首页|Alcohol solvent effect on the self-assembly behaviors of lignin oligomers

Alcohol solvent effect on the self-assembly behaviors of lignin oligomers

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The interactions between lignin oligomers and solvents determine the behaviors of lignin oligomers self-assembling into uniform lignin nanoparticles(LNPs).Herein,several alcohol solvents,which readily interact with the lignin oligomers,were adopted to study their effects during solvent shifting process for LNPs'production.The lignin oligomers with widely distributed molecular weight and abundant guaiacyl units were extracted from wood waste(mainly consists of pine wood),exerting outstanding self-assembly capability.Uniform and spherical LNPs were generated in H2O-n-propanol cosolvent,whereas irregular LNPs were obtained in H2O-methanol cosolvent.The unsatisfactory self-assembly performance of the lignin oligomers in H2O-methanol cosolvent could be attributed to two aspects.On one hand,for the initial dissolution state,the distinguishing Hansen solubility parameter and polarity between methanol solvent and lignin oligomers resulted in the poor dispersion of the lignin oligomers.On the other hand,strong hydrogen bonds between methanol solvent and lignin oligomers during solvent shifting process,hindered the interactions among the lignin oligomers for self-assembly.

Lignin oligomersAlcohol solventSelf-assemblyLNPsSolvent effects

Ya Ma、Zhicheng Jiang、Yafei Luo、Xingjie Guo、Xudong Liu、Yiping Luo、Bi Shi

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College of Biomass Science and Engineering,Sichuan University,Chengdu,610065,China

National Engineering Research Center of Clean Technology in Leather Industry,Sichuan University,Chengdu,610065,China

College of Pharmacy(International Academy of Targeted Therapeutics and Innovation),Chongqing University of Arts and Sciences,Chongqing,402160,China

State Key Laboratory of Utilization of Woody Oil Resource,Hunan Academy of Forestry,Changsha,410004,China

CAS Key Laboratory of Environmental and Applied Microbiology,Environmental Microbiology Key Laboratory of Sichuan Province,Chengdu Institute of Biology,Chinese Academy of Sciences,Chengdu,610041,China

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国家自然科学基金中国博士后科学基金

220782112022M721115

2024

绿色能源与环境(英文)

绿色能源与环境(英文)

CSTPCD
ISSN:
年,卷(期):2024.9(4)
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