Abstract:
π-Conjugated polymers have gained extensive attention due to potential applications in electroluminescent materials, field effect transistor, etc. The precise preparation of fiber-like π-conjugated fiber-like hybrid nanostructures of controlled length and composition has always been one of the research directions to improve the performance of materials, and still remains a challenge. Recently, Prof. Huang and Prof. Feng’s group from Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, demonstrated an efficient and versatile platform for the construction of oligo(
p-phenylenevinylene)(OPV)-based multi-component and multi-function fiber-like hybrid nanostructures by the combination of non-covalent interaction and “living” crystallization-driven self-assembly (CDSA). Through self-seeding and seeded growth approaches, uniform continuous micelles and segmented A-B-A, B-A-B-A-B multiblock fiber-like comicelles were able to be generated with tunable lengths for each block. By taking advantage of pyridyls of poly(2-vinylpyridine) (P2VP)-forming coronas, P2VP domains in these micelles or comicelles could be functionalized with diverse inorganic(CdTe, Au, Ag and Fe
3O
4) and polymeric nanoparticles as well as metal oxide coatings (SiO
2 and TiO
2) to afford hierarchical hybrid nanostructures. This work provides a versatile strategy toward the fabrication of multi-component, multi-function π-conjugated fiber-like nanostructures with the capacity to be selectively functionalized.