Biomimetic Impact Protective Supramolecular Polymeric Materials Enabled by Quadruple H-Bonding

被引：134

作者：

Liu, Kai ^{[1
]}

Cheng, Lin ^{[1
]}

Zhang, Ningbin ^{[2
]}

Pan, Hui ^{[1
]}

Fan, Xiwen ^{[3
]}

Li, Guangfeng ^{[1
]}

Zhang, Zhaoming ^{[1
]}

Zhao, Dong ^{[1
]}

Zhao, Jun ^{[1
]}

Yang, Xue ^{[1
]}

Wang, Yongming ^{[1
]}

Bai, Ruixue ^{[1
]}

Liu, Yuhang ^{[1
]}

Liu, Zhiyuan ^{[4
]}

Wang, Sheng ^{[3
]}

Gong, Xinglong ^{[3
]}

Bao, Zhenan ^{[5
]}

Gu, Guoying ^{[2
,6
]}

Yu, Wei ^{[1
]}

Yan, Xuzhou ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Mech Engn, Robot Inst, Shanghai 200240, Peoples R China

[3] Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, CAS Ctr Excellence Complex Syst Mech, Hefei 230027, Peoples R China

[4] Chinese Acad Sci, Shenzhen Inst Adv Technol, CAS Key Lab Human Machine Intelligence Synergy Sy, Shenzhen 518055, Peoples R China

[5] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA

[6] Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2021年 / 143卷 / 02期

基金：

上海市自然科学基金;

关键词：

NETWORK; ANODES;

D O I：

10.1021/jacs.0c12119

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nature has been inspiring scientists to fabricate impact protective materials for applications in various aspects. However, it is still challenging to integrate flexible, stiffness-changeable, and protective properties into a single polymer, although these merits are of great interest in many burgeoning areas. Herein, we report an impact-protective supramolecular polymeric material (SPM) with unique impact-hardening and reversible stiffness-switching characteristics by mimicking sea cucumber dermis. The emergence of softness-stiffness switchability and subsequent protective properties relies on the dynamic aggregation of the nanoscale hard segments in soft transient polymeric networks modulated by quadruple H-bonding. As such, we demonstrate that our SPM could efficiently reduce the impact force and increase the buffer time of the impact. Importantly, we elucidate the underlying mechanism behind the impact hardening and energy dissipation in our SPM. Based on these findings, we fabricate impact- and puncture-resistant demos to show the potential of our SPM for protective applications.

引用

页码：1162 / 1170

页数：9

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