East China University
Bio – He Tian is a member of the Chinese Academy of Science and a Fellow of the TWAS – the World Academy of Science – for the advancement of science in developing countries. His current research interests include supramolecular machines and switches and development of interdisciplinary material science that determine the electronic and optical properties of materials. He serves now as Vice President of the Chinese Chemical Society. Prof. Tian is now Associate Editors of ACS Applied Materials & Interfaces and Science China: Chem. He has been listed as a Highly Cited Researcher in Chemistry (2014-2020 by Web of Science).
Abstract Title: Dynamic Assembling for Smart Materials
Abstract Body: Molecular machine and its related multi-level dynamic assemblies have been one of the trending topics for designing smart materials in chemical approaches. A more recent strategy to develop smart materials with excellent stimuli-responsiveness, dynamic reversibility, self-healing ability as well as self-adaptability is to build molecular elements into a multi-level assembly via dynamic covalent and non-covalent interactions. Recently, our group has successfully developed some dynamic smart materials based on dynamic covalent/non-covalent bonding, referring as some representative examples for this multi-level assembly approach. Moreover, one of the key principles for future green chemistry and designing sustainable materials is replacing conventional covalent interactions with non-covalent ones in the synthesis of functional materials. However, what are the dual effects of incorporating covalent interactions with non-covalent interactions in material design and synthesis? Is it feasible for recycling dynamic reversible polymers in a close-looped manner? Several important but challenging questions are yet to be addressed, e.g. how to achieve selective depolymerization, solvent-free synthesis, and recycling reusable monomers.