Data on making uniform lignin building blocks via in-situ real-time monitoring hydroxyethyl modification
Depending on the detected nuclei (1H, 13C, and 31P), the nuclear magnetic resonance (NMR) spectra reflected lignin's structural features, including but not limited to the chemical linkages, repeating units, and hydroxyl groups. The original softwood kraft lignin (Amallin, WestFraser Corp.) and their hydroxyethyl modified lignin derivatives were analyzed using a 300 MHz NMR (Bruker Corp.). In the repository, the NMR spectrum were attached in a formate.zip file. They can be processed by the Topspin software (Available in the Bruker Website: https://www.bruker.com/service/support-upgrades/software-downloads/nmr/free-topspin-processing/nmr-topspin-license-for-academia.html). The gel permeation chromatography (GPC) traces were also attached in this repository. Three types of detectors, including multi-angle light scattering, intrinsic viscosity, and differential refractive index were adopted to analyze the fractionated lignin resources. The ASTRA software from Wyatt Technology can process the obtained traces to obtain the molecular weight of lignin resources. These data are related to the data in brief manuscript "Data on making uniform lignin building blocks via in-situ real-time monitoring hydroxyethyl modification".
Steps to reproduce
In order to reproduce the NMR spectrum and GPC traces, TOPSPIN and ASTRA software are necessary to open the data file. NMR spectra were processed by Topspin software (Bruker), including the Fourier transform of FID signals, baseline change, and calibration.