Nanoparticle-Induced Self-Assembly of Block Copolymers into Nanoporous Films at the Air-Water Interface
- 주제(키워드) block copolymer , breath figure , interface , nanoparticle , porous , self-assembly
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted
- 발행기관 NLM (Medline)
- 발행년도 2020
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000174491
- 본문언어 영어
- Published As http://dx.doi.org/10.1021/acsnano.0c05908
- PubMed https://pubmed.ncbi.nlm.nih.gov/32924436
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Herein, we report the cooperative self-assembly of nanoparticles and block copolymers at the air-water interface, which can generate highly uniform and readily transferable composite films with tunable nanoscale architecture and functionalities. Interestingly, the incorporation of nanoparticles significantly affects the self-assembly of block copolymers at the interface. The nanoparticle-induced morphology change occurs through distinct mechanisms depending on the volume fraction of the hydrophobic block. For block copolymers with a relatively small hydrophobic volume fraction, the morphology transition occurs through the nanoparticle-induced swelling of a selective block. When the hydrophobic volume fraction is large enough, added nanoparticles promote the breath figure assembly, which generates uniform honeycomb-like porous structures with unusual nanoscale periodicity. This approach is generally applicable to various types of nanoparticles, constituting a simple one-step method to porous thin films with various functionalities.
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