"German Applied Chemistry" reports new progress in the research of Huawi dynamic dynamic sulfur polymers

Designing and constructing high -performance recyclable intelligent materials is an important means to solve the growing global growing plastic problem. How to take into account the high performance and dynamicity of materials is one of the main challenges. Recently, the research team of Professor Qu Dahui of the School of Chemistry and Molecular Engineering has made new progress in the field of dynamic covalent biulfonic polymer materials. The relevant research results are "A Chemically Reyclable Crosslinked Polymer Network ENABLOGONAL DYNAMIC COVALENT CheMistry". German Applied Chemistry (Angew. Chem. Int. Ed., 2022, E202209100).

The concept of chemical closed-loop recovery of polysulfedic acid materials has been verified in the early work base of the research group (Matter, 2021,4, 1352-1364), but the polymer material still belongs to the super molecular crosslinking network, and according to the mechanical performance classification, it still belongs to the classification of mechanical performance. The field of soft materials is difficult to apply to engineering plastic level. Covalent cross -linked is the most direct and effective way to improve the mechanical strength of materials, but at present, the vast majority of covalent cross -linked materials are difficult to achieve closed -loop chemical recovery. Researchers used two orthogonal dynamic chemistry (diulfulfen polymerization and aluminum crosslinkening) to build a chemical recovery high -performance dynamic polymer network. Due to the synergy interaction of super molecular chemistry (mesh hydrogen bonding) and dynamic covalent chemistry (sulfur bonds, gyrus bonds), the obtained materials take into account the excellent mechanical properties and dynamics. The agglomeration process of polymer materials can be used with the nuclear self -catalytic polymer of the galm pyramid base. The simple, efficient, and closed -loop chemical recycling of high -performance covalent -linked polymer materials provides new strategies for designing and building high -performance chemical recycling plastics.

The research was completed by Deng Yuanxin, a post -doctoral school of East China University of Science and Technology, and was carefully guided by Academician Tian He, Professor Qu Dahui, and Professor Benl. Fernlinga. The work was supported by the National Natural Science Foundation of China, Materials Biology and Dynamic Chemistry Education, major special projects in Shanghai, Shanghai Science and Technology Council, Ferrich and Nobel Scientists Joint Research Center, and Postdoctoral Science Fund.

Original link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202209100

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