MgCuAl类水滑石的制备及插层聚合与结构表征  

Preparation,Intercalative Polymerization and Structure Characterization of Mg-Cu-Al-Hydrotalcite-Like Compound

作　　者：杜宝中[1] 米海涛[1] 杨渝[1] 彭振国[1] 

机构地区：[1]西安理工大学应用化学系,陕西西安710048

出　　处：《高分子材料科学与工程》2014年第7期177-183,共7页Polymer Materials Science & Engineering

基　　金：西安市工业科技攻关项目(YF07058)

摘　　要：以共沉淀法制备了间氨基苯甲酸插层水滑石(LDHs)复合材料,借助X射线衍射、红外光谱、热失重分析等手段对样品进行表征。结果表明,客体成功进入层间,层间距由0.79 nm扩至1.54 nm,并给出了层间排列模型,组装后依然保持良好的层状结构,且客体进入层间提高了自身的热稳定性。采用热聚合和引发剂引发聚合层间间氨基苯甲酸,引发剂质量大于0.05 g时,LDHs层间距由1.54 nm减小到1.43 nm和1.42 nm,间氨基苯甲酸单体在层间发生了聚合,推测了聚合机理。LDHs可以作为制备聚合物粒子的"微反应器"。m-Aminobenzoic acid intercalated layered double hydroxides （LDHs）composite was prepared by coprecipitation method. The as-prepared composite was characterized,by XRD, FT-IR and TG/DTA measurements. It is found that the object was intercalated into LDHs layers and the layer spacing changes from 0,79 nm to 1.54 nm. The structure model of LDHs layers was speculated. The layer structure of LDHs is well kept and its thermal stability is improved. Polymerization of m-aminobenzoic acid inside the layers was initiated by thermal treatment and initiator. The LDHs layer spacing decreases from 1.54 nm to 1.43 nm and 1.42 nm when the dosage of initiator is higher than 0.05 g, which confirms the polymerization of m-aminobenzoic acid between the layers. The polymerization mechanism was speculated. This result confirms that LDHs can be used as ＂microreactor＂ for preparation of polymer particles.

关 键 词：类水滑石 间氨基苯甲酸 插层聚合 复合材料 

分 类 号：TB334[一般工业技术—材料科学与工程]