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Nanoparticle-Induced Self-Assembly of Block Copolymers into Nanoporous Films at the Air-Water Interface

Title
Nanoparticle-Induced Self-Assembly of Block Copolymers into Nanoporous Films at the Air-Water Interface
Authors
Kang, SeulkiRyu, Du YeolRinge, EmilieHickey, Robert J.Park, So-Jung
Ewha Authors
박소정
SCOPUS Author ID
박소정scopus
Issue Date
2020
Journal Title
ACS NANO
ISSN
1936-0851JCR Link

1936-086XJCR Link
Citation
ACS NANO vol. 14, no. 9, pp. 12203 - 12209
Keywords
self-assemblynanoparticleblock copolymerinterfaceporousbreath figure
Publisher
AMER CHEMICAL SOC
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
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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DOI
10.1021/acsnano.0c05908
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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