- AutorIn
- Yana Wang
- Titel
- Self-incompatible solvents with ionic groups
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:ch1-qucosa-107041
- Übersetzter Titel (DE)
- Selbstinkompatible Lösungsmittel mit ionischen Gruppen
- Datum der Einreichung
- 22.11.2012
- Datum der Verteidigung
- 25.02.2013
- Abstract (EN)
- 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.
- Freie Schlagwörter (DE)
- Selbstinkompatibles Lösungsmittel, Mischungsthermodynamik, binäre & ternäre Mischungen, Phasenseparation, ionische Flüssigkeit, Blockcopolymer, isotherme Kalorimetrie, Fluoreszenzspektroskopie
- Freie Schlagwörter (EN)
- Self-incompatible solvent, Thermodynamics of mixing, Binary & ternary mixtures, Phase separation, Ionic liquids, Block copolymers, Isothermal calorimetry, Fluorescence spectroscopy
- Klassifikation (DDC)
- 541
- Normschlagwörter (GND)
- Lösungsmittel, Inkompatibilität, Mischungsenthalpie
- GutachterIn
- Prof. Dr. Werner A. Goedel
- Jun.-Prof. Dr. Joachim Friedrich
- BetreuerIn
- Prof. Dr. Werner A. Goedel
- Den akademischen Grad verleihende / prüfende Institution
- Technische Universität Chemnitz, Chemnitz
- URN Qucosa
- urn:nbn:de:bsz:ch1-qucosa-107041
- Veröffentlichungsdatum Qucosa
- 28.02.2013
- Dokumenttyp
- Dissertation
- Sprache des Dokumentes
- Englisch