Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” Structure
The molar heat capacity of the first-generation hybrid dendrimer with a “carbosilane core/phenylene shell” structure was measured for the first time in the temperature range <i>T</i> = 6–600 K using a precise adiabatic vacuum calorimeter and DSC. In the above temperature interval, the gl...
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MDPI AG
2021-11-01
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| Series: | Entropy |
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| author | Semen S. Sologubov Alexey V. Markin Natalia N. Smirnova Elena S. Chamkina Irina Yu. Krasnova Sergey A. Milenin Olga A. Serenko Zinaida B. Shifrina Aziz M. Muzafarov |
| author_facet | Semen S. Sologubov Alexey V. Markin Natalia N. Smirnova Elena S. Chamkina Irina Yu. Krasnova Sergey A. Milenin Olga A. Serenko Zinaida B. Shifrina Aziz M. Muzafarov |
| author_sort | Semen S. Sologubov |
| collection | DOAJ |
| description | The molar heat capacity of the first-generation hybrid dendrimer with a “carbosilane core/phenylene shell” structure was measured for the first time in the temperature range <i>T</i> = 6–600 K using a precise adiabatic vacuum calorimeter and DSC. In the above temperature interval, the glass transition of the studied compound was observed, and its thermodynamic characteristics were determined. The standard thermodynamic functions (the enthalpy, the entropy, and the Gibbs energy) of the hybrid dendrimer were calculated over the range from <i>T</i> = 0 to 600 K using the experimentally determined heat capacity. The standard entropy of formation of the investigated dendrimer was evaluated at <i>T</i> = 298.15 K. The obtained thermodynamic properties of the studied hybrid dendrimer were compared and discussed with the literature data for some of the first-generation organosilicon and pyridylphenylene dendrimers. |
| first_indexed | 2024-03-10T04:12:14Z |
| format | Article |
| id | doaj.art-82266c7e84924817958189cf396666c4 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-10T04:12:14Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-82266c7e84924817958189cf396666c42023-11-23T08:09:52ZengMDPI AGEntropy1099-43002021-11-012312155710.3390/e23121557Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” StructureSemen S. Sologubov0Alexey V. Markin1Natalia N. Smirnova2Elena S. Chamkina3Irina Yu. Krasnova4Sergey A. Milenin5Olga A. Serenko6Zinaida B. Shifrina7Aziz M. Muzafarov8Chemistry Department, National Research Lobachevsky State University of Nizhny Novgorod, 23/5 Gagarin Av., 603950 Nizhny Novgorod, RussiaChemistry Department, National Research Lobachevsky State University of Nizhny Novgorod, 23/5 Gagarin Av., 603950 Nizhny Novgorod, RussiaChemistry Department, National Research Lobachevsky State University of Nizhny Novgorod, 23/5 Gagarin Av., 603950 Nizhny Novgorod, RussiaNesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov St., 119334 Moscow, RussiaNesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov St., 119334 Moscow, RussiaEnikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences, 70 Profsoyuznaya St., 117393 Moscow, RussiaNesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov St., 119334 Moscow, RussiaNesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov St., 119334 Moscow, RussiaNesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov St., 119334 Moscow, RussiaThe molar heat capacity of the first-generation hybrid dendrimer with a “carbosilane core/phenylene shell” structure was measured for the first time in the temperature range <i>T</i> = 6–600 K using a precise adiabatic vacuum calorimeter and DSC. In the above temperature interval, the glass transition of the studied compound was observed, and its thermodynamic characteristics were determined. The standard thermodynamic functions (the enthalpy, the entropy, and the Gibbs energy) of the hybrid dendrimer were calculated over the range from <i>T</i> = 0 to 600 K using the experimentally determined heat capacity. The standard entropy of formation of the investigated dendrimer was evaluated at <i>T</i> = 298.15 K. The obtained thermodynamic properties of the studied hybrid dendrimer were compared and discussed with the literature data for some of the first-generation organosilicon and pyridylphenylene dendrimers.https://www.mdpi.com/1099-4300/23/12/1557hybrid dendrimersadiabatic calorimetryDSCheat capacityglass transitionthermodynamic functions |
| spellingShingle | Semen S. Sologubov Alexey V. Markin Natalia N. Smirnova Elena S. Chamkina Irina Yu. Krasnova Sergey A. Milenin Olga A. Serenko Zinaida B. Shifrina Aziz M. Muzafarov Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” Structure Entropy hybrid dendrimers adiabatic calorimetry DSC heat capacity glass transition thermodynamic functions |
| title | Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” Structure |
| title_full | Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” Structure |
| title_fullStr | Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” Structure |
| title_full_unstemmed | Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” Structure |
| title_short | Thermodynamic Properties of the First-Generation Hybrid Dendrimer with “Carbosilane Core/Phenylene Shell” Structure |
| title_sort | thermodynamic properties of the first generation hybrid dendrimer with carbosilane core phenylene shell structure |
| topic | hybrid dendrimers adiabatic calorimetry DSC heat capacity glass transition thermodynamic functions |
| url | https://www.mdpi.com/1099-4300/23/12/1557 |
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