分子间力
粘附
材料科学
聚合物
离子液体
化学物理
分子动力学
氢键
流变学
化学工程
离子键合
纳米技术
表面力仪
离子
分子
化学
计算化学
有机化学
复合材料
工程类
催化作用
作者
Xinling Deng,Jiaqi Tang,Guan Wang,Wenhe Jiang,Miaomiao Zhang,Yongkang Liu,Hsin-Lang Chen,Cheng-Lung Chen,Yuangang Li,Kaiqiang Liu,Yu Fang
出处
期刊:ACS Nano
[American Chemical Society]
日期:2022-03-18
卷期号:16 (4): 5303-5315
被引量:18
标识
DOI:10.1021/acsnano.1c10946
摘要
Interfacial adhesion under extreme conditions has attracted increasing attention owing to its potential application of stopping leakages of oil or natural gas. However, interfacial adhesion is rarely stable at ultralow temperatures and in organic solvents, necessitating the elucidation of the molecular-level processes. Herein, we used the intermolecular force-control strategy to prepare four linear polymers by tuning the proportion of hydrogen bonding and the number of electrostatic sites. The obtained polymeric ion liquids displayed strong dynamic adhesion at various interfaces. They also efficiently tolerated organic solvents and ultracold temperatures. Highly reversible rheological behaviors are observed within a thermal cycle between high and ultracold temperatures. Temperature-dependent infrared spectra and theoretical calculation reveal thermal reversibility and interfacial adhesion/debonding processes at the molecular level, respectively. This intermolecular force-control strategy may be applied to produce environmentally adaptive functional materials for real applications.
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