Chemical Research in Chinese Universities ›› 2023, Vol. 39 ›› Issue (5): 736-740.doi: 10.1007/s40242-023-3153-7

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A General Approach for Synthesis of Circularly Assembled Supramolecular Polymers by Means of Region-confined Amphiphilic Supramolecular Polymerization

ZHANG Lei, ZHANG Chenyang, MIN Jing, LIU Chenglong, MAO Shizhong, WANG Liyan, YANG Bing, DONG Zeyuan   

  1. State Key Laboratory of Supramolecular Structure and Materials, Center for Supramolecular Chemical Biology, College of Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2023-07-06 Online:2023-10-01 Published:2023-09-26
  • Contact: DONG Zeyuan E-mail:zdong@jlu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos.92156012, 22071078) and the Program for Jilin University Science and Technology Innovative Research Team(JLUSTIRT), China(No.2019TD-36).

Abstract: Topological supramolecular polymers are responsible for design of innovative materials with unique physical properties but remain a challenging task to prepare by means of supramolecular polymerization. In this contribution, we present a novel method of region-confined amphiphilic supramolecular polymerization (RASP) in a controllable two-step self-organization pathway, which was certified by a new type of pyridine-oxadiazole alternating 48-membered macrocycles with structurally regional distribution of distinct self-assembling groups that can self-organize into circular supramolecular architectures. Meanwhile, water molecule plays a crucial role in RASP, and the water content in nonpolar solvent chloroform is sensitive to trigger controllable amphiphilic self-organization. Moreover, differing from the traditional rodlike micelles formed by self-assembly of linearly amphiphilic molecules, this approach of RASP exclusively gives rise to the formation of circularly assembled supramolecular polymers.

Key words: Supramolecular polymerization, Circular supramolecular architecture, Controllable self-assembly, Organic macrocycle, Region-confined amphiphilic supramolecular polymerization