有机阴离子插层LDH在有机溶剂中的分散性能  

Dispersive Behaviors of Organic Anion Intercalated Layered Double Hydroxides in Organic Solvents

作　　者：王盎然[1] 包永忠[1] 翁志学[1] 黄志明[1] 

机构地区：[1]浙江大学化学工程与生物工程学系,化学工程联合国家重点实验室,杭州310027

出　　处：《应用化学》2010年第9期1050-1054,共5页Chinese Journal of Applied Chemistry

基　　金：国家科技支撑计划项目课题资助(2007BAE10B01)

摘　　要：采用共沉淀法分别制备了以对苯乙烯磺酸根、10-十一烯酸根、α-丙烯基烷基酚聚氧乙烯醚(10)硫酸根(HS-10)插层的层状双金属氢氧化物(LDH),并用X射线衍射、傅里叶红外光谱、元素分析和能谱分析测试技术表征了插层LDH的结构,用激光粒度仪和透射电子显微镜表征了在不同溶剂中LDH的分散尺寸和形貌。结果表明,HS-10插层LDH在二甲基亚砜中分散性好,并部分剥离。比较LDH插层剂和溶剂的Hansen溶度参数δ,表明插层剂疏水端的Hansen溶度参数与溶剂的溶度参数越接近,得到的LDH分散液越稳定;而二者Hansen溶度参数δ的极性分量(δp)和氢键分量(δh)越接近,LDH层板的剥离就越明显。4-Styrene sulphonate intercalated layered double hydroxide （LDH） （MgAl-SS LDH ） ,10-undecylenate intercalated LDH（MgAl-U LDH） ,polyoxyethylene（ 10） α-propenyl alkylphenyl ether sulfate （HS-10） intercalated LDH（ MgAl-HS10 LDH） were prepared by co-precipitation methods,respectively.The structure of LDH was characterized by X-ray diffraction,fourier transform infrared spectrometry,element analysis,and energy spectrum analysis.Three kinds of LDH were dispersed in different solvents.The particle size and morphology of LDH dispersions were investigated by laser particle analyzer and transmission electron microscope.It was found that MgAl-HS10 LDH could be well dispersed and partially exfoliate in dimethyl sulfoxide.Hansen＇s three-dimensional solubility parameters were adopted to explain the dispersion activity of LDH.LDH dispersions were stable when the Hansen＇s dimensional solubility parameters of the hydrophobic groups of intercalated agents are similar to those of the solvents.LDH layer has a strong exfoliation tendency when both polar（ δp） and hydrogen-bonding（ δh） forces of the hydrophobic groups of the intercalated agents are comparable to those of the solvents.

关 键 词：层状双金属氢氧化物 插层 Hansen溶度参数 分散 剥离 

分 类 号：O648.2[理学—物理化学]