Thermal decomposition mechanism of p-tert-butyl-calix[n]arenes

Chennakesavulu, K and Sreedevi, P and Raviatul Basaria, M and Ramanjaneya Reddy, G and Bhaskar Raju, G and Prabhakar, S and Sasipraba, T (2014) Thermal decomposition mechanism of p-tert-butyl-calix[n]arenes. Thermochimica Acta (2014) , 575 (IF-2.105). pp. 55-63.

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tThermal decomposition of p-tert-butyl-calix[n]arene was studied using thermo gravimetry (TG) and dif-ferential thermo gram (DTG) methods. Non-isothermal TG was done under static air atmosphere with1, 2.5, 5.0 and 10.0 K/min. Model-free methods such as Friedman and Flynn Wall Ozawa (FWO) wereused to evaluate the kinetic parameters such as activation energy and exponential factors. The probablethermal decomposition mechanism was proposed by analyzing the quenched intermediate p-tert-butyl-calix[n]arene samples with FTIR, mass,1H NMR,13C NMR cross polarization magic angle spectrometry(CP-MAS), EPR spectroscopy and elemental analysis. The thermal stability of the polyolefins was checkedwith p-tert-butyl-calix[n]arene as an antioxidant additive.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:p-tert-Butyl-calix[n]arene, Thermal decomposition, kinetics, Activation energy, Polyolefin, Antioxidant
Divisions:NML Chennai > Mineral Processing
ID Code:6757
Deposited By:Dr. G Bhaskar Raju
Deposited On:30 Nov 2013 11:41
Last Modified:04 May 2016 13:07
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