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High strength and anti-fatigue nanocomposite hydrogels prepared via self-initiated free radical polymerization triggered by daylight

Abstract

Nanocomposite hydrogels (NC gels) consisting of copolymer of acrylamide (AM) and 2-methoxyethyl acrylate (MEA) and titania nanoparticles (TiO2 NPs) as both inorganic cross-linking agents and photo-initiators were synthesized. Especially, the formation of hydrogels can be realized under daylight without using any initiating systems or special treatments. The resultant NC gel displayed outstanding mechanical performance including high extensibility (elongation at break >1000%), high strength (fracture stress up to 630 kPa), high toughness (~4.64 MJ m-3), and anti-fatigue properties due to the hydrogen bonding interactions between TiO2 NPs and polymer chains. Furthermore, the hydrogels also revealed considerable mechanical strength at swollen state because of their relative low swelling ratios. It is hoped that this novel type of NC gels could promote current hydrogel research and broaden their practical applications.

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Publication details

The article was received on 18 Apr 2018, accepted on 04 Jun 2018 and first published on 05 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ01869C
Citation: New J. Chem., 2018, Accepted Manuscript
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    High strength and anti-fatigue nanocomposite hydrogels prepared via self-initiated free radical polymerization triggered by daylight

    B. Xu, Y. Liu, Y. Li, L. Wang, N. Li, M. Fu, P. Wang and Q. Wang, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ01869C

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