Synthesis of L-Lactide Supplemented with Stage-wise Analytical Control; Petroleum and Coal; Vol. 58, iss. 5
| Parent link: | Petroleum and Coal Vol. 58, iss. 5.— 2016.— [P. 561-566] |
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| Ente Autore: | |
| Altri autori: | , , , , |
| Riassunto: | Title screen L-lactide synthesis from an aqueous solution of L-lactic acid under different conditions in the presence or absence of a catalyst (zinc oxide, stannous octoate or magnesium ethoxide) has been studied. Synthe-sis of L-lactide is accompanied by analytical control. The glass transition temperature of lactic acid oligo-mers, i.e. a product of polycondensation at the first stage of the process, has been investigated using differential scanning calorimetry (DSC). Identification and quantitative determination of lactic acid and L-lactide at different stages of the synthesis have been performed by HPLC. A residual solvent in L-lactide after its recrystallization has been determined by gas chromatographymass spectrometry (GC-MS). Свободный доступ из сети Интернет |
| Lingua: | inglese |
| Pubblicazione: |
2016
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| Soggetti: | |
| Accesso online: | http://www.vurup.sk/wp-content/uploads/dlm_uploads/2017/07/pc_6_2016_krutas_489cor.pdf |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=653523 |