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Highly asymmetric lamellar nanostructures from nanoparticle-linear hybrid block copolymers
| Title: | Highly asymmetric lamellar nanostructures from nanoparticle-linear hybrid block copolymers |
| Authors: | Watanabe, Kodai Browse this author | | Katsuhara, Satoshi Browse this author | | Mamiya, Hiroaki Browse this author | | Kawamura, Yukihiko Browse this author | | Yamamoto, Takuya Browse this author →KAKEN DB | | Tajima, Kenji Browse this author | | Isono, Takuya Browse this author | | Satoh, Toshifumi Browse this author →KAKEN DB |
| Keywords: | A-LAM | | BCP |
| Issue Date: | 21-Aug-2020 |
| Publisher: | Royal Society of Chemistry |
| Journal Title: | Nanoscale |
| Volume: | 12 |
| Issue: | 31 |
| Start Page: | 16526 |
| End Page: | 16534 |
| Publisher DOI: | 10.1039/d0nr05209d |
| Abstract: | The highly asymmetric lamellar (A-LAM) nanostructure is one of the most important template geometries for block copolymer (BCP) lithography. However, A-LAM is unattainable from conventional BCPs, and there is no general molecular design strategy for A-LAM-forming BCP. Herein, a nanoparticle-linear hybrid BCP system is reported, which is designed based on the intramolecular crosslinking technique, as a remarkably effective platform to obtain the A-LAM morphology. The hybrid BCPs consisting of polystyrene single-chain nanoparticles and linear polylactide segments show a remarkable capability to form the A-LAM morphology in bulk, where a maximum width ratio of 4.1 between the two domains is obtained. This unusual phase behavior is attributed to the bulky and rigid characteristics of the nanoparticle block. Furthermore, the thin films of these hybrid BCPs show perpendicularly oriented A-LAM morphology on a chemically modified Si substrate, allowing promising application in the fabrication of asymmetric line-and-space nanopatterns. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/82517 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 磯野 拓也
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