聚乙烯醇基质球状疏水吸附树脂的制备及表征  

SYNTHESIS AND CHARACTERIZATION OF POLYVINYL ALCOHOL-BASED HYDROPHOBIC ADSORPTION RESINS

作　　者：匡科[1] 应光国[1] 

机构地区：[1]中国科学院广州地球化学所有机地球化学国家重点实验室

出　　处：《精细石油化工》2008年第2期42-46,共5页Speciality Petrochemicals

摘　　要：以聚乙烯醇(PVA)为原料,甲醛作交联剂,采用悬浮聚合法制备了球状交联PVA颗粒。并对水溶液中PVA含量、表面活性剂种类、反应温度等影响因素进行了考察,最佳工艺条件为:PVA质量分数15%,表面活性剂V(Span-80):m(油酸钠)为2 mL/g,在88～92℃进行悬浮聚合。以球状交联PVA颗粒为基质,用醇钠溶液预处理后,通过Williamson醚化反应制备了球状疏水吸附树脂,最佳醚化反应条件为:醇钠溶液浓度2.0 mol/L,NaOH浓度4mol/L,醚化温度50～60℃。The polymeric beads of polyvinyl alcohol （PVA） were synthesized by suspended polymerization. The optimal conditions were found as follows：content of PVA 15%, surface-active agent ratio,span-80 （mL） ： sodium oleate （g）=2 ： 1, and reaction temperature 88- 92 ℃. Then, hydrophobic adsorption resin was synthesized by Williamson etherification method. The optimum conditions were found as follows. 2.0 mol/L sodium methoxide, 4.0 mol/L NaOH solution and 88 - 92 ℃.

关 键 词：悬浮聚合 聚乙烯醇 疏水吸附树脂 Williamson醚化反应 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业]