Ultrahigh strength nanocomposite hydrogels designed by locking oriented tunicate cellulose nanocrystals in polymeric networks
文献类型：期刊论文
| 作者 | Hu, DN; Cui, YD; Mo, KW; Wang, JM; Huang, YN; Miao, XR; Lin, JY; Chang, CY |
| 刊名 | COMPOSITES PART B-ENGINEERING
 |
| 出版日期 | 2020 |
| 卷号 | 197页码:- |
| 关键词 | HIGH MECHANICAL STRENGTH HIGH-TOUGHNESS FABRICATION WHISKERS |
| ISSN号 | 1359-8368 |
| DOI | 10.1016/j.compositesb.2020.108118 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Hydrogels 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. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33241]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Wuhan Univ, Engn Res Ctr Nat Polymer Based Med Mat Hubei Prov, Wuhan 430072, Peoples R China 2.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 4.Wuhan Univ, Key Lab Biomed Polymers, Minist Educ, Wuhan 430072, Peoples R China |
| 推荐引用方式 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):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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