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Thermal behaviour of a modified encapsulation agent |
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| Authors: | Adriana Fuliaş Gabriela Vlase Codruţa Şoica Vasile Bercean Titus Vlase Ionuţ Ledeţi |
| Institution: | 1. Faculty of Pharmacy, University of Medicine and Pharmacy “Victor Babe?”, Eftimie Murgu Square 2, 300041, Timisoara, Romania 2. Research Centre for Thermal Analysis in Environmental Problems, West University of Timisoara, Pestalozzi Street 16, 300115, Timisoara, Romania 3. Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timi?oara, 6 Carol Telbisz, 300001, Timisoara, Romania 4. SCIENT – Research Center for Instrumental Analysis (S.C. CROMATEC_PLUS S.R.L.), 18 Sos.Cotroceni, 060114, Bucharest 6, Romania |
| Abstract: | Thermal behaviour of heptakis-6-iodo-6-deoxy-beta-cyclodextrin (HIDBCD) under inert and oxidative conditions was investigated by TG/DTG/DTA, FTIR, and using the hyphenate technique TG–FTIR. Due to the fact that thermal behaviour of HIDBCD was not studied before, we set our goal in the investigation of thermal degradation process in a dynamic air atmosphere vs. nitrogen atmosphere at a heating rate of 10 °C min?1, up to 500 °C, respectively, 600 °C. It was found that the degradation process in air occurs in a single step, with a total mass loss of 99.9 %. The results of TG/DTG/DTA–FTIR indicated that the thermal behaviour of this cyclodextrin can be divided into three stages and more information was provided about the reaction sequences and the relevant products of reaction. |
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