Synthesis of L-Lactide Supplemented with Stage-wise Analytical Control

Synthesis of L-Lactide Supplemented with Stage-wise Analytical Control

Bibliographic Details
Parent link:	Petroleum and Coal Vol. 58, iss. 5.— 2016.— [P. 561-566]
Corporate Author:	Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра технологии органических веществ и полимерных материалов (ТОВПМ)
Other Authors:	Krutas D. S. Darjya Sergeevna, Brozek J. Jiri, Benesova V. Vaclava, Zinovyev (Zinovjev, Zinoviev) A. L. Alexey Leonidovich, Novikov V. T. Viktor Timofeevich
Summary:	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
Published:	2016
Subjects:	электронный ресурс труды учёных ТПУ молочная кислота перекристаллизация
Online Access:	http://www.vurup.sk/wp-content/uploads/dlm_uploads/2017/07/pc_6_2016_krutas_489cor.pdf
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=653523

Internet

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