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Enriching Heteroele...
Enriching Heteroelements in Lignin as Lubricating Additives for Bioionic Liquids
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- Mu, Liwen (author)
- Luleå tekniska universitet,Maskinelement,Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron
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- Shi, Yijun (author)
- Luleå tekniska universitet,Maskinelement,State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, China
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- Guo, Xiaojing (author)
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences
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- Wu, Jian (author)
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology
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- Ji, Tuo (author)
- Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron
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- Chen, Long (author)
- Department of Chemical and Biomolecular Engineering, The University of Akron, Intelligent Composites Laboratory, Department of Chemical and Biomolecular Engineering, The University of Akron
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- Feng, Xin (author)
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing University of Chemical Technology, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology
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- Lu, Xiaohua (author)
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, College of Chemistry and Chemical Engineering, Nanjing University of Technology
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- Hua, Jing (author)
- Luleå tekniska universitet,Maskinelement
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- Zhu, Jiahua (author)
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology
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(creator_code:org_t)
- 2016-06-08
- 2016
- English.
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In: ACS Sustainable Chemistry and Engineering. - : American Chemical Society (ACS). - 2168-0485. ; 4:7, s. 3877-3887
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Depolymerization and modification of lignin have been achieved simultaneously in a one-pot chemical reaction. Two heteroelement-rich modifiers, imidazol-1-yl phosphonic dichloride and 1H-1,2,4-triazol-1-yl phosphonic dichloride, were selected to react with lignin in this work. The modified lignin (m-lignin) is demonstrated as an effective lubricating additive for [choline][amino acid] ([CH][AA]) bioionic liquids. Different characterization techniques have been utilized to study the lignin depolymerization, reaction between lignin and modifiers and m-lignin/[CH][AA] interaction. The effect of the molecular structure of the modifiers on the rheological and tribological properties of m-lignin/[CH][AA] lubricants was systematically investigated. Density function theory is used to calculate the electronic structure of lignin, m-lignin, and [CH][AA]. The atomic natural charge analysis revealed the most negative charge on nitrogen bonded to a phosphorus atom and the strongest capability of forming hydrogen bonding with [CH][AA]. The introduced nitrogen and phosphorus elements not only increase the hydrogen bonding density in m-lignin/[CH][AA] but also enhance the polarity of the m-lignin, both of which facilitate a strong adhesion of lubricant on a metal surface and thus promote lubrication. A larger fraction of heteroatom groups in m-lignin contributes to a better lubrication property of these lubricants
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Tribologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Tribology (hsv//eng)
Keyword
- Depolymerization
- Heteroelement
- Hydrogen bonding
- Lignin
- Lubrication
- Machine Elements
- Maskinelement
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Mu, Liwen
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Shi, Yijun
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Guo, Xiaojing
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Wu, Jian
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Ji, Tuo
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Chen, Long
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Feng, Xin
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Lu, Xiaohua
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Hua, Jing
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Zhu, Jiahua
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Mechanical Engin ...
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and Tribology
- Articles in the publication
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ACS Sustainable ...
- By the university
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Luleå University of Technology