Development of sustainable adhesives requires simultaneous realization of high strength and excellent ductility but remains challenging. Here, we prepare furan-ring-containing biomimetic multiphase polymers to afford fully sustainable, strong, and supertough adhesives, showing that the key factors of these adhesives are the asymmetric structure of the aromatic furan ring and its oxygenated nature. The adhesives exhibit several beneficial structural features: easy phase separation, dynamic hard phases capable of rupturing and re-forming to dissipate energy, strain-induced orientation and recrystallization, and multiple oxygen binding to substrates. All of these factors act in synergy to result in high adhesion strength (12.1 MPa), exceptional toughness (work of debonding >13,000 N m⁻¹), excellent temperature adaptability, and impressive solvent resistance. Thus, the present work provides new perspectives on the design of strong, tough, and fully sustainable adhesives.

可持续粘合剂的开发需要同时实现高强度和出色的延展性，但仍然具有挑战性。在这里，我们制备了含呋喃环的仿生多相聚合物，以提供完全可持续、坚固和超韧的粘合剂，表明这些粘合剂的关键因素是芳族呋喃环的不对称结构及其含氧性质。这些粘合剂表现出几个有益的结构特征：容易的相分离、能够破裂和重新形成以耗散能量的动态硬相、应变诱导的取向和再结晶，以及与基材结合的多重氧。所有这些因素协同作用导致高粘合强度 (12.1 MPa)、出色的韧性（剥离功 >13,000 N·m ^-1)，优异的温度适应性，以及令人印象深刻的耐溶剂性。因此，目前的工作为设计坚固、坚韧且完全可持续的粘合剂提供了新的视角。