Competition of Phase Separation Processes during Quasi-Isothermal Foaming of Polylactide in Carbon Dioxide Environment
| Autor: | R. A. Zdrajevsky, D. A. Zimnyakov, D. A. Vereshagin, E. O. Epifanov, Vladimir K. Popov, O. V. Ushakova, Nikita V. Minaev, O. O. Parenago |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Nucleation kinetics Supercritical carbon dioxide 010304 chemical physics Polymer 010402 general chemistry 01 natural sciences Isothermal process 0104 chemical sciences Amorphous solid chemistry.chemical_compound chemistry Chemical engineering 0103 physical sciences Carbon dioxide Physical and Theoretical Chemistry |
| Zdroj: | Russian Journal of Physical Chemistry B. 14:1268-1276 |
| ISSN: | 1990-7923 1990-7931 |
| DOI: | 10.1134/s1990793120080084 |
| Popis: | The mechanisms that control the nucleation kinetics in foamed amorphous D,L-polylactide, which was preliminary plasticized using subcritical or supercritical carbon dioxide, were determined by analyzing the video data on the depressurization-induced quasi-isothermal (313.3 K) foaming of the polymer. Possible scenarios of phase separation in the polylactide–carbon dioxide system at the stage preceding active foam formation were considered. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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