l-Lysine-based supramolecular hydrogels containing various inorganic ions.
The preparation of supramolecular hydrogels containing various inorganic acids and salts using L-lysine-based hydrogelators is conducted and their thermal stabilities, gel strengths, FT-IR spectra, and electron micrographs are measured. These hydrogelators can form supramolecular hydrogels over a wide pH range and contain inorganic acids and salts. The supramolecular hydrogels based on ester-type hydrogelators have good thermal stabilities (high Tgel), while the hydrogelator with a carboxyl group forms a thermally sensitive gel with high mechanical strength. Furthermore, the gelation mechanism is discussed using FT-IR spectroscopy and TEM observations.
Suzuki
Masahiro
M
Graduate School of Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan. msuzuki@giptc.shinshu-u.ac.jp
Yumoto
Mariko
M
Shirai
Hirofusa
H
Hanabusa
Kenji
K