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Thixotropic Hydrogel Formation in Various Aqueous Solutions through Self‐Assembly of an Amphiphilic Tris‐Urea
Author(s) -
Higashi Daisuke,
Yoshida Masaru,
Yamanaka Masamichi
Publication year - 2013
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201300779
Subject(s) - thixotropy , tris , urea , amphiphile , aqueous solution , chemical engineering , self healing hydrogels , chemistry , materials science , polymer chemistry , polymer science , organic chemistry , polymer , biochemistry , copolymer , engineering
Transition stress management : The amphiphilic tris‐urea 1 was designed and synthesized as a low‐molecular‐weight gelator. The minimum gelation concentration of 1 is 1.9 m M . The hydrogel is thixotropic, and shows a reversible gel–sol phase transition in response to mechanostress. The amphiphilic tris‐urea 1 forms gels with various aqueous solutions, such as buffers and saturated NaCl, 8 M HCl, and 7 M KOH solutions. These hydrogels retain their thixotropic nature.