Eintrag in der Universitätsbibliographie der TU Chemnitz
Volltext zugänglich unter
URN: urn:nbn:de:bsz:ch1-qucosa-107041
Wang, Yana
Goedel, Werner A. (Prof. Dr.) ; Friedrich, Joachim (Jun.-Prof. Dr.) (Gutachter)
Selbstinkompatible Lösungsmittel mit ionischen Gruppen
Self-incompatible solvents with ionic groups
Kurzfassung in englisch
The concept of a self-incompatible solvent is introduced as a molecule composed of two parts (compound 1 and 2) with unfavourable interactions. A third compound will be readily dissolved in this solvent to diminish this unfavourable interaction by dilution. The more incompatible compounds 1 and 2 are, the stronger this behaviour is expected to be. In this work, ionic liquids comprising non-polar carbon chain and polar ionic group are chosen to serve as a model of self-incompatible solvent. The interactions parameters k of the ionic liquids with active ingredients are investigated to examine the effect of self-incompatibility of the ionic liquid molecule.On the other hand, phase separation between compounds 1 and 2 will reduce the positive effect of self-incompatibility. The tendency of phase separation is increasing with increasing size of the two compounds. Thus, if compounds 1 and 2 are blocks tied together into a block copolymer, one expects a decreasing ability of the block copolymer to dissolve an active ingredient with increasing block length. In this work the ability of polybutadiene-block-poly(2-vinylpyridine) (PB-b-P2VP) block copolymers to dissolve the model compound anthracene is investigated. As expected, the solubility indeed decreases with increasing block length.
| Universität: | Technische Universität Chemnitz | |
| Institut: | Professur Physikalische Chemie | |
| Fakultät: | Fakultät für Naturwissenschaften | |
| Dokumentart: | Dissertation | |
| Betreuer: | Goedel, Werner A. (Prof. Dr.) | |
| URL/URN: | http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-107041 | |
| SWD-Schlagwörter: | Lösungsmittel , Inkompatibilität , Mischungsenthalpie | |
| Freie Schlagwörter (Deutsch): | Selbstinkompatibles Lösungsmittel , Mischungsthermodynamik , binäre & ternäre Mischungen , Phasenseparation , ionische Flüssigkeit , Blockcopolymer , isotherme Kalorimetrie , Fluoreszenzspektroskopie , Self-incompatible solvent , Thermodynamics of mixing , Binary & ternary mixtures , Phase separation , Ionic liquids , Block copolymers , Isothermal calorimetry , Fluorescence spectroscopy | |
| DDC-Sachgruppe: | Physikalische Chemie | |
| Tag der mündlichen Prüfung | 25.02.2013 |
