An approach for in situ qualitative and quantitative analysis of moisture adsorption in nanogram-scaled lignin by using micro-FTIR spectroscopy and partial least squares regression.
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31500475]; Natural Science Foundation of Hunan Province, ChinaNatural Science Foundation of Hunan Province [2019JJ50981]; Research Foundation of Education Bureau of Hunan Province, China [18A166]; College Student's Research Learning and Innovative Experiment Project [85]
机构署名：
本校为第一且通讯机构
院系归属：
材料科学与工程学院
理学院
摘要：
Moisture sorption has a great impact on the mechanical properties of lignin. To better characterize the moisture sorption of lignin, an approach for in situ qualitative and quantitative analysis of moisture adsorption in nanogram-scaled lignin by using micro-FTIR spectroscopy and partial least squares regression is introduced in this study. Spectra of nanogram-scaled lignin were collected within the relative humidity (RH) of 0%-92%. A qualitative analysis of these measured spectra confirmed the effective water sorption sites and determined spectral ranges related to moisture adsorption. Using ...
