There is a great deal of scientific interest in developing simple, adaptable, and affordable strategies for adhesive preparation. In this study, we present that naturally generated, inexpensive tannic acid (TA) can function as an effective gelation binder for the adhesive formulation with a series of commercially available water-soluble polymers. Due to the presence of a five-polyphenol-arm structure of TA, it can grip the polymer chain by hydrogen bonds or ionic bonds. These effective interactions can be properly balanced by adjusting the weight ratios of polymer to TA, which is the fundamental indication for the preparation of supramolecular adhesives. The prepared supramolecular adhesives demonstrate the variety of functionalities such as good adhesion performance, excellent biocompatibility, and free radical scavenging capabilities. TA as a dynamic and adaptable catechol group modifier renders a facile route for the preparation of multifunctional adhesives, which depicts evident advantages including easy and eco-friendly, inexpensive, and large-scale preparation. These supramolecular adhesives have great potential in the biomedicines, bioelectronics, and building industries.

中文翻译：

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基于水溶性聚合物和单宁酸的超分子粘合剂的简便策略


开发简单、适应性强且经济实惠的粘合剂制备策略具有很大的科学意义。在这项研究中，我们提出天然产生的廉价单宁酸 (TA) 可以作为一系列市售水溶性聚合物的粘合剂配方的有效凝胶粘合剂。由于TA具有五多酚臂结构，它可以通过氢键或离子键抓住聚合物链。通过调整聚合物与TA的重量比可以适当平衡这些有效的相互作用，这是制备超分子粘合剂的基本指标。所制备的超分子粘合剂表现出多种功能，例如良好的粘合性能、优异的生物相容性和自由基清除能力。 TA作为一种动态、适应性强的儿茶酚基团改性剂，为多功能粘合剂的制备提供了一条简便的途径，具有简便、环保、廉价、可大规模制备等明显优点。这些超分子粘合剂在生物医学、生物电子和建筑行业具有巨大的潜力。