Enzymatic synthesis of polyphenols from highly phenolic lignin-based polymers (lignophenols).
Peroxidase-catalyzed polymerization of lignin-based macromonomers (lignophenols), lignocatechol and lignocresol, prepared by phenolation of lignin with catechol or p-cresol, was carried out in aqueous organic solvent mixtures. The two lignophenols were polymerized to give cross-linked polymers. The highest yield of polymerization (83%, w/w) was obtained with lignocatechol, and the maximum yield for the polymerization of lignocresol was 55% (w/w). Pyrolysis GC-MS analysis of polymers indicated that the polymerization of lignophenols involved the oxidative coupling of the introduced phenol derivatives.
Xia
Zuyong
Z
Polymer Science Department, Hokkaido University, Kita-ku, Sapporo 060-0180, Japan.
Yoshida
Takashi
T
Funaoka
Masamitsu
M
D002384:Catalysis; D002396:Catechols / Q000737:chemistry; D003407:Creosote / Q000737:chemistry; D003408:Cresols / Q000737:chemistry; D029964:Fagus / Q000737:chemistry; D005419:Flavonoids; D007215:Indophenol / Q000737:chemistry*; D008031:Lignin / Q000031:analogs & derivatives* / Q000737:chemistry*; D046911:Macromolecular Substances; D009195:Peroxidase / Q000737:chemistry*; D010636:Phenols / Q000138:chemical synthesis* / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry
D002396:Catechols; D003408:Cresols; D005419:Flavonoids; D046911:Macromolecular Substances; D010636:Phenols; D011108:Polymers; D007215:Indophenol; D003407:Creosote; D008031:Lignin; D009195:Peroxidase