The chain topology of polymer molecules arguably dictates their fundamental properties and functions. During the first two decades of this century a number of remarkable innovations have been observed in the field of polymer chemistry, to realize the precision designing of, in particular, a variety of cyclic and multicyclic polymer topologies. In this Perspective article, ongoing achievements and expectable breakthroughs in topological polymer chemistry are highlighted, by emphasizing the spectacular diversification of the choice of topologies in macromolecules beyond conventional linear or randomly branched forms.

中文翻译：

---

环状和拓扑聚合物：正在进行的创新和即将到来的突破

聚合物分子的链拓扑可以说是决定其基本性质和功能的因素。在本世纪的前二十年中，已经在聚合物化学领域中观察到许多显着的创新，以实现尤其是各种环状和多环聚合物拓扑结构的精确设计。在这篇“观点”文章中，通过强调大分子在常规线性或随机分支形式之外的拓扑结构选择的惊人多样化，突出了拓扑聚合物化学领域的不断发展的成就和预期的突破。