Living Light-Induced Crystallization-Driven Self-Assembly for Rapid Preparation of Semiconducting Nanofibers

• DOI: 10.1021/jacs.8b01954
• Publication Date: 2018-05-01T18:41:01Z
• Authors: Suyong Shin; Florian Menk; Youngjin Kim; Jeewoo Lim; Kookheon Char; Rudolf Zentel; Tae-Lim Choi
• Keywords: 02 engineering and technology; 0210 nano-technology

Well-defined nanostructures composed of conjugated polymers have attracted significant attention due to their intriguing electronic and optical properties. However, precise control the size uniformity these semiconducting is still rare challenging, despite recent advances in strategies obtain self-assembled with narrow dispersions. Herein, we demonstrate preparation fluorescent block copolymers by one-shot polymerization rapid formation nanofibers a few minutes via light-induced crystallization-driven self-assembly, driven facile cis-to-trans photoisomerization its poly(p-phenylenevinylene) blocks. Furthermore, living self-assembly was possible, allowing not only excellent length distribution but also ABA triblock comicelles gradient comicelles, be produced seeded growth. Lastly, growth could activated deactivated repeatedly switching light on off, analogous radical polymerization.