摘要
Polymer backbone plays a fundamental role in determining the molecular architecture and properties of polymers.Polymers can be modified by incorporating heteroatoms into their backbones to achieve tunable optical and mechanical properties,such as polyamide,polythioether and polysilane[1].The transition from nonconjugated to conjugated backbones of polymers challenges the traditional view of polymers as insulators,leading to the development of conductive polymers[2].In contrast,metal elements far surpass non-metal elements in both the variety of elemental types and the diversity of their outer-shell electrons,incorporating which into the polymer backbone is promising to create polymer materials with unique properties and applications,such as high mechanical strength and electrical conductivity[3].Integration of metal atoms into the polymer backbones has been reported.However,the lack of uniformity and continuity in the interaction of metal atoms limits electron transfer efficiency and hinders the full utilization of metal elements within polymer materials[4].To this end,a novel metal-backboned polymer was proposed[5,6],wherein the polymer backbone consists entirely of metal atoms interconnected through metal–metal bonds.This novel polymer was found with exceptional optical and electrical properties,showing promising applications in photoelectric devices,flexible electronics,and microwave absorption materials[7,8].
基金
supported by the Ministry of Science and Technology of the People’s Republic of China(2022YFA1203001 and 2022YFA1203002)
the National Natural Science Foundation of China(T2321003,22335003,and 22105045)
Science and Technology Commission of Shanghai Municipality(21511104900 and 20JC1414902).
