Regenerated cellulose fibers functionalized with lignin-derived boron-containing phenolic networks for durable flame retardancy and UV protection - Wei Tan; Jieyun Zhao; Lei Tan; Yin Tian; Guixiang Song; Ying Chang; Lu Bai; Ping Li; Yuanlin Ren; Xiaohui Liu (Carbohydrate Polymers, 2026)