FT-IR CHARACTERIZATION OF CELLULOSE CRYSTALLINITY FROM RAW BAST FIBERS
Keywords:bast fibers, native cellulose, infrared crystallinity, hydrogen bond intensity
This paper presents the characterization of native cellulose from the jute, hemp, and flax raw fibers by
infrared evaluation of crystallinity ratio (Total Crystallinity Index and Lateral Order Index) and Hydrogen Bond
Intensity. The results showed that cellulose from jute fiber has a higher degree of crystallinity while that of hemp fibers
has a more ordered structure, with more cellulose chains in a highly organized form. In the flax fibers, the cellulose
chains are composed of a larger number of amorphous domains. Hydrogen bond intensity values were influenced by
both the ordered cellulose structure and the lignin content of the fibers.