Preparation and properties of vanillin-based polyurethane materials for body temperature self-healing - Fu, Mingfu; Hu, Jiangfeng; Zhang, Xiaochun; Wang, Chaozhang; Liu, Yang; Niu, Jianzhuang; Sun, Yinglu; Yao, Dengzun; Jing, Xianghai (Frontiers in Materials, 2024)