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Title: Preparation of Highly Reactive Lignin by Ozone Oxidation: Application as Surfactants with Antioxidant and Anti-UV Properties

Abstract

Enhancement of lignin reactivity plays a critical role in the chemical modification of lignin. In the current study, a simple, green, and effective method, of ozone oxidation, was developed to improve the reactivity of enzymatic lignin through the formation of carboxyl groups. The resultant ozonate of enzymatic lignin (OzEL) indicated a higher reactivity of esterification. We report the ozonated enzymatic lignin grafted to polyethylene glycol (OzEL-PEGs) afforded satisfactory water solubility, good surface activity, and good emulsifying properties. The remaining phenolic hydroxyl groups in OzEL-PEGs also maintain excellent antioxidant and UV absorbing properties. This ozone oxidation process provides an effective and green method for the preparation of highly reactive lignin, which can be applied in the manufacture of a multifunctional lignin polymer.

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [4]; ORCiD logo [5]
  1. Beijing Univ. of Chemical Technology (China); Beijing Univ. of Chemical Technology, Xiamen (China)
  2. Washington State Univ., Pullman, WA (United States)
  3. Beijing Univ. of Chemical Technology (China); Beijing Univ. of Chemical Technology, Xiamen (China); South China Univ. of Technology (SCUT), Guangzhou (China)
  4. Rensselaer Polytechnic Inst., Troy, NY (United States)
  5. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE; National Key Research and Development Program of China; State Key Laboratory of Pulp and Paper Engineering
OSTI Identifier:
1649353
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
ACS Sustainable Chemistry & Engineering
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2168-0485
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Lignin; Ozone; Oxidation; Carboxyl; Polyethylene glycol

Citation Formats

Shi, Chen, Zhang, Shuai, Wang, Wenya, Linhardt, Robert J., and Ragauskas, Arthur J.. Preparation of Highly Reactive Lignin by Ozone Oxidation: Application as Surfactants with Antioxidant and Anti-UV Properties. United States: N. p., 2019. Web. https://doi.org/10.1021/acssuschemeng.9b05498.
Shi, Chen, Zhang, Shuai, Wang, Wenya, Linhardt, Robert J., & Ragauskas, Arthur J.. Preparation of Highly Reactive Lignin by Ozone Oxidation: Application as Surfactants with Antioxidant and Anti-UV Properties. United States. https://doi.org/10.1021/acssuschemeng.9b05498
Shi, Chen, Zhang, Shuai, Wang, Wenya, Linhardt, Robert J., and Ragauskas, Arthur J.. Thu . "Preparation of Highly Reactive Lignin by Ozone Oxidation: Application as Surfactants with Antioxidant and Anti-UV Properties". United States. https://doi.org/10.1021/acssuschemeng.9b05498. https://www.osti.gov/servlets/purl/1649353.
@article{osti_1649353,
title = {Preparation of Highly Reactive Lignin by Ozone Oxidation: Application as Surfactants with Antioxidant and Anti-UV Properties},
author = {Shi, Chen and Zhang, Shuai and Wang, Wenya and Linhardt, Robert J. and Ragauskas, Arthur J.},
abstractNote = {Enhancement of lignin reactivity plays a critical role in the chemical modification of lignin. In the current study, a simple, green, and effective method, of ozone oxidation, was developed to improve the reactivity of enzymatic lignin through the formation of carboxyl groups. The resultant ozonate of enzymatic lignin (OzEL) indicated a higher reactivity of esterification. We report the ozonated enzymatic lignin grafted to polyethylene glycol (OzEL-PEGs) afforded satisfactory water solubility, good surface activity, and good emulsifying properties. The remaining phenolic hydroxyl groups in OzEL-PEGs also maintain excellent antioxidant and UV absorbing properties. This ozone oxidation process provides an effective and green method for the preparation of highly reactive lignin, which can be applied in the manufacture of a multifunctional lignin polymer.},
doi = {10.1021/acssuschemeng.9b05498},
journal = {ACS Sustainable Chemistry & Engineering},
number = 1,
volume = 8,
place = {United States},
year = {2019},
month = {12}
}

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