别嘌醇插层Zn/Al-NO_3-LDH复合材料的组装及缓释性能  

Assembly and Release Behavior of Allopurinol Intercalated Zn/Al-NO_3-LDH Composite

作　　者：杜宝中[1] 邰炜[1] 骆薇[1] 彭振国[1] 

机构地区：[1]西安理工大学应用化学系,西安710048

出　　处：《无机材料学报》2011年第12期1293-1298,共6页Journal of Inorganic Materials

基　　金：西安市工业科技攻关项目(YF07058)~~

摘　　要：以共沉淀法和离子交换法制备别嘌醇插层Zn/Al-NO3-LDH复合材料,结合XRD、FT-IR、TG-DTA分析表明,别嘌醇进入LDH层间与层板相互作用形成超分子结构,提高了别嘌醇的耐酸性和热稳定性,且共沉淀法制备的别嘌醇插层LDH具有良好的缓释性能.提出了共沉淀法制备有机分子插层LDH过程中,存在易于客体进行离子交换和包埋的溶胶-凝胶中间形态的假设,可提高有机分子插层量.Allopurinot intercalated Zn/Al-NO3-LDH composite materials were prepared by coprecipitation and ion exchange methods.It was found by XRD,FT-IR and TG-DTA analysis that allopurinol were intercalated into the LDH layers and formed a supramolecular structure in the reaction with laminate.The structure could improved allopurinol acid resistance and thermal stability.The allopurinol intercalated LDH preparaed by coprecipitation method has an excellent sustained-release performance.It was supposed that the intercalation capacity of organic molecules was increased by a Sol-Gel intermediate which was easy for the objects to be ion-exchanged and embedded during the organic molecules intercalating into the LDH layers by coprecipitation method.

关 键 词：别嘌醇 水滑石 插层组装 复合材料 缓释 

分 类 号：TQ426[化学工程]