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1	Entwicklung der Gruppenbeitragsmethode GEQUAC zur thermodynamischen Beschreibung ausgeprägt nichtidealer Gemische Ehlker, Gerhard Heinrich. Unknown Date (has links) (PDF) Techn. Hochsch., Diss., 2001--Aachen.
2	Thermodynamische Untersuchungen an orthorhombischem Lithiumeisen(II)-phosphat und Eisen(III)-phosphat Thomas, Christian 01 February 2019 (has links) Lithiumeisen(II)-phosphat ist ein vielversprechendes und umweltfreundliches Kathodenmaterial für den Einsatz in Lithium-Ionen-Batterien (LIB), das eingehend im Hinblick auf seine thermodynamischen- und Oberflächeneigenschaften untersucht wurde. Zur Bestimmung der mittleren molaren Mischungsenthalpie von LiFePO4 und FePO4 wurde die Methode der isothermen Titrationskalorimetrie für die Untersuchung heterogener Stoffsysteme optimiert. Die Ergebnisse konnten mit elektrochemischen Gleichgewichtszellspannungsmessungen validiert werden. Ferner wurde die Oberflächenspannung von reinem LiFePO4 experimentell mit Hilfe der Kapillar-Aufstiegsmethode an Pulvern ermittelt. Ein weiterer Forschungsschwerpunkt stellte experimentelle Bestimmung der Wärmekapazität von phasenreinem orthorhombischen FePO4 dar. Des Weiteren wurde der Ablauf der hydrothermalen LiFePO4-Synthese ausgehend von Li3PO4 und Vivianit anhand von in-situ Messungen der elektrolytischen Leitfähigkeit und thermodynamischen Modellierungen aufgeklärt. info:eu-repo/classification/ddc/540 ddc:540 Lithiumeisenphosphat Mischungsenthalpie Wärmekapazität Kalorimetrie Lithium-Ionen-Akkumulator
3	Self-incompatible solvents with ionic groups / Selbstinkompatible Lösungsmittel mit ionischen Gruppen Wang, Yana 28 February 2013 (has links) (PDF) 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. 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:541 Lösungsmittel Inkompatibilität Mischungsenthalpie
4	Self-incompatible solvents with ionic groups Wang, Yana 25 February 2013 (has links) 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. info:eu-repo/classification/ddc/541 ddc:541

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