Topological adhesion, or topohesion for brevity, links two polymer networks, to be called adherends, even when the adherend networks carry no functional groups for chemical coupling. Uncrosslinked polymers, called stitch polymers, are spread between the two adherends. In response to a trigger, the stitch polymers form a stitch network in topological entanglement with both adherend networks. It is commonly believed that topohesion always takes a long time, but this is a misconceived myth. In principle, two adherends topohere strongly even when the stitch network entangles with each adherend network by a single polymer mesh size. The shallowness of this requirement dictates that topohesion is rate-limited by the gelation of the stitch network, not by the diffusion of the stitch polymers into the adherend networks. We illustrate this concept using two pieces of polyacrylamide hydrogels as adherends, an aqueous solution of cellulose as stitch polymers, and a change in the pH in the cellulose solution as a trigger. By varying the thickness of the cellulose solution, the time to topohere is tunable from seconds to hours. For a solution of thickness of 50 microns adhesion energy of 50 Jm⁻² is attained in 60 s. These experimental findings dispel the myth, and shed light on the times to topohere reported in the literature. The art and science of topohesion provide fertile grounds for fundamental discovery and practical invention to enable unusual applications.

拓扑粘附或简称粘附，将两个聚合物网络（称为被粘附体）连接在一起，即使被粘附体网络不带有用于化学偶联的官能团也是如此。未交联的聚合物（称为缝线聚合物）分布在两个被粘物之间。响应于触发，针脚聚合物与两个被粘物网络在拓扑缠结中形成针脚网络。通常认为，粘连总是需要很长时间，但这是一个误解的神话。原则上，即使针脚网络与每个被粘物网络缠结了一个单一的聚合物网眼大小，两个被粘物也会强烈粘结。该要求的浅薄程度表明，粘合力是由针迹网络的凝胶化而不是由针迹聚合物扩散到被粘物网络中来限制速率的。我们用两片聚丙烯酰胺水凝胶作为被粘物，纤维素水溶液作为缝线聚合物以及纤维素溶液中pH值的变化作为触发因素来说明这一概念。通过改变纤维素溶液的厚度，溶解的时间可以从几秒调整到几小时。对于厚度为50微米的溶液，附着力为50 Jm在60 s内达到^-2。这些实验发现消除了神话，并阐明了文献中报道的渗入时间。拓扑学的艺术和科学为基础发现和实际应用发明提供了肥沃的基础，以实现非常规应用。