聚二烯丙基二甲基氯化铵-丙烯酰胺改性蒙脱土的研究  

Study on montmorillonite intercalation with polymer diallyldimethylammonium chloride-acrylamide

作　　者：高党鸽[1] 马建中[1] 吕斌[1] 李运[1] 董雷[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《功能材料》2010年第A01期67-71,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50573047);陕西科技大学博士启动基金资助项目(BJ09-21);陕西科技大学科研创新团队建设资助项目(TD09-03);陕西省重大科技创新资助项目(2009ZKC03-14)

摘　　要：制备了系列数均分子量为5500、6000、8500和20000的聚二烯丙基二甲基氯化铵-丙烯酰胺;对聚合物进行纯化处理后,采用提纯聚合物、未提纯聚合物和质子化后的提纯聚合物进行钠基蒙脱土的改性;选用数均分子量为6000的提纯聚合物进行了不同用量聚合物改性钠基蒙脱土的研究。结果表明,本实验条件下制备的提纯聚合物能够顺利进行蒙脱土插层;聚合物中未反应单体的存在不利于聚合物大分子插层蒙脱土;对聚合物进行质子化处理后,其对蒙脱土的插层无明显影响;提纯PDM-AM聚合物(6000Mn)改性蒙脱土的层间距随聚合物用量的增加而增大;当聚合物用量为1.4CEC时,聚合物改性蒙脱土XRD谱图中的衍射峰宽化。A series of molecular weight of polymer diallyldimethylammonium chloride-acrylamide（5500,6000,8500 and 20000Mn） was prepared.The study that polymer diallyldimethylammonium chloride-acrylamide（PDM-AM） intercalated Na＋ montmorillonite（Na-MMT） by using purified PDM-AM,unpurified PDM-AM and protonized PDM-AM respectively was carried out.Montmorillonite was intercalated with different dosage of purified PDM-AM（6000Mn）.XRD results indicated that PDM-AM could intercalate into Na-MMT,but unrection monomer was disadvantage for polymer intercalating Na-MMT.The effect of intercalating Na-MMT was not improved by using protonized PDM-AM.The d-spacing of polymer intercalating montmonrillonite was increasing with increasing polymer dosage.The diffract peak was broaden when the polymer dosage was 1.4 CEC.

关 键 词：聚二烯丙基二甲基氯化铵 丙烯酰胺 蒙脱土 插层 改性 

分 类 号：TQ050.4[化学工程]