Pe 9200

Pluronic L92 (poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (PE 9200, M_n ≈ 3650 g/mol, 20 wt % PEO) was provided by BASF Corporation (Ludwigshafen, Germany). The composition of Pluronic L92 can be represented as (EO)₈(PO)₄₇(EO)₈ [6 (link),8 (link)]. Monoethanolamine (MEA, ≥99.0%) and barium chloride dehydrate (≥99.0%) were purchased from Sigma Aldrich (Saint Louis, MO, USA). Carbon dioxide (gas, 99.9%) was purchased from AGA, NaOH 0.1 N, HCl 0.1 N, and H₂SO₄ 0.1 N were purchased from Merck KGaA (Darmstadt, Germany). All chemicals were used as received. Milli-Q water was used as solvent (18.2 MΩ cm). Compositions of liquid crystalline samples and MEA solutions are expressed in weight %.

Pluronic L92 (poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide)) (PE 9200, M_n ≈ 3650 g/mol, 20 wt % PEO) was provided by BASF Corporation (Ludwigshafen, Germany). Pluronic L81 (PE 8100, M_n ≈ 2800 g/mol, 10 wt % PEO) was purchased from Sigma Aldrich (Saint Louis, MO, USA). The average composition of Pluronic L92 and Pluronic L81 can be represented as (EO)₈(PO)₄₇(EO)₈ and (EO)₃(PO)₅₀(EO)₃, respectively [22 (link),29 (link)]. Monoethanolamine (MEA, ≥99.0%) was purchased from Sigma Aldrich. Carbon dioxide (99.7%) was purchased from AGA AB (Stockholm, Sweden). All chemicals were used as received. Milli-Q water was used as solvent (18.2 MΩ cm).