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Thermal degradation of alkyl triphenyl phosphonium intercalated montmorillonites

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Thermal degradation of alkyl triphenyl phosphonium intercalated montmorillonites
Creator Ganguly, Saheli
Dana, Kausik
Mukhopadhyay, Tapas Kumar
Ghatak, Sankar
Subject Structural Clay Products
Description The decomposition mechanism of intercalated montmorillonites at a particular temperature region and the activation energy involved in it are the two important aspects which determines the thermal stability of intercalated montmorillonites. In this study, montmorillonite was intercalated with alkyl (methyl, ethyl, propyl, and dodecyl) triphenyl phosphonium intercalates. Differential thermogravimetric analysis of each intercalated montmorillonites showed different peaks with associated organic loss at different temperature zone. Intercalated montmorillonites were subjected to isothermal kinetic analysis corresponding to selected temperature zone obtained from DTG peaks. Activation energies of organic decomposition process at selected temperature zones were determined. Mass spectral analysis and FTIR were done to understand the decomposition mechanisms and to relate them with the estimated activation energies.
Publisher Kluwer Academic
Date 2011-07
Type Article
Format application/pdf
Identifier http://cgcri.csircentral.net/215/1/JTherm_Anal_Calori105_(2011)199%E2%80%93209.pdf
Ganguly, Saheli and Dana, Kausik and Mukhopadhyay, Tapas Kumar and Ghatak, Sankar (2011) Thermal degradation of alkyl triphenyl phosphonium intercalated montmorillonites. Journal of Thermal Analysis and Calorimetry, 105 (1). pp. 199-209. ISSN 1388-6150
Relation http://cgcri.csircentral.net/215/