OXIDIZED CELLULOSE, METHOD FOR PRODUCING OXIDIZED CELLULOSE AND NANO-CELLULOSE, AND NANO-CELLULOSE DISPERSION

摘要

[Problem] To provide an oxidized cellulose with excellent defibrillation that does not leave N-oxyl compounds such as TEMPO, etc. within nano-cellulose, and capable of producing nano-cellulose by using an efficient method that does not require excessive mechanical defibrillation.[Solution] This oxidized cellulose has a plurality of peaks in a range of 165-185 ppm in a solid nuclear magnetic resonance (NMR) spectrum for ¹³C of oxidized cellulose, and the oxidized cellulose may be produced by oxidizing a cellulose-based raw material while adjusting the pH to be in a range of 5.0-14.0 using a hypochlorous acid or salt thereof having an effective chloride concentration of 6-14 mass%.