Research on Huawi Sulfulus dynamic assembly materials has been made in new progress.

Author:East China University of Techn Time:2022.08.12

Using molecular engineering strategies to control the macro performance of the substance by controlling the self -assembly behavior of the dynamic molecules of this sign, it provides an important solution for the rational design of smart materials. Combining dynamic sulfur bonds with non -covalent self -assembly, and accurate collaboration and coupling of multiple dynamic keys can achieve high -performance dynamic polymerization materials. Recently, Professor Qu Dahui, a School of Chemistry and Molecular Engineering of East China University of Technology, Ferrina Nobel Prize Scientist Joint Research Center, has made important progress in this field. For the orderly ion film materials, the relevant research results are published in the Chinese comprehensive flagship magazine Natl. SCI. Rev. and the Chinese Chemical Society flagship magazine CCS Chemistry.

Through molecular engineering strategies to create a strong and waterproof adhesion material, it promotes the basic understanding of the adhesion mechanism, and it is expected to further promote the application of biomedical adhesion materials in the future. In this regard, the researchers proposed a simple and effective strategy to combine the natural sulfuric acid and the iron-phthal phenols stimulated by the mussels to prepare a high-intensity (> 5 mPa) underwater adhesion underwater adhesion Materials, at the same time, show a significant high -adhesion strength on different surfaces (up to 11.7 mPa). The experimental results show that the strong cross-linking role of iron-de-density and high-density hydrogen bonds are the cause of the high interface bonding intensity. Essence The dynamic covalent polyssius network gives the material reconstruction characteristics, and it can be reused by repeated heating and cooling. This molecular engineering strategy provides a universal solution for the design and construction of dynamic superimum adhesion materials. The result is published in natl. Sci. Rev.

On the other hand, combining the opening aggregate aggregation of sulfide mediated with β-folding hydrogen bonds self-assembly can drive the small molecules to assemble the accurate and adjustable orderly ion network with the controllable ion transmission function. This strategy uses one -step evaporation to induce self -assembly to guide discrete small molecules to form high -crystalline layer -shaped ion networks. By changing the length of the oligopo peptide side chain, nano -accuracy can be adjusted to control the network spacing. The synergy of layer -like structure and end -end hydrophilic group promotes the formation of interlayer water channels, making the assembly film have efficient ion transmission performance. In addition, thanks to the dynamicity of the polysulfonic network, researchers have achieved chemical recovery of the individual under mild conditions. As the first high -performance polymerization with closed -loop chemical recycling performance, this simple and efficient molecular engineering strategy will provide important basis and ideological guidance for the design of conductive polymers, sensors and intelligent force. The result is published in the title of "

The above two research work was mainly completed under the guidance of Professor Qu Dahui, a doctoral student of the School of Chemistry, East China University of Technology, and was carefully guided by Academician Tian He. The research work has also received the National Natural Science Foundation of China Outstanding Youth Fund, Materials Biology and Dynamic Chemistry Education Center, Shanghai Science and Technology Special Special, Shanghai Science and Technology Commission, Ferrich Nobel Scientist Joint Research Center and East China The support of Zhang Jiangshu Youbo, the University of Science and Technology, focuses on the support of project funds and other project funds.

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