木质素
乙二醇
化学
中子散射
水溶液
化学工程
小角中子散射
回转半径
纳米颗粒
分子
有机化学
散射
聚合物
物理
光学
工程类
作者
Xin Zhang,Jinxu Zhang,Hua Yang,Chunyong He,Yubin Ke,Seema Singh,Gang Cheng
出处
期刊:Chemsuschem
[Wiley]
日期:2022-08-29
卷期号:15 (19)
被引量:2
标识
DOI:10.1002/cssc.202201230
摘要
Lignin nanoparticles (LNPs) are usually produced from lignin solution through supersaturation. The structure of the lignin in solution is still poorly understood due to structural variability of isolated lignins. Here, lignins were extracted from different plants to establish a general pattern of their structure in several lignin solvents. Lignin molecules (lignin subunits) and larger aggregates were observed in dimethyl sulfoxide (DMSO), ethylene glycol (EG) and 0.1 N NaOD solutions by small-angle neutron scattering (SANS). It was proposed that the aggregates were composed of lignin subunits with a higher molecular weight and a higher ratio of the aliphatic to phenolic hydroxyl groups. The size, shape, and compactness are important factors that affect the uses of the LNPs, which were obtained from the SANS data for the first time. A discrepancy in the radius between SANS and DLS was discovered, pointing to a large hydration shell around the LNPs in aqueous solutions. The cytotoxicity of the corncob lignin, kraft lignin, and their LNPs were measured and compared.
科研通智能强力驱动
Strongly Powered by AbleSci AI