Poly(vinyl alcohol)–Tannic Acid Hydrogels with Excellent Mechanical Properties and Shape Memory Behaviors

• Published in: ACS applied materials & interfaces Vol. 8; no. 40; pp. 27199 - 27206
• Main Authors: Chen, Ya-Nan, Peng, Lufang, Liu, Tianqi, Wang, Yaxin, Shi, Shengjie, Wang, Huiliang
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 12.10.2016
• Subjects: alcohols; ambient temperature; coagulation; crosslinking; gelation; hydrogels; hydrogen bonding; mechanical properties; polyvinyl alcohol; tannins; PVA; tannic acid; hydrogels; shape memory; mechanical properties

Shape memory hydrogels have promising applications in a wide variety of fields. Here we report the facile fabrication of a novel type of shape memory hydrogels physically cross-linked with both stronger and weaker hydrogen bonding (H-bonding). Strong multiple H-bonding formed between poly­(vinyl alc...