Precisely Prepared Hierarchical Micelles of Polyfluorene‐ block ‐Polythiophene‐ block ‐Poly(phenyl isocyanide) via Crystallization‐Driven Self‐Assembly
Year: 2024
Type: article
Abstract: The precise preparation of hierarchical micelles is a fundamental challenge in modern materials science and chemistry. Herein, poly(di‐n‐hexylfluorene)‐ block ‐poly(3‐tetraethylene glycol thiophene) (poly( 1 m ‐ b ‐ 2 n )) diblock copolymers and polyfluorene‐ block ‐polythiophene‐ block ‐poly(phenyl isocyanide) triblock copolymers were synthesized using a one‐pot process via the sequential addition of corresponding monomers using a Ni(II) complex as a single catalyst for living/controlled polymerization. The crystallization‐driven self‐assembly of amphiphilic conjugated poly( 1 m ‐ b ‐ 2 n ) led to the formation of nanofibers with controlled lengths and narrow dispersity. The block copolymers exhibited white, yellow, and red emissions in different self‐assembly states. By using uniform poly( 1 m ‐ b ‐ 2 n ) nanofibers as seeds, introducing the polyfluorene‐ block ‐polythiophene‐ block ‐poly(phenyl isocyanide) triblock polymer as a unimer in the seed growth process, and adjusting the structure of the poly(phenyl isocyanide) block and the polarity of self‐assembly solvent, A−B−A triblock micelles, multiarm branched micelles, and raft micelles were prepared.
Source: Angewandte Chemie
Authors: Ya‐Nan Pan, Chen‐Chen Ye, Si‐Lin Huang, Chao Wang, Man‐Yi Han, Lei Xu
Institution: Huaibei Normal University
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
Award: G553574341
OpenAlex ID: W4403825888