Small-angle X-ray scattering analysis of poly(amic acid) dispersed in a liquid matrix to understand the size control of polyimide nanoparticles

Satoshi Kuretani; Kazushige Hori; Tomoyasu Hirai; Noboru Ohta; Kan Hatakeyama-Sato; Teruaki Hayakawa; Yuta Nabae

doi:10.1098/rsos.231995

Royal Society Open Science (Oct 2024)

Small-angle X-ray scattering analysis of poly(amic acid) dispersed in a liquid matrix to understand the size control of polyimide nanoparticles

Satoshi Kuretani,
Kazushige Hori,
Tomoyasu Hirai,
Noboru Ohta,
Kan Hatakeyama-Sato,
Teruaki Hayakawa,
Yuta Nabae

Affiliations

Satoshi Kuretani: Department of Materials Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
Kazushige Hori: Department of Materials Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
Tomoyasu Hirai: Department of Applied Chemistry, Faculty of Engineering and Graduate School of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka, 535-8585, Japan
Noboru Ohta: Japan Synchrotron Radiation Research Institute SPring-8,Hyogo, Sayo 679-5198, Japan
Kan Hatakeyama-Sato: Department of Materials Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
Teruaki Hayakawa: Department of Materials Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
Yuta Nabae: Department of Materials Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-S8-36 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

DOI: https://doi.org/10.1098/rsos.231995
Journal volume & issue: Vol. 11, no. 10

Abstract

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Poly(amic ‍acid) ‍nanoparticles ‍prepared ‍by ‍‍precipitation ‍polymerization with a dispersant were evaluated by small-angle X-ray scattering (SAXS) and field-emission scanning electron microscopy (FE-SEM). The particle size evaluation of poly(amic acid) nanoparticles in the liquid phase by SAXS was performed to gain insight into the size control of poly(amic acid) nanoparticles, and showed good agreement with visual observation by FE-SEM, explaining the effect of the dispersant in obtaining polyimide nanoparticles with small particle size. This indicates that the particle size is maintained without change during the solvent evaporation process. The polyamide nanoparticles controlled by the dispersant effect maintained their size after imidization, and polyimide nanoparticles with a minimum radius of about 60 nm were prepared.

Published in Royal Society Open Science

ISSN: 2054-5703 (Online)
Publisher: The Royal Society
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://royalsocietypublishing.org/journal/rsos

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