23 Jul PH responsive self-repairing PVA-metal complexing hydrogel
Abstract
The invention discloses pH responsive self-repairing PVA-metal complexing hydrogel and belongs to the field of functional polymer materials. PVA is used as a main raw material, bio-based monomer 3, 4-DOPA is selected and used as a functional monomer, and a PVA polymer decorated with DOPA, namely PVA-DOPA is prepared through an esterification reaction; by the utilization of the complexing action of catechol and metal ions in DOPA, the pH responsive self-repairing hydrogel is prepared. Storage modulus, colors and the like of the hydrogel can all be achieved by adjusting pH. The prepared noncovalent bonding cross-linked polymer metal plural gel has pH responsiveness, self-repairing performance and good mechanical strength, and can be applied to the fields of biological medicine, tissue engineering and the like.
Year: 2014
Country: CN
Doc No: 104059234