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Studies on a Cationically Modified Quaternary Ammonium Salt of Lignin 被引量:18

Studies on a Cationically Modified Quaternary Ammonium Salt of Lignin
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摘要 A new quaternary ammonium salt monomer was synthesized and a quaternary amination of lignin( noted as QL), with the monomer was carried out by grafting copolymerization. The products were characterized by Fourier Transform Infrared spectroscopy( FTIR). The experimental results indicate that the yield of the monomer was 99.06%, and the conversion of the monomer and the grafting yield of QL were 93.69% and 185.78%, respectively. The feasibility of QL as the flocculant to be applied in color removal of five artificial dyes, erioehrome black T(dye A), gongo red(dye B ), direct fast black G (dye C ), cuprofix blue green B (dye D ), and acid black ATT (dye E ) was examined. Results show that OL exhihits the favorable flocculation nerformance and high stability. A new quaternary ammonium salt monomer was synthesized and a quaternary amination of lignin( noted as QL), with the monomer was carried out by grafting copolymerization. The products were characterized by Fourier Transform Infrared spectroscopy( FTIR). The experimental results indicate that the yield of the monomer was 99.06%, and the conversion of the monomer and the grafting yield of QL were 93.69% and 185.78%, respectively. The feasibility of QL as the flocculant to be applied in color removal of five artificial dyes, erioehrome black T(dye A), gongo red(dye B ), direct fast black G (dye C ), cuprofix blue green B (dye D ), and acid black ATT (dye E ) was examined. Results show that OL exhihits the favorable flocculation nerformance and high stability.
出处 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2007年第4期479-482,共4页 高等学校化学研究(英文版)
基金 Supported by the National Nature Science Technology Item of of China(No.2005DC105005-01).
关键词 Quaternary ammonium salt of lignin(QL) Cationic monomer Grafting copolymerization FLOCCULATION Quaternary ammonium salt of lignin(QL) Cationic monomer Grafting copolymerization Flocculation
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