Synthesis of colloidal nanocrystals of magnesium layered hydroxide salt and their application as nonwoven fabric materials
Ayaka Amimoto, Yasuaki Tokudome, Akiko Obata, Shuta Ibayashi, Naoki Tarutani, Ryoma Shinchi, Atsushi Nakahira
Abstract
We demonstrate the synthesis of dispersions of magnesium layered-hydroxide-salt (LHS) nanocrystals as promising degradable and potentially biocompatible materials. Sub-10 nm magnesium LHS nanocrystals were successfully synthesized through the alkalization reaction using propylene oxide in the presence of acrylic acid (AA) as an aggregation inhibitor. At the optimized compositions of AA/Mg = 2.0, transparent dispersion of nanometric magnesium LHS formed with intercalating AA. The obtained magnesium LHS nanocrystals were mixed with poly(sodium γ-glutamate) (γ-PGA-Na), and the capability of producing fiber materials was investigated using the electrospinning method. It was found that the interaction between γ-PGA-Na and magnesium LHS nanocrystals enabled the material to be processed into fibrous structures.