2023
DOI: 10.1021/acsmacrolett.3c00160
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Origin of Surface Charge of Double Network Hydrogels Prepared by Sequential Polymerization

Abstract: Understanding the physicochemical properties of hydrogel surfaces and their molecular origins is important for their applications. In this paper, we elucidate the molecular origin of surface charges in double-network hydrogels synthesized by two-step sequential polymerization. Synthesis of hydrogels by free-radical polymerization does not fully complete the reaction, leaving a small number of unreacted monomers. When this approach is used to synthesize double network (DN) hydrogels by a two-step sequential pol… Show more

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Cited by 4 publications
(2 citation statements)
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“…43 To realize the force-triggered surface microstructure growth, the researchers first successfully prepared a DN structure at the surface using a surface-bulk transition strategy. 44,45…”
Section: Mechanochemical Remodeling Polymeric Materialsmentioning
confidence: 99%
“…43 To realize the force-triggered surface microstructure growth, the researchers first successfully prepared a DN structure at the surface using a surface-bulk transition strategy. 44,45…”
Section: Mechanochemical Remodeling Polymeric Materialsmentioning
confidence: 99%
“…Polymer hydrogels that can entrap large amounts of water without losing the integrity of the cross-linked networks have attracted great interests in biomedical applications, such as hemostasis, tissue engineering, and therapy. Noncovalent (e.g., hydrogen bonding and electrostatic interaction) and covalent (e.g., amide bond and Schiff base) interactions have been integrated in the engineering of functional polymer hydrogels. Poly­(ethylene glycol) (PEG) as a low-fouling polymer has been widely used for the engineering of functional hydrogels. , For example, dynamic PEG hydrogels were fabricated via click reaction and hydrogen bonding . However, the terminal end groups of PEG are limited, resulting in low reaction rates and high critical gelation concentrations (CGCs).…”
mentioning
confidence: 99%