Química Nova | |
Characterization of asymmetric membranes of cellulose acetate from recycling of residue corn stover for use in ultrafiltration | |
Universidade Federal de Uberlândia, Uberlândia, Brasil1  Zeni, Mara1  Duarte, Jocelei1  Universidade Federal do Espírito Santo, São Mateus, Brasil1  Sousa, Raquel Maria Ferreira de1  Universidade Federal de Uberlândia, Ituiutaba, Brasil1  Universidade de Caxias do Sul, Caxias do Sul, Brasil1  Vieira, Júlia Graciele1  Assunção, Rosana Maria Nascimento de1  Ribeiro, Elaine Angélica Mundim1  Meireles, Carla da Silva1  Rodrigues Filho, Guimes1  | |
关键词: corn stover; cellulose acetate; ultrafiltration.; | |
DOI : 10.5935/0100-4042.20140070 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
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.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912050596231ZK.pdf | 891KB | download |