Synthesis of L-Lactide Supplemented with Stage-wise Analytical Control; Petroleum and Coal; Vol. 58, iss. 5

Synthesis of L-Lactide Supplemented with Stage-wise Analytical Control; Petroleum and Coal; Vol. 58, iss. 5

Bibliographische Detailangaben
Parent link:Petroleum and Coal
Vol. 58, iss. 5.— 2016.— [P. 561-566]
Körperschaft: Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра технологии органических веществ и полимерных материалов (ТОВПМ)
Weitere Verfasser: Krutas D. S. Darjya Sergeevna, Brozek J. Jiri, Benesova V. Vaclava, Zinovyev (Zinovjev, Zinoviev) A. L. Alexey Leonidovich, Novikov V. T. Viktor Timofeevich
Zusammenfassung: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
Sprache:Englisch
Veröffentlicht: 2016
Schlagworte:
электронный ресурс
труды учёных ТПУ
молочная кислота
перекристаллизация
Online-Zugang:http://www.vurup.sk/wp-content/uploads/dlm_uploads/2017/07/pc_6_2016_krutas_489cor.pdf
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=653523

Ähnliche Einträge

Ähnliche Einträge