Cellulose oxidation by Laccase-TEMPO treatments

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• 作者：Elisabet Quintana ; ^{elisabet.quintana@etp.upc.edu} ; M. Blanca Roncero ; Teresa Vidal ; Cristina Valls ; ^{cristina.valls@upc.edu}
• 关键词：2 ; 2 ; 6 ; 6-tetramethyl-1-piperidinyloxy (TEMPO) (PubChem CID ; 2724126) ; 2 ; 2-azinobis(3-thylbenzothiazoline-6-sulfonic acid) (ABTS) (PubChem CID ; 6871216)
• 刊名：Carbohydrate Polymers
• 出版年：2017
• 出版时间：10 February 2017
• 年：2017
• 卷：157
• 期：Complete
• 页码：1488-1495
• 全文大小：776 K
• 卷排序：157

文摘

Laccase-TEMPO treatments provided carbonyl and carboxyl groups on dissolving pulp. Laccase-TEMPO treatment conducted in presence of oxygen developed wet strength. A pre-refining step led to hemiacetal covalent linkages and improved wet strength. Higher wet-zero span strength correlated highly with presence of hemiacetal linkages. Laccase-TEMPO caused degradation but hemiacetal linkages hindered Fock solubility.