协同的共价-超分子聚合物

Synergistic Covalent-and-Supramolecular Polymers

共价聚合物性质稳定但缺乏动态性,超分子聚合物动态性有余而机械性能不足.受生命体中超分子聚合物工作机制的启发,我们将共价聚合物和超分子聚合物整合到同一体系,并采用有效的连接方式将两者关联,进而融合甚至放大2种聚合物的性能优势,发展了协同的共价-超分子聚合物.本文从协同的共价-超分子聚合物的概念及特点出发,介绍了这一特殊形式的聚合物.然后,总结了现有的用于构筑协同的共价-超分子聚合物的聚合策略.进一步地,重点介绍了协同聚合物的结构和性能表现,阐明协同聚合物的性能优势和构效关系.最后,指出了协同聚合物未来发展所面临的关键问题和重要挑战.协同的共价-超分子聚合物体系的提出,可用于克服单一聚合物体系存在的固有缺陷,推动实现超分子聚合物的现实应用,也为发展机械性能和动态性俱佳的智能高分子材料提供新思路.

Covalent polymers are robust but not adaptive, while supramolecular polymers have fantastic dynamic properties but lack good mechanical properties, which limit their applications in specific fields. Inspired by the working mechanism of the supramolecular polymers in living organisms, covalent polymers and supramolecular polymers are integrated into one system and connect with each other by effective interactions to afford a new fashion of polymeric system named as synergistic covalent-and-supramolecular polymers(CSPs), which can combine and even amplify the merits of the two kinds of polymers. This article first introduces the definition and features of CSPs. Then we summarize the current synthetic strategies for the synergistic CSPs. Further, the structures and properties of synergistic CSPs are emphasized to establish their relationships and elucidate property advantages of synergistic CSPs. Finally, the key scientific issues and challenges in the field of synergistic CSPs are discussed. Synergistic CSPs are beneficial to remedy the deficiencies of individual polymer,and thus prompt the practical applications of supramolecular polymers. Furthermore, it also provides a new approach to preparing polymeric materials with mechanically robust yet dynamic properties.