Diacetylene-Functionalized Dendrons: Self-Assembled and Photopolymerized Three-Dimensional Networks for Advanced Self-Healing and Wringing Soft Materials

Title
Diacetylene-Functionalized Dendrons: Self-Assembled and Photopolymerized Three-Dimensional Networks for Advanced Self-Healing and Wringing Soft Materials
Authors
김대윤Yu-Jin ChoiDaseal JungSeok-In LimKwang-Un JeongWon-Jin Yoon
Issue Date
2020-07
Publisher
ACS Applied Materials & Interfaces
Citation
VOL 12, NO 29-33245
Abstract
The physical properties of supramolecular soft materials strongly depend on the molecular packing structures constructed by thermodynamically and kinetically controlled molecular self-assembly. To investigate the relationship between molecular function and selfassembled molecular packing structure, a series of diacetylene (DA)-based supramolecules was synthesized by chemically connecting flexible dendrons to DA with amide (aDA− D) or ester (eDA− D) functions. The three-dimensional (3D) organogel network of amide-functionalized aDA− D was prepared in both polar and nonpolar solvents due to the intermolecular hydrogen bonding. 3D networks of aDA− D can be further stabilized by topochemical photopolymerization. The self-healing behavior of aDA− D was observed in the sheet-like structure formed in n-dodecane by the hydrophobic interaction between the gelator and solvent. The wringing behavior of aDA− D was also demonstrated using the dynamic interaction of amide function with n-butanol solvent. Kinetically controlled and photostabilized 3D networks can be a key component from biomedical devices to soft robotic applications.
URI
https://pubs.kist.re.kr/handle/201004/71713
ISSN
1944-8244
Appears in Collections:
KIST Publication > Article
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