A flexible composite gel based on multiple hydrogen bonding interaction is prepared by using the $P=O∕P-O$ group. And it presents remarkable stretchability and self-healing efficiency (nearly 100%). Mechanical property is investigated by analyzing the stress–strain curves and hydrogen bonding interaction is explored by density functional theory. This study reveals that mechanical property of the polyaniline is improved by establishing dynamic hydrogen bonding with flexible molecular chains.

中文翻译：

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合理设计多个氢键以提高刚性PANI的机械性能

通过使用多种氢键相互作用制备柔性复合凝胶。 $P=Ø∕P-Ø$组。它具有出色的可拉伸性和自我修复效率（接近100％）。通过分析应力-应变曲线研究机械性能，并通过密度泛函理论探索氢键相互作用。这项研究表明，通过与柔性分子链建立动态氢键可以改善聚苯胺的机械性能。