Mechanical Training Enabled Reinforcement of Polyrotaxane-Containing Hydrogel

Jin, Jia-Ni; Yang, Xi-Ran; Wang, Yan-Fang; Zhao, Lei-Min; Yang, Liu-Pan; Huang, Liping1; Jiang, Wei1

2023

10.1002/anie.202218313

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   Impact Factor & Quartile

1433-7851

1521-3773

Many strategies have been developed for constructing anisotropic hydrogels, however, it remains a challenge to fabricate hydrogels with anisotropic nanocrystalline domains from intrinsically soft networks. Here, we report a naphthotube-based polyrotaxane-containing hydrogel that can be reinforced via mechanical training. During the training process, the hydrogel can adopt reorientation of polymer chains to form anisotropic structures driven by external uniaxial force. Due to the multiple hydrogen bonding sites and movable feature of naphthotube, the sliding of naphthotube on PEG chains simultaneously inducing the zipping of adjacent polymer chains to form densely anisotropic nanocrystalline domains through hydrogen bonded networks. Thus, the trained hydrogel exhibits an enhanced tension stress of approximate to 110 kPa, which realize a remarkable enhancement of approximate to 10 times compare to initial state. This study provides a new tactic for improving the mechanical performance of soft materials.

Hydrogel Reinforcement Integrated Noncovalent Interactions Mechanical Training Naphthotube

SCI

English

NI Journal Papers

Corresponding

National Natural Science Foundation of China[22125105] ; Shenzhen Science and Technology Innovation Committee[JCYJ20180504165810828] ; Guangdong High-Level Personnel of Special Support Program[2021M701569] ; China Postdocroral Science Foundation[2022A1515110991] ; Guangdong Basic and Applied Basic Research Foundation["2019A1515110216","2020B121201002"] ; [2019TX05C157]

Chemistry

Chemistry, Multidisciplinary

WOS:000916532800001

WILEY-V C H VERLAG GMBH

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Grubbs Inst, Guangdong Prov Key Lab Catalysis, Xueyuan Blvd 1088, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Chem, Xueyuan Blvd 1088, Shenzhen 518055, Peoples R China

Jin, Jia-Ni,Yang, Xi-Ran,Wang, Yan-Fang,et al. Mechanical Training Enabled Reinforcement of Polyrotaxane-Containing Hydrogel[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2023.

Jin, Jia-Ni.,Yang, Xi-Ran.,Wang, Yan-Fang.,Zhao, Lei-Min.,Yang, Liu-Pan.,...&Jiang, Wei.(2023).Mechanical Training Enabled Reinforcement of Polyrotaxane-Containing Hydrogel.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION.

Jin, Jia-Ni,et al."Mechanical Training Enabled Reinforcement of Polyrotaxane-Containing Hydrogel".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023).