کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10604658 | 982530 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characterization of cellulose phosphate from oil palm empty fruit bunches microcrystalline cellulose
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Phosphorylated cellulose is a biopolymer with potential use in biomaterials. The typical cellulosic raw materials used in its derivation are often wood-based. Nonetheless, cellulose can also be extracted and is readily available in large quantities from non-wood alternatives. One such viable source is empty fruit bunch fiber (OPEFB), a by-product of the oil palm industry. In this work, OPEFB cellulose phosphate (OPEFB-CP) gel was successfully synthesized from OPEFB microcrystalline cellulose using the H3PO4/P2O5/Et3PO4/hexanol procedure. The characterization of the OPEFB-CP was performed using EDX analysis, FTIR and CP/MAS 13C- and 31P-NMR spectroscopic analyses and provided clear evidence of successful phosphorylation. Through CP/MAS 13C NMR, the distribution of the phosphate moiety among the three OH groups in the glucose residues was shown to be preferably located at the C6 position, resulting in a 53% reduction in crystallinity. Thermal stability of the OPEFB-MCC decreased upon phosphorylation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 84, Issue 1, 11 February 2011, Pages 262-267
Journal: Carbohydrate Polymers - Volume 84, Issue 1, 11 February 2011, Pages 262-267
نویسندگان
W.D. Wanrosli, R. Rohaizu, A. Ghazali,