Study of Structure of Industrial Acid Hydrolysis Lignin, Oxidized in the H2O2-H2SO4 System. (3rd July 2016)

• Record Type: Journal Article
• Authors: Evstigneyev, Edward I.; Yuzikhin, Oleg S.; Gurinov, Andrey A.; Ivanov, Alexandr Yu.; Artamonova, Tatiana O.; Khodorkovskiy, Mikhail A.; Bessonova, Elena A.; Vasilyev, Aleksander V.
• Is Part Of: Journal of wood chemistry and technology. Volume 36:Number 4(2016)
• Page Start: 259
• Page End: 269
• Publication Date: 2016-07-03
• Subjects: Acid hydrolysis lignin -- oxidation -- NMR -- MALDI-MS -- MS(ESI); Wood -- Chemistry -- Periodicals; Wood; Wood -- Chemistry; Periodicals; 674.13
• DOI: 10.1080/02773813.2015.1137945
• Languages: English
• ISSNs: 0277-3813

Abstract

Abstract : Products of oxidation of industrial acid hydrolysis lignin in the H2 O2 -H2 SO4 system were studied using 13 C NMR (in solution and solid state), MALDI-MS, and MS(ESI) techniques. Oxidation of hydrolysis lignin leads to the opening of aromatic rings of lignin, yielding carboxylic groups. Alkyl aryl ether linkages (β-O-4-bonds) between lignin phenyl propane units are not significantly affected by the oxidation. The structure of oxidized hydrolysis lignin is proposed. The basic structural unit of oxidized hydrolysis lignin is a muconic acid derivative.