| abstract |
A method of catalytically oxidizing cellulose using a heterocyclic nitroxyl radical as a catalyst, a main oxidant acting as an oxygen source, and an activator of the heterocyclic nitroxyl radical, comprising hypochlorite Cellulose oxidation to oxidize cellulose using pre-activation step using heterocyclic nitroxyl radical as activation catalyst, and after the pre-activation step, using activation catalyst and hypochlorite as main oxidant Including the steps. In the cellulose oxidation process, the fibrous starting material is subjected to oxidation to oxidize the cellulose, after which the oxidized fibrous raw material is broken down into nanofibrillated cellulose (NFC). |