%0 Journal Article
%T Arrangement models of alkylammonium cations in the interlayer of HDTMA+ pillared montmorillonites<br>Arrangement models of alkylammonium cations in the interlayer of HDTMA^ pillared montmorillonites
%A Zhu Jianxi
%A HE Hongping
%A GUO Jiugao
%A YANG Dan
%A Xie Xiande
%A <br>ZHUJianxi
%A HEHongping等
%J 科学通报(英文版)
%D 2003
%I 
%X The orientation of HDTMA+ in the interlayer of organic pillared montmorillonites prepared at different concentrations of HDTMA+ have been studied using X-ray powder diffraction (XRD) and theoretical calculation. A series of arrangement models of HDTMA+ in the interlayer of montmorillonite have been proposed as lateral-monolayer (LM), lateral-bilayer (LB), pseudotrilayer (PT), paraffin-type-monolayer (PM), paraffin-type-bilayer (PB). With the increase of the concentration of HDTMA+, the arrangement model of HDTMA+ in the interlayer of montmorillonites changes as lateral-monolayer→lateral-bilayer→para- ffin-type monolayer→pseudotrilayer→paraffin-type-bilayer and the packing density of HDTMA+ in theinterlayer increases gradually. In the intermediate stages, different models may coexist.
%K organic pillared montmorillonite
%K arrangement model
%K XRD
%K HDTMA+<br>有机柱形蒙脱土
%K 粘土
%K 夹层
%K HDTMA^
%K 烷基铵离子
%K 排列模式
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=DE1E91C6DD4C40099FBE5E5AFEDF7096&yid=D43C4A19B2EE3C0A&vid=B6DA1AC076E37400&iid=E158A972A605785F&sid=869B6F3117981EC4&eid=965F4E89CD0AFC30&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=9&reference_num=20