Synthesis of l-lactide supplemented with stage-wise analytical control

Daria S. Krutas, Jirí Brožek, Václova Benešová, Alex L. Zinovyev, Viktor T. Novikov

Research output: Contribution to journalArticle

Abstract

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 deter-mination 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 chromatography-mass spectrometry (GC-MS).

Original languageEnglish
Pages (from-to)561-566
Number of pages6
JournalPetroleum and Coal
Volume58
Issue number5
Publication statusPublished - 1 Jan 2016

Fingerprint

Lactic acid
Polycondensation
Zinc oxide
Gas chromatography
Mass spectrometry
Magnesium
Differential scanning calorimetry
Crystallization
Catalysts

Keywords

  • Lactic acid oligomer
  • Lactide
  • Recrystallization

ASJC Scopus subject areas

  • Energy(all)

Cite this

Synthesis of l-lactide supplemented with stage-wise analytical control. / Krutas, Daria S.; Brožek, Jirí; Benešová, Václova; Zinovyev, Alex L.; Novikov, Viktor T.

In: Petroleum and Coal, Vol. 58, No. 5, 01.01.2016, p. 561-566.

Research output: Contribution to journalArticle

Krutas, DS, Brožek, J, Benešová, V, Zinovyev, AL & Novikov, VT 2016, 'Synthesis of l-lactide supplemented with stage-wise analytical control', Petroleum and Coal, vol. 58, no. 5, pp. 561-566.
Krutas, Daria S. ; Brožek, Jirí ; Benešová, Václova ; Zinovyev, Alex L. ; Novikov, Viktor T. / Synthesis of l-lactide supplemented with stage-wise analytical control. In: Petroleum and Coal. 2016 ; Vol. 58, No. 5. pp. 561-566.
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