In-situ polymerization of lignocelluloses of autohydrolysis process with acrylamide

作     者：Haosong Zhao Weijue Gao Pedram Fatehi Haosong Zhao;Weijue Gao;Pedram Fatehi

作者机构：Biorefining Research Institute and Chemical Engineering DepartmentLakehead UniversityThunder Bay P7B 5E1Canada 

出 版 物：《生物质资源与工程(英文)》 (Journal of Bioresources and Bioproducts)

年 卷 期：2023年第8卷第3期

页      面：235-245页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：Northern Ontario Heritage Fund Corporation, NOHFC Natural Sciences and Engineering Research Council of Canada, NSERC Canada Research Chairs Canada Foundation for Innovation 

主　　题：Polymerization Hydrolysate Lignocellulose Acrylamide Biorefining 

摘      要：In the present study,the hydrolysates generated via autohydrolysis of spruce wood chips were di-rectly used as feedstock for producing *** in-situ polymerization of acrylamide(AM)and lignocellulose(LC)of hydrolysates was successfully *** reaction was optimized to generate lignocellulose-acrylamide(LC-AM)with the highest molecular weight(41,060 g/mol)and charge density(-0.25 meq/g)under the optimum conditions,which were 3 h,60◦C,4%(w)initiator based on the dried mass of hydrolysate,and an AM/LC molar ratio of 5.63.A nuclear magnetic resonance(NMR)spectroscopy confirmed the grafting of acrylamide on *** prop-erties of LC-AM were characterized by the elemental analyzer,zeta potential analyzer,gel per-meation chromatography(GPC),and particle charge detector(PCD).The LC-AM was applied as a coagulant for removing ethyl violet dye from a simulated dye *** results indicated that 47.2%dye was removed from the solution at a low dosage of 0.2 g/*** dual flocculation of LC-AM with other polymers for dye removal is suggested to further improve its effectiveness.