Synthesis and Characterization of Electronic Ink Particles for Electronic Paper by Polymerization Method

Abstract

1-Phenyl-3-naphthyl-5-((dimethylamino)phenyl)-2-pyrazoline nanoparticles with sizes ranging from tens to hundreds of nanometers were prepared by the reprecipitation method and polymerized with methyl methacrylate and ethylene glycol dimethacrylate using surfactants. The electronic ink particles of pyrazoline organic nanoparticles were successfully prepared by dispersion polymerization in aqueous alcohol medium for full color electronic paper, which is expected to substitute for the future display. In order to improve their mobility, the surfactant was added as a charge control additive. The electrophoretic mobility of the resulting electronic inks was 3.059 × 10⁻⁴ cm²/V · s in the presence of 3 wt% surfactants.

Keywords:

• e-paper
• organic nanoparticles
• pyrazoline
• reprecipitation method

Acknowledgments

This work was financially supported by Brain Korea 21.