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 language | English |
|---|---|
| Pages (from-to) | 561-566 |
| Number of pages | 6 |
| Journal | Petroleum and Coal |
| Volume | 58 |
| Issue number | 5 |
| Publication status | Published - 1 Jan 2016 |
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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 journal › Article
}
TY - JOUR
T1 - Synthesis of l-lactide supplemented with stage-wise analytical control
AU - Krutas, Daria S.
AU - Brožek, Jirí
AU - Benešová, Václova
AU - Zinovyev, Alex L.
AU - Novikov, Viktor T.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - 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).
AB - 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).
KW - Lactic acid oligomer
KW - Lactide
KW - Recrystallization
UR - http://www.scopus.com/inward/record.url?scp=85011878838&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85011878838&partnerID=8YFLogxK
M3 - Article
VL - 58
SP - 561
EP - 566
JO - Petroleum and Coal
JF - Petroleum and Coal
SN - 1337-7027
IS - 5
ER -