季铵盐改性壳聚糖的制备及其对红花水提液的澄清效果  

Synthesis of Quaternary Ammonium Salt of Chitosan and Its Flocculating Effect on Water Extract of Carthamus Tinctorius L

作　　者：孙多先[1] 徐正义[1] 张晓行[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《石油化工》2003年第10期892-895,共4页Petrochemical Technology

摘　　要：对壳聚糖进行改性制备了可完全溶于水的N-羟丙基三甲基季铵化壳聚糖(HTCC),IR谱图证实取代反应主 要发生在壳聚糖的氨基上。絮凝实验显示HTCC的澄清效果优于壳聚糖,其絮凝剂投药量的适用范围更宽。对红花 水提液的浊度去除率达95％,有效成分保留率在76.6％以上,同时兼有抑菌作用。Chitosan derivative with quaternary ammonium salt.N - (2 - hydroxypropyltrimethyl ammonium) - chitosan chloride(HTCC), was prepared to improve its cationic content and water solubility. Flocculation of HTCC on extraction liquid of carthamus tinctorius L was explored. HTCC could effectively clarify extraction liquid and retain active constituents in a wide dosage application range. Liquid flocculated by HTCC demonstrated a stronger antibacterial activity than that of chitosan.

关 键 词：壳聚糖 季铵盐 絮凝 红花不提液 改性 制备 澄清效果 

分 类 号：O636[理学—高分子化学]