简历详情

Fractionation of alkali lignin by organic solvents for biodegradable microsphere through self-assembly

期刊: Bioresource Technology  2019
作者: Haisong Wang,Qingda An,Shangru Zhai,Yi Cheng,Jie Lu,Ce Gao,Qiang Li,Pan Jiang
DOI:10.1016/j.biortech.2019.121640

Study on the Effect of 1-Butanol Soluble Lignin on Temperature-Sensitive Gel

A protocol for the fractionation of lignin with 1-butanol as solvent has been proposed in order to improve the utilization of industry alkali lignin. 1-butanol soluble lignin (BSL) was used as a building block for temperature-sensitive hydrogel with N-isopropylacrylamide (NIPAAm) through graft polymerization. The result shows that 1-butanol fractionation is an effective method to improve the molecular weight homogeneity of lignin (PDI, 2.5 to 1.83) and increase the hydroxyl group content (0.585–1.793 mmol/g). The incorporation of BSL into the temperature-sensitive hydrogel can enhance the thermal stability and increase the hydrophobicity of the gel, which leads to a decrease in lower critical solution temperature (LCST). In addition, the compression strength, swelling ratio, and pore size of the gel can be adjusted by the dosage of lignin. This stimuli-responsive gel, with an LCST around 32 °C, is expected to be applied in the agricultural field as a pesticide carrier by stimulating release and absorption properties based on the change in natural environmental temperature.

期刊: Polymers  2018
作者: Haisong Wang,Jie Lu,Sheng Yu,Yi Cheng,Pan Jiang
DOI:10.3390/polym10101109

Preparation and characterization of thermo-sensitive gel with phenolated alkali lignin

期刊: Scientific Reports  2018
作者: Haisong Wang,Jinghui Zhou,Jie Lu,Haiming Li,Sheng Yu,Xueru Sheng,Pan Jiang
DOI:10.1038/s41598-018-32672-z