Absorption of CO2 in lyotropic liquid crystals

Vapor-liquid equilibria data of three poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide)/water liquid crystals (LCs) with CO 2 has been obtained up to 6 bar. The investigated LCs consist of 60% (EO) 3 (PO) 50 (EO) 3 (Pluronic L81), 70% (EO) 8 (PO) 47 (EO) 8 (Pluronic L92), and 70% L92-N...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Molecular Crystals and Liquid Crystals 2020-01, Vol.703 (1), p.87-106
Hauptverfasser:	Rodríguez-Fabià, Sandra, Øyen, Marita, Winter-Hjelm, Nicolai, Norrman, Jens, Lund, Reidar, Sørland, Geir Humborstad, Knuutila, Hanna K., Sjöblom, Johan, Paso, Kristofer Gunnar
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Bound water Carbon dioxide Crystals Ethylene oxide Liquid crystals Liquid-vapor equilibrium lyotropic liquid crystals NMR Nuclear magnetic resonance PEO-PPO-PEO Polyethylene oxide Propylene oxide Rheological properties Rheology
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Vapor-liquid equilibria data of three poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide)/water liquid crystals (LCs) with CO 2 has been obtained up to 6 bar. The investigated LCs consist of 60% (EO) 3 (PO) 50 (EO) 3 (Pluronic L81), 70% (EO) 8 (PO) 47 (EO) 8 (Pluronic L92), and 70% L92-NH 2 . The maximum CO 2 loading of the LCs was 5-13 g CO 2 /kg sample. Pure L81 and L92 displayed higher absorption of CO 2 than the LCs. Rheology measurements revealed that the increasing viscosity of the samples decreases the CO 2 loading. Water diffusion in the LCs was qualitatively investigated by nuclear magnetic resonance, confirming that free water and tightly bound water are present in the LCs.
ISSN:	1542-1406 1563-5287 1527-1943
DOI:	10.1080/15421406.2020.1780830