Bottom-Up Self-Assembly of Aramid Amphiphiles for Uniaxially Oriented Macroscopic Fibers
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초록
내용
Bottom-up self-assembly of amphiphilic small molecules can provide the various sophisticated nanostructures that are not normally fabricated by top-down processing method. In this study, aramid building block-based amphiphiles were newly synthesized via amidation coupling reaction incorporating anionic, cationic, and zwitterionic head groups with hydrophobic hydrocarbon tails. These molecules are organized into the nanoribbons in the water mainly driven by strong intermolecular hydrogen bonding and pi stacking interaction. The nanophase separation of each building blocks of polar head group and hydrophobic moiety leads the growth of anisotropically long fibers resulting the macroscopic fiber threads. This work was supported by the KIST Institutional Program and Korea Government MSIT (2021R1R1R1004226).