Dynamic covalent polymer networks (DCPN) have historically attracted attention for their unique roles in chemical recycling and self-healing, which are both relevant for sustainable societal development. Efforts in these directions have intensified in the past decade with notable progress in newly discovered dynamic covalent chemistry, fundamental material concepts, and extension toward emerging applications including energy and electronic devices. Beyond that, the values of DCPN in discovering/designing functional properties not offered by classical thermoplastic and thermoset polymers have recently gained traction. In particular, the dynamic bond exchangeability of DCPN has shown unparalleled design versatility in various areas including shape-shifting materials/devices, artificial muscles, and microfabrication. Going beyond this basic bond exchangeability, various molecular mechanisms to manipulate network topologies (topological transformation) have led to opportunities to program polymers, with notable concepts such as living networks and topological isomerization. In this review, we provide an overview of the above progress with particular focuses on molecular design strategies for the exploitation of functional material properties. Based on this, we point out the remaining issues and offer perspectives on how this class of materials can shape the future in ways that are complementary with classical thermoplastic and thermoset polymers.

中文翻译：

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动态共价聚合物网络：设计除化学回收和自我修复功能之外的分子平台

动态共价聚合物网络（DCPN）历来因其在化学回收和自我修复中的独特作用而备受关注，这两者均与可持续社会发展相关。在过去的十年中，随着新发现的动态共价化学，基本的材料概念以及向新兴应用（包括能源和电子设备）的扩展，在这些方向上的努力得到了明显的发展。除此之外，DCPN在发现/设计经典热塑性和热固性聚合物无法提供的功能特性方面的价值近来得到了关注。特别是，DCPN的动态键可交换性在包括形变材料/装置，人造肌肉和微细加工在内的各个领域都显示出无与伦比的设计多功能性。超越了基本的键交换性，操纵网络拓扑结构（拓扑转换）的各种分子机制带来了对聚合物进行编程的机会，具有显着概念，例如活性网络和拓扑异构化。在这篇综述中，我们提供了上述进展的概述，特别侧重于利用功能材料特性的分子设计策略。在此基础上，我们指出了剩余的问题，并提供了有关此类材料如何以与传统热塑性和热固性聚合物互补的方式塑造未来的观点。以及诸如生命网络和拓扑异构化等著名概念。在这篇综述中，我们提供了上述进展的概述，特别侧重于利用功能材料特性的分子设计策略。在此基础上，我们指出了剩余的问题，并提供了有关此类材料如何以与传统热塑性和热固性聚合物互补的方式塑造未来的观点。以及诸如生命网络和拓扑异构化等著名概念。在这篇综述中，我们提供了上述进展的概述，特别侧重于利用功能材料特性的分子设计策略。在此基础上，我们指出了剩余的问题，并提供了有关此类材料如何以与传统热塑性和热固性聚合物互补的方式塑造未来的观点。