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Block Copolymer Self-Assembly

Block copolymers (BCPs) are an interesting class of material that has been proven effective in fabricating photonic materials due to their capability to self-assemble into structures on the scale of the wavelength of visible light. When compared with other materials employed in bottom-up self-assembly (e.g., colloids), BCPs possess several advantages, such as rapid kinetics, macroscopic ordering of the self-assembled structures, and tolerance to a high loading of functional additives. Moreover, the possibility to manipulate the produced coloration simply by tuning the molecular structure of the underlying BCPs allows for their directed-assembly into more complicated microstructures. This enables the production of photonic pigments, with colors spanning the entire visible spectral range and with tunable optical appearance.

Related Publications 

Recent Advances in Block Copolymer Self‐Assembly for the Fabrication of Photonic Films and Pigments
Z Wang, CLC Chan, TH Zhao, RM Parker, S Vignolini – Advanced Optical Materials (2021)2100519
Angular-Independent Photonic Pigments via the Controlled Micellization of Amphiphilic Bottlebrush Block Copolymers
TH Zhao, G Jacucci, X Chen, D-P Song, S Vignolini, RM Parker – Adv Mater (2020) 32, e2002681
Hierarchical Photonic Pigments via the Confined Self-Assembly of Bottlebrush Block Copolymers
D Song, T Zhao, G Guidetti, S Vignolini, RM Parker – ACS nano (2019) 13, 1764
Photonic Resins: Designing Optical Appearance via Block Copolymer Self-Assembly.
D-P Song, G Jacucci, F Dundar, A Naik, H-F Fei, S Vignolini, JJ Watkins – Macromolecules (2018) 51, 2395