen bonding interactions with polymer chains. The TAD gels exhibited excellent mechanical properties such as large elongations at break, high elastic moduli, and ultimate stresses, all of these properties as well as swelling ratios of TAD gels could be easily controlled by changing the AM ratios and TiO₂ contents in the initial solutions. In addition, the TAD gels with low AM ratios could be prepared into thin films in a customized Teflon model and these films showed high transparency in visible light but could completely block the UV light with wavelength below 366 nm and prevent the methylene blue from degradation under UV irradiation.

Original language	English
Pages (from-to)	810-817
Number of pages	8
Journal	Polymer Composites
Volume	37
Issue number	3
DOIs	https://doi.org/10.1002/pc.23238
Publication status	Published - 1 Mar 2016

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abstract = "A novel series of nanocomposite hydrogels (TAD gels) with high mechanical strength and excellent UV-shielding property were prepared by in situ free-radical copolymerization of acrylamide (AM) and N,N-dimethylacrylamide (DMAA) in aqueous solutions of TiO2 nanoparticles (TiO2 NPs). It was found that the TiO2 NPs were uniformly dispersed in the copolymer matrix and acted as inorganic crosslinking agents in TAD gels owing to their hydrogen bonding interactions with polymer chains. The TAD gels exhibited excellent mechanical properties such as large elongations at break, high elastic moduli, and ultimate stresses, all of these properties as well as swelling ratios of TAD gels could be easily controlled by changing the AM ratios and TiO2 contents in the initial solutions. In addition, the TAD gels with low AM ratios could be prepared into thin films in a customized Teflon model and these films showed high transparency in visible light but could completely block the UV light with wavelength below 366 nm and prevent the methylene blue from degradation under UV irradiation.",

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AU - Li, Huanjun

AU - Wang, Yuyang

AU - Zhang, Gongzheng

AU - Zhang, Qingshan

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N2 - A novel series of nanocomposite hydrogels (TAD gels) with high mechanical strength and excellent UV-shielding property were prepared by in situ free-radical copolymerization of acrylamide (AM) and N,N-dimethylacrylamide (DMAA) in aqueous solutions of TiO2 nanoparticles (TiO2 NPs). It was found that the TiO2 NPs were uniformly dispersed in the copolymer matrix and acted as inorganic crosslinking agents in TAD gels owing to their hydrogen bonding interactions with polymer chains. The TAD gels exhibited excellent mechanical properties such as large elongations at break, high elastic moduli, and ultimate stresses, all of these properties as well as swelling ratios of TAD gels could be easily controlled by changing the AM ratios and TiO2 contents in the initial solutions. In addition, the TAD gels with low AM ratios could be prepared into thin films in a customized Teflon model and these films showed high transparency in visible light but could completely block the UV light with wavelength below 366 nm and prevent the methylene blue from degradation under UV irradiation.

AB - A novel series of nanocomposite hydrogels (TAD gels) with high mechanical strength and excellent UV-shielding property were prepared by in situ free-radical copolymerization of acrylamide (AM) and N,N-dimethylacrylamide (DMAA) in aqueous solutions of TiO2 nanoparticles (TiO2 NPs). It was found that the TiO2 NPs were uniformly dispersed in the copolymer matrix and acted as inorganic crosslinking agents in TAD gels owing to their hydrogen bonding interactions with polymer chains. The TAD gels exhibited excellent mechanical properties such as large elongations at break, high elastic moduli, and ultimate stresses, all of these properties as well as swelling ratios of TAD gels could be easily controlled by changing the AM ratios and TiO2 contents in the initial solutions. In addition, the TAD gels with low AM ratios could be prepared into thin films in a customized Teflon model and these films showed high transparency in visible light but could completely block the UV light with wavelength below 366 nm and prevent the methylene blue from degradation under UV irradiation.

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High strength nanocomposite hydrogels with outstanding UV-shielding property

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