三甲基木质素基季胺盐-羧甲基纤维素聚电解质复合物的制备  

Preparation of Polyelectrolyte Complex by Trimethyl-lignin Quaternary Amine Salt and Carboxymethyl Cellulose

作　　者：王春海[1] 臧健[1] 卑莹[1] 任世学[1] 马艳丽[1] 方桂珍[1] 

机构地区：[1]东北林业大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《林产化学与工业》2013年第1期8-12,共5页Chemistry and Industry of Forest Products

基　　金：国家林业局行业公益项目(200904072);国家自然科学基金资助项目(31170542)

摘　　要：以三甲基木质素基季胺盐(TLQAS)和羧甲基纤维素(CMC)为原料通过静电吸附制备聚电解质复合物,并表征其结构。首先制得三甲基环氧丙基氯化胺单体,再与碱木质素接枝反应,合成TLQAS;在不同pH值和物料比条件下进行三甲基木质素季胺盐和羧甲基纤维素作用,制备三甲基木质素季胺盐-羧甲基纤维素(TLQAS-CMC)聚电解质复合物,测得其含氮量2.11%;通过FT-IR、DSC、XRD对聚电解质复合物进行表征,结果表明:TLQAS-CMC聚电解质复合物存在;聚电解质复合物的热分解温度提高,热稳定性增强;XRD显示复合物排列无序,TLQAS-CMC复合物具有一定的吸水膨胀性能。Polyelectrolyte complexes were prepared by electrostatic adsorption using trimethyl-lignin quaternary amine salt and carboxymethyl cellulose based on static action theory in present study, and their structures were characterized as well. At first, quaternary amine monomer （trimethyl-epoxy propyl-amine chloride） was prepared from trimethylamine and epichrolohydrin, and then the trimethyl lignin quaternary ammonium salt was synthesized by graft reaction of this cationic monomer and purified alkali lignin. Trimethyl lignin quaternary ammonium salt-carboxymethyl cellulose （TLQAS-CMC）polyelectrolyte complex was obtained under different pH value and material ratio, and the nitrogen content of this complex was 2.11%. Polyelectrolyte complexes were characterized by FT-IR, DSC and XRD repectively. The results showed that the polyelectrolyte complex had been synthesilzed. The higher thermal decomposition temperature of the polyelectrolyte complex indicated its better thermal stability XRD revealed the complex＇s disordered structure, and the complex had certain water-swelling property.

关 键 词：三甲基木质素季胺盐 羧甲基纤维素 聚电解质复合物 

分 类 号：TQ35[化学工程]