Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 110, Issue 1, Pages 349-356Publisher
SPRINGER
DOI: 10.1007/s10973-012-2415-2
Keywords
p-tert-butyl calix[n]arene; Calix[n]arene ester derivatives; Thermal analysis; Evolved gas analysis
Funding
- Sectorial Operational Programme for Human Resources Development
- European Social Fund [POSDRU 89/1.5/S/60189]
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The thermal behaviour of three ester derivatives of p-tert-butyl calix[n]arene (n = 4, 6 and 8) in comparison with the parent calixarene was investigated by means of the thermogravimetric (TG) and differential thermogravimetic (DTG) analysis and differential scanning calorimetry (DSC). The thermal stability domains, the composition of the pyrolysis products and the thermal effects, were determined on the basis of TG, DTG and DSC plots registered in nitrogen flow. Attempts to analyse the evolved gases by TG-FTIR coupling were also performed. It was demonstrated that the stability of the calix[n]arene derivatives depends on both the size of the hydrophobic cavity and number of the substituting groups grafted on the calix[n]arene skeleton.
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