Abstract
Cellulose from Oil Palm Empty fruit bunch (OPEFB) fiber was hydrothermally treated by using autoclave which is immersed in an oil bath at 160 °C for 6 h. OPEFB cellulose was mixed with aqueous urea and stirred for 30 min to obtain a homogenous mixture before transferred into the autoclave. The effect of different cellulose to urea mass ratio (1:4, 1:6 and 1:8) on the molecular weight, degree of polymerization and solubility of the treated cellulose dissolved in NaOH and urea solvent system was studied. The result shows that the solubility of cellulose from OPEFB fiber increased while the molecular weight of cellulose decreased due to the pretreatment done on the OPEFB fiber.
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