CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Ultrahigh strength nanocomposite hydrogels designed by locking oriented tunicate cellulose nanocrystals in polymeric networks
Hu, DN; Cui, YD; Mo, KW; Wang, JM; Huang, YN; Miao, XR; Lin, JY; Chang, CY
2020
Source PublicationCOMPOSITES PART B-ENGINEERING
ISSN1359-8368
Volume197Pages:-
Subtype期刊论文
AbstractHydrogels consisting lots of water resemble the human soft tissues, but their disordered structures and weak mechanical properties usually limit their biomedical applications. Herein, a facile strategy to prepare highly ordered nanocomposite hydrogels with ultrahigh strength is reported, where the oriented tunicate cellulose nanocrystals (TCNCs) were locked in polymeric networks. Firstly, a stretchable supramolecular hydrogel was prepared by loosely crosslinking adamantine moiety contained polymers with beta-cyclodextrin modified TCNCs through host-guest interaction. Subsequently, dual physically cross-linked hydrogel was constructed by introducing Fe3+ ions into the pre-stretched supramolecular hydrogel for the formation of coordination bonds and freezing of oriented TCNCs. The resultant hydrogels exhibited ultrahigh tensile strength, elastic modulus, and toughness, along the direction of pre-stretching. The aligned TCNCs as both multifunctional cross-linking agents and interfacial compatible reinforcements of dual physically cross-linked networks largely contributed to the excellent mechanical performance of nanocomposite hydrogel. Our findings provide a universal method for designing hydrogels with highly ordered architectures and outstanding mechanical performances as potential biomimetic materials for biomedical applications.
KeywordHIGH MECHANICAL STRENGTH HIGH-TOUGHNESS FABRICATION WHISKERS
DOI10.1016/j.compositesb.2020.108118
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33241
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
3.Wuhan Univ, Engn Res Ctr Nat Polymer Based Med Mat Hubei Prov, Wuhan 430072, Peoples R China
4.Wuhan Univ, Key Lab Biomed Polymers, Minist Educ, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Hu, DN,Cui, YD,Mo, KW,et al. Ultrahigh strength nanocomposite hydrogels designed by locking oriented tunicate cellulose nanocrystals in polymeric networks[J]. COMPOSITES PART B-ENGINEERING,2020,197:-.
APA Hu, DN.,Cui, YD.,Mo, KW.,Wang, JM.,Huang, YN.,...&Chang, CY.(2020).Ultrahigh strength nanocomposite hydrogels designed by locking oriented tunicate cellulose nanocrystals in polymeric networks.COMPOSITES PART B-ENGINEERING,197,-.
MLA Hu, DN,et al."Ultrahigh strength nanocomposite hydrogels designed by locking oriented tunicate cellulose nanocrystals in polymeric networks".COMPOSITES PART B-ENGINEERING 197(2020):-.
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