Sulfonation of dialdehyde cellulose extracted from sugarcane bagasse for synergistically enhanced water solubility

Satita Thiangtham; James Runt; Hathaikarn Manuspiya

doi:10.1016/j.carbpol.2018.12.080

Sulfonation of dialdehyde cellulose extracted from sugarcane bagasse for synergistically enhanced water solubility

Carbohydr Polym. 2019 Mar 15:208:314-322. doi: 10.1016/j.carbpol.2018.12.080. Epub 2018 Dec 26.

Authors

Satita Thiangtham¹, James Runt², Hathaikarn Manuspiya³

Affiliations

¹ The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, 10330, Thailand.
² Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
³ The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok, 10330, Thailand. Electronic address: hathaikarn.m@chula.ac.th.

PMID: 30658805
DOI: 10.1016/j.carbpol.2018.12.080

Abstract

Sulfonated cellulose (SC) was successfully derived from microcrystalline cellulose (MCC) extracted from sugarcane bagasse, which is a type of agricultural waste. The obtained MCC was first modified by oxidation using sodium periodate in order to cleave the carbon-carbon bonds at the C2 and C3 of the pyranose ring to form 2,3-dialdehyde cellulose. These activated aldehyde groups significantly facilitated the sulfonation carried out using potassium metabisulfite. The sulfonic acid group contents, surface morphology, and water solubility of the obtained products were characterized by titration, field-emission scanning electron microscopy, UV-vis spectroscopy, and zeta potential. High sulfonic acid group content was achieved for the obtained SC samples (i.e., 305-689 μmol/g). The increase in the sulfonic acid group content resulted in the gradual change in the surface morphology and water solubility of the SC samples. The obtained results imply that sugarcane bagasse is a promising raw material for the production of SC with good water solubility.

Keywords: 2,3-Dialdehyde cellulose (DAC); Microcrystalline cellulose (MCC); Modified cellulose; Sugarcane bagasse; Sulfonated cellulose (SC); Water solubility.