Physicochemical characterisation of sugar cane bagasse lignin oxidized by hydrogen peroxide - Université de Lorraine Access content directly
Journal Articles Polymer Degradation and Stability Year : 2010

Physicochemical characterisation of sugar cane bagasse lignin oxidized by hydrogen peroxide

Abstract

The oxidation of soda lignin extracted from sugar cane bagasse was studied in acid medium. Soda lignin was precipitated from black liquor by adding (36N) sulphuric acid until the pH of the resultant solution was close to 2. The resultant, dried, material was oxidized using hydrogen peroxide. Soda lignin oxidized at different times was investigated by CHNS and EDX chemical analysis, GPC, FTIR and solid state CP-MAS 13C NMR spectroscopy. Oxidation increased the amount of carboxylic groups, while that of associated carbohydrates decreased. In addition, self-condensation with increase of molecular weight was observed.

Dates and versions

hal-02932395 , version 1 (07-09-2020)

Identifiers

Cite

A. Mancera, V. Fierro, A. Pizzi, S. Dumarçay, P. Gerardin, et al.. Physicochemical characterisation of sugar cane bagasse lignin oxidized by hydrogen peroxide. Polymer Degradation and Stability, 2010, 95 (4), pp.470-476. ⟨10.1016/j.polymdegradstab.2010.01.012⟩. ⟨hal-02932395⟩
45 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More