Premium
A Facile Strategy for Self‐Healing Polyurethanes Containing Multiple Metal–Ligand Bonds
Author(s) -
Wang Zhenhua,
Xie Chuan,
Yu Changjiang,
Fei Guoxia,
Wang Zhanhua,
Xia Hesheng
Publication year - 2018
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700678
Subject(s) - ligand (biochemistry) , metal , polyurethane , materials science , fourier transform infrared spectroscopy , metal ions in aqueous solution , polymer chemistry , photochemistry , chemical engineering , chemistry , combinatorial chemistry , composite material , metallurgy , receptor , biochemistry , engineering
A metal–ligand crosslinked internal self‐healing polyurethane is developed using low‐cost and commercially available compounds. The mechanical, photoluminescent, and self‐healing properties can be governed by incorporating multiple metal–ligand crosslinks with weak and strong coordination bonds and varying the metal ion. In‐situ attenuated total reflectance Fourier transform infrared spectroscopy reveals that the metal–ligand bond is cleaved during the damage process while metal ion is still coordinated with the ligand by stronger metal–pyridyl interaction. The multiple metal–ligand coordination facilitates the crosslinks to be fully reformed during the repairing process, leading to the superior self‐healing property.