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Title: Effect of substituents on thermal behavior of some symmetric double schiff’s bases containing a cardo group
Authors: Aghera, V K
Parsania, P H
Keywords: DSC;Kinetic parameters;Symmetric double schiff’s bases;TGA
Issue Date: Dec-2008
Publisher: CSIR
Abstract: Thermal behavior of symmetric double schiff’s bases containing cardo group has been studied by TGA and DSC techniques at 10°C/min in nitrogen atmosphere. DSC transitions, thermal stability and kinetic parameters are affected by nature and position of substituents. Schiff’s bases are thermally stable between 173-272°C and followed either a single step or two steps degradation (fractional or integral order). Different magnitudes of n, E and A suggested different degradation mechanisms. A large and negative magnitudes of “S* confirmed highly ordered transition state, while positive magnitudes of “S* confirmed less ordered transition state.
Page(s): 1083-1087
ISSN: 0022-4456
Appears in Collections:JSIR Vol.67(12) [December 2008]

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