层状α-Zr(HPO_4)_2·H_2O交联过程的研究  

Studies on the Cross-Linking Process of Layer Compound a-Zr(HPO4)2 . H2O

作　　者：葛颖[1] 李连生[1] 徐如人[1] 郭海忱[1] 

机构地区：[1]吉林大学化学系

出　　处：《高等学校化学学报》1990年第10期1048-1051,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：以有机硅CH_3Si(OC_2H_5)_3和NH_2(CH_2)_3Si(OC_2H_5)_3为交联剂,对层状化合物α-Zr(HPO_4)_2·H_2O进行交联,经灼烧分别得到2种不同层间距的层柱型分子筛SiO_2-Zr(HPO_4)_2。用XRD、GC、NMR等方法对交联反应过程进行了研究,结果表明,交联剂在反应过程中发生水解、缩聚。某种聚合态硅选择性地嵌入α-Zr(HPO_4)_2·H_2O层间。Two new Zeolite like materials, SiO2-Zr(HPO4)2( Ⅰ ) and SiO2-Zr(HPO4)2( Ⅱ ), were synthesized by reacting the cross-liking agents of CH3Si(OC2H5)3 and NH2(CH2)3Si(OC2H5)3 with layer compound of a-Zr(HPO4)2 . H2O . The reactions produced two types of SiO2-Zr(HPO4)2 with different basal spacing. .This process was investigated by means of XRD, GC and liquid NMR. The results show that there are three steps in the cross-linking process. Firstly, the cross-liking agents are hy-drolyzed and condensed. Secondly, one type of polymerization state silicon is intercalated into layers in a-Zr(HPO4)2. H2O. Lastly, the intercalated compounds are calcined. During the calcination the groups on the layers react with silicon to form the zeolite like materials. .

关 键 词：磷酸氢锆 嵌入 交联 

分 类 号：O614.412[理学—无机化学]