One-Shot Synthesis and Melt Self-Assembly of Bottlebrush Copolymers with a Gradient Compositional Profile
| Autor: | Alexander E. Ribbe, Javid Rzayev, Dmytro Nykypanchuk, Liuyin Jiang |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
One shot
Materials science Polymers and Plastics Organic Chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Microstructure Metathesis 01 natural sciences Soft materials 0104 chemical sciences Inorganic Chemistry Macromolecular assembly Polymerization Chemical engineering Materials Chemistry Copolymer Self-assembly 0210 nano-technology |
| Zdroj: | ACS macro letters. 7(6) |
| ISSN: | 2161-1653 |
| Popis: | Morphological control plays a central role in soft materials design. Herein, we report the synthesis of a gradient bottlebrush architecture and its role in directing molecular packing in the solid state. Bottlebrush copolymers with gradient interfaces were prepared via one-shot ring-opening metathesis polymerization of exo- and endo-norbornene-capped macromonomers. Kinetic studies revealed a gradient compositional profile separating the two blocks along the backbone. Side-chain symmetric gradient bottlebrush copolymers exhibited a strong tendency to assemble into cylindrical microstructures, in contrast to their block copolymer analogs with sharp interfaces. Such exquisite architectural control of the interfacial composition affords a delicate handle to direct macromolecular assembly. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|