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http://nopr.niscair.res.in/handle/123456789/2541
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 |
URI: | http://hdl.handle.net/123456789/2541 |
ISSN: | 0022-4456 |
Appears in Collections: | JSIR Vol.67(12) [December 2008] |
Files in This Item:
File | Description | Size | Format | |
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JSIR 67(12) 1083-1087.pdf | 66.11 kB | Adobe PDF | View/Open |
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