CJCU

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (S1): 268.

• Articles • Previous Articles     Next Articles

Calix(8)arene LB Superlattices: Pyroelectric Molecular Baskets

Tim Richardson1, Michael B.Greenwood1, Frank Davis2, Charles J.M.Stirling2   

  1. 1. Centre for Molecular Materials and Department of Physics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, U. K.;
    2. Centre for Molecular Materials and Department of Chemistry, University of Sheffield, Dainton, Brook Hill, Sheffield S3 7HF U. K
  • Received:1995-09-21 Online:1995-12-31 Published:1995-12-31

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Abstract:

Carboxyl and amino groups have been inserted into calix(8) arene rings in order to yield two materials which, when processed as alternate layer Langmuir-Blodgett assemblies, exhibit the pyroelectric effect. Such a temperature-dependent electric polarisation arises partially from the proton transfer between the acid and amine groups. The calix(8) arene system has been selected owing to the extreme tinness, of each monolayer(~1.0 nm), the resulting high density of acid-amine pairs and the very high thermal stability exhibited by calixarenes(typically m.p.>200℃).

Key words: calix(8) arene system, LB superlattice, Pyroelectric molecular basket

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