文献类型：期刊文献

英文题名：Lignin-Based Macromolecular Photoinitiator for Non-Migration, Self-Adhesive, and Water-Resistant Eutectogels toward Underwater Reliable Communication

作者：Luo, Tong[1] Qi, Ji[1] Yu, Juan[2] Wang, Chunpeng[1,2] Chu, Fuxiang[1,2] Wang, Jifu[1,2]

第一作者：Luo, Tong

机构：[1] Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry [CAF], Nanjing, 210042, China; [2] Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry University, Nanjing, 210037, China

年份：2025

卷号：35

期号：5

外文期刊名：Advanced Functional Materials

收录：EI(收录号：20244017137256);Scopus(收录号：2-s2.0-85205236160)

语种：英文

外文关键词：Elastomers - Energy efficiency - Marine communication - Underwater photography

摘要：Hydrophobic conductive gels have attracted much attention in underwater sensing as the soft robots and wearable sensors. Among the various methods for preparing conductive gels, UV-initiated polymerization shows advantages of rapid curing and significant energy savings. However, traditional commonly used photoinitiators in UV-initiated polymerization often migrate or diffuse within conductive gels, especially with prolonged use or underwater, posing potential environmental and health risks. Herein, a novel lignin-based macromolecular photoinitiator (L-BF) is first designed by incorporating benzoylformate into the lignin backbone, demonstrating excellent UV absorption, high radical initiation efficiency, and hydrophobicity. Subsequently, hydrophobic eutectogels (HEG) are prepared via UV-initiated polymerization using L-BF as photoinitiator. The HEG shows excellent mechanical properties (toughness of 5.67?MJ?m?3 and strain of 941%) and scarcely L-BF migration underwater. Moreover, the hydrophobic network of L-BF endowed HEG with hydrophobicity (water contact angle exceeds 110°; swelling ratio is ? 2024 Wiley-VCH GmbH.