Bubble and cloud points of the system poly(L-lactic acid) plus carbon dioxide plus dichloromethane
Kalogiannis, CG; Panayiotou, CG
| HERO ID | 3588105 |
|---|---|
| In Press | No |
| Year | 2005 |
| Title | Bubble and cloud points of the system poly(L-lactic acid) plus carbon dioxide plus dichloromethane |
| Authors | Kalogiannis, CG; Panayiotou, CG |
| Journal | Journal of Chemical and Engineering Data |
| Volume | 50 |
| Issue | 4 |
| Page Numbers | 1442-1447 |
| Abstract | Experimental data for the phase behavior of poly(L-lactic acid) (PLA) in mixtures of dichloromethane and carbon dioxide over a range of external conditions are presented. Cloud point pressures were measured using a variable-volume view cell as functions of temperature, dichloromethane-to-carbon dioxide ratio, and concentration of PLA. A high-molecular-weight (M-w 189 000) PLA was used in all studies and at mass fractions of 0.01, 0.02, and 0.03. For adequate control of the carbon dioxide-to-dichloromethane ratio, a new experimental procedure was employed that allows for good control of the composition. To ascertain the validity of the new experimental procedure, the binary system of carbon dioxide + dichloromethane was studied, and its results were compared to literature values. |
| Doi | 10.1021/je050100q |
| Wosid | WOS:000230573400060 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |