Design of High-Density Helical Polymer Brush on Silica Nanoparticles for the Size Recognition of Fullerene Molecules

Masanao Sato, Tomoki Kato, Hitoshi Shimamoto, Kazutaka Kamitani, Noboru Ohta, Tomoyasu Hirai, Atsushi Takahara

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

High-density syndiotactic poly(methyl methacrylate) (st-PMMA) brushes form a helical structure and encapsulate fullerene molecules in their helical cavities, leading to a PMMA brush/fullerene inclusion complex. The brushes recognize the size of guest molecules and spontaneously adapt their helical diameter to the guest molecules. Both polymer brush/C60 and polymer brush/C70 inclusion complex on the flat substrate were characterized on the basis of grazing incidence wide-angle X-ray diffraction (GIWAXD) measurements, and it is revealed that the main chains oriented perpendicular to the substrate. Moreover, high-density st-PMMA brushes grafted onto nanoparticles efficiently separate C70 molecules from the mixture of C60 and C70 solution. Even after 5× repeating process, the selectivity for C70 molecules remains at 99%.

Original languageEnglish
Pages (from-to)148-152
Number of pages5
JournalACS Macro Letters
Volume7
Issue number2
DOIs
Publication statusPublished - Feb 20 2018

Fingerprint

Fullerenes
Brushes
Silicon Dioxide
Polymers
Silica
Nanoparticles
Molecules
Polymethyl Methacrylate
Polymethyl methacrylates
Substrates
X ray diffraction

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Design of High-Density Helical Polymer Brush on Silica Nanoparticles for the Size Recognition of Fullerene Molecules. / Sato, Masanao; Kato, Tomoki; Shimamoto, Hitoshi; Kamitani, Kazutaka; Ohta, Noboru; Hirai, Tomoyasu; Takahara, Atsushi.

In: ACS Macro Letters, Vol. 7, No. 2, 20.02.2018, p. 148-152.

Research output: Contribution to journalArticle

Sato, Masanao ; Kato, Tomoki ; Shimamoto, Hitoshi ; Kamitani, Kazutaka ; Ohta, Noboru ; Hirai, Tomoyasu ; Takahara, Atsushi. / Design of High-Density Helical Polymer Brush on Silica Nanoparticles for the Size Recognition of Fullerene Molecules. In: ACS Macro Letters. 2018 ; Vol. 7, No. 2. pp. 148-152.
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