Characterization of products from base catalyzed depolymerization of lignins to determine changes in chemical structure(PPT)

摘要

1. Benzyl ether linked dinners can be cleaved with 0.05% NaOH. Diphenyl ether dimers are more resistant. Some biphenyl products observed. 2. Extent of depolymerization appears to be limited by some condensation reactions involving C-C bond formation