季铵阳离子聚乙烯醇膜材料的合成及表征  

Synthesis and Characterization of Polycation Poly( vinyl alcohol)Material

作　　者：王萍[1] 郑超[1] 何志勇[1] 孔茜[1] 

机构地区：[1]泰山医学院化学与化学工程学院,山东,泰安,271000

出　　处：《精细与专用化学品》2005年第24期16-18,共3页Fine and Specialty Chemicals

摘　　要：利用超声振荡,醚化剂(3-氯-2-羟丙基)三甲基氯化铵水溶液对聚乙烯醇的侧基进行醚化,制备了聚阳离子膜材料.并采用克氏定氮法测定取代度、IR对产品的结构进行了表征.通过正交实验法确定最佳工艺条件为:醚化剂与KOH的物质的量比为1:2时,在65℃超声震荡1h,产品醚化度可达6%.The polycation membrane material is prepared via etherification of the side groups of poly（ vinyl alcohol）using （3-chloro-2-hydroxypropyl） trimethyl ammonium chloride under ultrasonic oscillation. The degree of substitution is identified by the Kjeldahl method and the structure of target product was characterized with IR. The optimum reaction conditions are obtained by orthogonal experimental design： n （ etherification agent） ： n （KOH） = 1：2, reaction temperature is 65℃, and oscillation time is lh. Under these conditions the etherification degree of product can be reached 6%.

关 键 词：聚乙烯醇 醚化 取代度 聚阳离子 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业] TQ028.8