High-strength PAMPS-PAM-TA hydrogel with adhesion and preparation method of high-strength PAMPS-PAM-TA hydrogel

• Main Authors: JIA ZHANGTING, GAO DANGGE, LYU BIN, FU YATONG, REN JINGJING
• Format: Patent
• Language: Chinese; English
• Published: 12.08.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to a high-strength PAMPS-PAM-TA hydrogel with adhesion and a preparation method of the high-strength PAMPS-PAM-TA hydrogel. According to the preparation method, poly 2-acrylamide-2-methylpropanesulfonic acid is adopted as a first network, polyacrylamide is adopted as a second network, and tannic acid is adopted as a third network, so that the poly 2-acrylamide-2-methylpropanesulfonic acid-polyacrylamide-tannic acid hydrogel with high strength and adhesion is prepared. The poly-2-acrylamide-2-methylpropanesulfonic acid-polyacrylamide dual-network hydrogel has the defect that the adhesion property is relatively poor. Therefore, tannic acid is introduced, so that the tannic acid can be adhered to base materials such as glass and metal through phenolic hydroxyl groups contained in the tannic acid; in addition, the mechanical property of the hydrogel can be improved through pi-pi interaction, hydrogen bonds and the like formed in the tannic acid. The research provides a new thought for synthe