Synthesis and Characterization of Cellulose Triacetate Obtained from Date Palm (Phoenix dactylifera L.) Trunk Mesh-Derived Cellulose

Molecules

Niyaz Ahamad Madhar¹  Hamid M. Shaikh²  Anesh Manjaly Poulose²  Saeed M. Al-Zahrani²  Saleh Husam Aldeligan²  Abdullah Alhamidi²  Faisal S. Alsubaie²  Arfat Anis² 

[1] Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;SABIC Polymer Research Centre, Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia;

关键词: cellulose;    cellulose triacetate;    date palm mesh;    acetylation;    degree of substitution;    thermal stability;   

DOI  :  10.3390/molecules27041434

来源: DOAJ

【 摘 要 】

Cellulosic polysaccharides have increasingly been recognized as a viable substitute for the depleting petro-based feedstock due to numerous modification options for obtaining a plethora of bio-based materials. In this study, cellulose triacetate was synthesized from pure cellulose obtained from the waste lignocellulosic part of date palm (Phoenix dactylifera L.). To achieve a degree of substitution (DS) of the hydroxyl group of 2.9, a heterogeneous acetylation reaction was carried out with acetic anhydride as an acetyl donor. The obtained cellulose ester was compared with a commercially available derivative and characterized using various analytical methods. This cellulose triacetate contains approximately 43.9% acetyl and has a molecular weight of 205,102 g·mol⁻¹. The maximum thermal decomposition temperature of acetate was found to be 380 °C, similar to that of a reference sample. Thus, the synthesized ester derivate can be suitable for fabricating biodegradable and “all cellulose” biocomposite systems.

【 授权许可】

Unknown