文献类型：期刊文献

英文题名：Highly Conductive, Anti-Freezing Hemicellulose-Based Hydrogels Prepared via Deep Eutectic Solvents and Their Applications

作者：Hu, Lisong[1,2,3] Gao, Shishuai[2] Zhao, Lihui[2] Dai, Lili[2] Zhang, Daihui[2,3] Wang, Chunpeng[2] Fang, Xuezhi[1] Chu, Fuxiang[2,3]

第一作者：胡立松;Hu, Lisong

通信作者：Fang, XZ[1];Zhang, DH[2];Zhang, DH[3]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Key Lab Biomass Energy & Mat, Key Lab Forest Chem Engn,SFA,Natl Engn Lab Biomass, Nanjing 210042, Peoples R China;[3]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Peoples R China

年份：2023

卷号：9

期号：9

外文期刊名：GELS

收录：;Scopus(收录号：2-s2.0-85172215352);WOS:【SCI-EXPANDED(收录号:WOS:001075698300001)】；

基金：The authors thank Yaofeng Cao for supplying the raw materials for our experiments.

语种：英文

外文关键词：hemicellulose; deep eutectic solvents (DESs); anti-freezing; conductivity; hydrogels

摘要：Hydrogels containing renewable resources, such as hemicellulose, have received a lot of attention owing to their softness and electrical conductivity which could be applied in soft devices and wearable equipment. However, traditional hemicellulose-based hydrogels generally exhibit poor electrical conductivity and suffer from freezing at lower temperatures owing to the presence of a lot of water. In this study, we dissolved hemicellulose by employing deep eutectic solvents (DESs), which were prepared by mixing choline chloride and imidazole. In addition, hemicellulose-based DES hydrogels were fabricated via photo-initiated reactions of acrylamide and hemicellulose with N, N '-Methylenebisacrylamide as a crosslinking agent. The produced hydrogels demonstrated high electrical conductivity and anti-freezing properties. The conductivity of the hydrogels was 2.13 S/m at room temperature and 1.97 S/m at -29 degrees C. The hydrogel's freezing point was measured by differential scanning calorimetry (DSC) to be -47.78 degrees C. Furthermore, the hemicellulose-based DES hydrogels can function as a dependable and sensitive strain sensor for monitoring a variety of human activities.