2024-03-29T12:08:38Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00026401
2023-01-16T04:16:59Z
320:321:322
Spontaneous Preparation of Monodispersed, Structural Colored, Spherical Particles by Rotational Stirring
Teshima, Midori
Suzuki, Motoki
Seki, Takahiro
Takeoka, Yukikazu
open access
This is the peer reviewed version of the following article: [M. Teshima, M. Suzuki, T. Seki, Y. Takeoka, ChemNanoMat 2018, 4, 621. ], which has been published in final form at [https://doi.org/10.1002/cnma.201800102]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
spontaneous assembly
structural color
microparticles
granulated powder
When rotational stirring was applied to an electrically neutral aqueous suspension containing negatively charged, monodispersed silica fine particles and a positively charged polyelectrolyte, monodispersed, spherical particles with a size of several hundred micrometers were obtained. Conditions such as the rotational stirring speed, solute concentration, and total suspension amount were examined to clarify the conditions under which the monodispersed, spherical particles can be obtained. Spherical particles with a uniform size were obtained because the solutes create aggregates by electrostatic interactions, and the flow of the suspension from rotational agitation disperses the aggregates. Additionally, the obtained monodispersed, spherical particles contained monodispersed silica fine particles in submicron size aggregates with short‐range order. We found that monodispersed, spherical particles with a vivid structural color could be prepared by incorporating a small amount of a black substance in the spherical particles. Because monodispersed, spherical particles with various colors can be created using silica, polymer, and carbon, which are non‐toxic materials, they may be useful as new, environmentally safe pigments.
ファイル公開:2019-07-04
Wiley
2018-07-04
eng
journal article
AM
http://hdl.handle.net/2237/00028604
https://nagoya.repo.nii.ac.jp/records/26401
https://doi.org/10.1002/cnma.201800102
2199-692X
ChemNanoMat
4
7
621
625
https://nagoya.repo.nii.ac.jp/record/26401/files/manuscript.pdf
application/pdf
1.8 MB
2019-07-04