Open AccessCharacterization of asymmetric membranes of cellulose acetate from recycling of residue corn stover for use in ultrafiltration
Author(s) -
Elaine Angélica Mundim Ribeiro,
Guimes Rodrigues Filho,
Júlia Graciele Vieira,
Raquel Sousa,
Rosana Maria Nascimento de Assunção,
Carla da Silva Meireles,
Jocelei Duarte,
Mára Zeni
Publication year - 2014
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.5935/0100-4042.20140070
Subject(s) - corn stover , ultrafiltration (renal) , residue (chemistry) , cellulose , membrane , stover , chemistry , cellulose acetate , cellulosic ethanol , pulp and paper industry , chromatography , organic chemistry , agronomy , biochemistry , engineering , biology , hydrolysis , crop
Cellulose acetates (CA) with different degrees of acetylation were synthesized from cellulose extracted from corn stover. Membranes were prepared for the ultrafiltration process with pure polymers and blend form of CA utilizing a dioxane/acetone system. The membranes were characterized according to their transport properties. The blend form materials presented the best results for application in ultrafiltration experiments. M-TAC/DAC (corn stover triacetate and diacetate) and M-TAC/DAC-Rho (corn stover triacetate and Rhodia diacetate) presented rejection to egg albumin protein of 87.39% and 80.50%, respectively. Thus, MWCO of 45 kDa was determined for these materials
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