IONIC-CONDUCTIVITY IN LAYER SILICATES CONTROLLED BY INTERCALATION OF MACROCYCLIC AND POLYMERIC OXYETHYLENE COMPOUNDS

被引：56
作者：
ARANDA, P
GALVAN, JC
CASAL, B
RUIZHITZKY, E
机构：
[1] CSIC,INST CIENCIA MAT,C SERRANO 115 BIS,E-28006 MADRID,SPAIN
[2] CSIC,CTR NACL INVEST MET,E-28040 MADRID,SPAIN
来源：
ELECTROCHIMICA ACTA | 1992年 / 37卷 / 09期
关键词：
CROWN-ETHERS; PEO; MONTMORILLONITE; INTERCALATION; IMPEDANCE SPECTROSCOPY;
D O I：
10.1016/0013-4686(92)80114-2
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
This contribution concerns intercalation materials based on the formation of intracrystalline polymer-salt complexes obtained by insertion of poly(ethylene oxide) (PEO) and crown-ether compounds in a layer silicate (montmorillonite), containing Na+ exchangeable cations in their interlayer space. Polyoxyethylene compounds (crown ethers and PEO) are able to associate interlayer cations modifying dramatically the ionic conductivity of the natural silicate. The new organo-inorganic materials exhibit a two-dimensional structure able to induce an anisotropic character in their electrical properties.
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页码：1573 / 1577
页数：5
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