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Precisely Prepared Hierarchical Micelles of Polyfluorene-block-Polythiophene-block-Poly(phenyl isocyanide) via Crystallization-Driven Self-Assembly.

Authors :
Pan YN
Ye CC
Huang SL
Wang C
Han MY
Xu L
Source :
Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2024 Oct 28, pp. e202418131. Date of Electronic Publication: 2024 Oct 28.
Publication Year :
2024
Publisher :
Ahead of Print

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 <subscript>m</subscript> -b-2 <subscript>n</subscript> )) 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 <subscript>m</subscript> -b-2 <subscript>n</subscript> ) 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 <subscript>m</subscript> -b-2 <subscript>n</subscript> ) 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.<br /> (© 2024 Wiley-VCH GmbH.)

Details

Language :
English
ISSN :
1521-3773
Database :
MEDLINE
Journal :
Angewandte Chemie (International ed. in English)
Publication Type :
Academic Journal
Accession number :
39467009
Full Text :
https://doi.org/10.1002/anie.202418131