Effect of tree age on the cellulose structure of Nalita wood (Trema orientalis)

• Published in: Wood science and technology Vol. 39; no. 5; pp. 367 - 373
• Main Authors: Jahan, M.S, Mun, S.P
• Format: Journal Article
• Language: English
• Published: Berlin Springer 01.08.2005; Springer Nature B.V
• Subjects: Age; Age composition; Applied sciences; Cellulose; Cellulose and derivatives; Crystal structure; Crystallinity; crystallinity index; crystallite size; Crystals; Cytology; Degree of polymerization; Exact sciences and technology; Fourier transforms; Infrared spectroscopy; Natural polymers; Physicochemistry of polymers; Polymer industry, paints, wood; Polymerization; Properties and testing; Spectrum analysis; tree age; Unit cell; Wood; Wood. Paper. Non wovens; X-ray diffraction; Asia; Bangladesh; Viscosity; Lignin; Hemicellulose; Chemical analysis; Wood; Cellulose; Crystallinity; Degree of polymerization; Experimental study; Monoclinic lattices; X ray diffraction; Trema orientalis; Fourier transform spectra; Infrared spectrum
• ISSN: 0043-7719; 1432-5225
• DOI: 10.1007/s00226-005-0291-7

The change of crystalline structure of Nalita cellulose with tree age has been studied using X-ray diffraction and FT-IR spectroscopy. The proportion of crystallinity and crystal size were increased with tree age. FT-IR spectroscopy showed that the Nalita cellulose was a monoclinic unit cell structure (Iβ). The proportion of crystallinity and crystal size of the 30-month-old Nalita wood was higher as compared to aspen wood. The degree of polymerization (DP) of Nalita cellulose of different ages has also been studied. The DP of cellulose increased with tree age. The DP of Nalita cellulose was lower than that of aspen cellulose. The percentage of glucose in Nalita wood increased with tree age.