Poly[2]catenane Gels Based on Sequential Assembly of Small Molecules

作     者：Hanwei Zhang Jinsa Li Ziqing Hu Xiaofan Ji Hanwei Zhang;Jinsa Li;Ziqing Hu;Xiaofan Ji

作者机构：Xi'an Rare Metal Materials Institute Co.Ltd.Xi'anShaanxi 710016China Key Laboratory of Materials Chemistry for Energy Conversion and StorageMinistry of EducationHubei Key Laboratory of Materials Chemistry and Service FailureHubei Engineering Research Centerfor Biomaterials and Medical Protective MaterialsState Key Laboratory of Materials Processing and Die&Mould TechnologySchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhanHubei 430074China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2024年第42卷第22期

页      面：2699-2704页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：X.Ji acknowledges funding from the National Natural Science Foundation of China(No.22001087) X.Ji also appreciates the support from the Huazhong University of Science and Technology,where he is being supported by Fundamental Research Funds for the Central Universities(Grant 2020kfyXJJS013) X.Ji appreciates support from the Interdisciplinary Research Program of HUST(2023JCYJ013) 

主　　题：Polycatenane Gel Dynamic covalent bond Non-covalent bond Self-assembly Stimuli-responsiveness Supramolecular chemistry Networks Hydrogen bonding 

摘      要：Polycatenane gels have attracted extensive attention due to their high degree of freedom and ***,the syntheses of poly[2]catenane gels reported to date all rely on the polymer as the ***,we prepared poly[2]catenane gels based on entirely sequential assembly of small *** M1 with two unclosed rings was first prepared,which self-assembled to form supramolecular polymers(SPs)via hydrogen bonding andπ-π*** adding small molecule monomers M2 and M3 with aldehyde groups,ring closing of SPs occurred because the amino groups in the SPs reacted with M2 to form imine *** addition,M3,which had twice the number of aldehyde groups as M2,enabled SPs to ring-close,causing the proceeding of crosslinking process at the same *** linear SPs were transformed into poly[2]catenane gel *** to the presence of hydrogen bonds in the poly[2]catenane gel,the gel also possessed stimulus responsiveness and self-healing properties.