| Naslov: | Measurement of CO2 solubility and diffusivity in poly(L-lactide) and poly(D,L-lactide-co-glycolide) by magnetic suspension balance |
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| Avtorji: | ID Markočič, Elena (Avtor)
ID Škerget, Mojca (Avtor)
ID Knez, Željko (Avtor) |
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| Datoteke: |  http://dx.doi.org/10.1016/j.supflu.2008.07.011
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Neznano |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FKKT - Fakulteta za kemijo in kemijsko tehnologijo
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| Opis: | The solubility of supercritical carbon dioxide (scCO2) in poly(l-lactide) and poly(d,l-lactide-co-glycolide) at different temperatures (308, 313 and 323 K) and pressures (10-30 MPa) was measured using a magnetic suspension balance. The solubility data were also used for estimating the binary diffusion coefficients. The results show a good solubility of CO2 in both polymers: up to 43% in poly(l-lactide) and 30% in poly(d,l-lactide-co-glycolide). The diffusion coefficients have high values, which verify the liquid-like solvating properties of scCO2. The diffusion coefficient depends on the quantity of gas already absorbed by the polymer; its values decrease with increasing gas concentration. |
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| Ključne besede: | SC CO2, solubility, diffusivity, magnetic suspension balance |
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| Leto izida: | 2008 |
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| PID: | 20.500.12556/DKUM-26284  |
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| UDK: | 66-987 |
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| COBISS.SI-ID: | 12682262 |
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| ISSN pri članku: | 0896-8446 |
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| NUK URN: | URN:SI:UM:DK:GBQ81QFM |
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| Datum objave v DKUM: | 31.05.2012 |
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| Število ogledov: | 1638 |
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| Število prenosov: | 102 |
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| Metapodatki: |     |
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| Področja: | Ostalo
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