Dielectric relaxation in poly(n-alkyl methacrylate)s and their mixtures with p-nitroaniline

作者: Madalena S. Dionísio , Joaquim J. Moura-Ramos , Graham Williams

DOI: 10.1016/0032-3861(94)90845-1

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摘要: In the work described in this paper dielectric properties of solid solutions p-nitroaniline poly(methyl methacrylate), poly(ethyl methacrylate) and poly(n-butyl were measured frequency range from 20 to 106 Hz results obtained compared with those pure polymers. It is shown that presence solute has a strong influence on relaxation process ascribed formation hydrogen bonds between amino group side groups polymer. effect less pronounced it absent case suggesting increasing size n-alkyl prevents bond

参考文章(17)
B. E. Read, G. (Graham) Williams, Norman Gerard McCrum, Anelastic and Dielectric Effects in Polymeric Solids ,(1991)
G. Williams, D. A. Edwards, Effect of pressure on the dielectric relaxation of poly-n-butyl methacrylate Transactions of The Faraday Society. ,vol. 62, pp. 1329- 1335 ,(1966) , 10.1039/TF9666201329
S. Havriliak, Dynamic parameters for some poly (n-alkyl methacrylates) Journal of Polymer Science Part B: Polymer Physics. ,vol. 28, pp. 1251- 1260 ,(1990) , 10.1002/POLB.1990.090280804
Graham Williams, David C. Watts, Non-symmetrical dielectric relaxation behaviour arising from a simple empirical decay function Transactions of the Faraday Society. ,vol. 66, pp. 80- 85 ,(1970) , 10.1039/TF9706600080
B J Jones, D Tidy, G Williams, Cells for the measurement of dielectric permittivity and thermally stimulated discharge current Journal of Physics E: Scientific Instruments. ,vol. 9, pp. 693- 694 ,(1976) , 10.1088/0022-3735/9/8/026
G. Williams, P.J. Hains, Molecular motion in the supercooled liquid state: Small molecules in slow motion Chemical Physics Letters. ,vol. 10, pp. 585- 589 ,(1971) , 10.1016/0009-2614(71)87043-4
Michael F. Shears, Graham Williams, Molecular dynamics of the supercooled liquid state. Low frequency dielectric relaxation of benzophenone, cyclohexanone and fenchone in o-terphenyl Journal of the Chemical Society, Faraday Transactions. ,vol. 69, pp. 1050- 1059 ,(1973) , 10.1039/F29736901050
Madalena S. Dionísio, Joaquim J. Moura-Ramos, Graham Williams, Molecular motions in poly(vinyl acetate) and in poly(vinyl acetate)p-nitroaniline mixtures Polymer. ,vol. 34, pp. 4105- 4110 ,(1993) , 10.1016/0032-3861(93)90674-Y
Du Lei, J. Runt, A. Safari, R. E. Newnham, Dielectric Properties of Azo Dye-Poly(methyl methacrylate) Mixtures Macromolecules. ,vol. 20, pp. 1797- 1801 ,(1987) , 10.1021/MA00174A016