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

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

Keywords

Lactic acid oligomer
Lactide
Recrystallization

ASJC Scopus subject areas

Energy(all)

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title = "Synthesis of l-lactide supplemented with stage-wise analytical control",

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).",

keywords = "Lactic acid oligomer, Lactide, Recrystallization",

author = "Krutas, {Daria S.} and Jir{\'i} Bro{\v z}ek and V{\'a}clova Bene{\v s}ov{\'a} and Zinovyev, {Alex L.} and Novikov, {Viktor T.}",

year = "2016",

month = jan,

day = "1",

language = "English",

volume = "58",

pages = "561--566",

journal = "Petroleum and Coal",

issn = "1337-7027",

publisher = "Vyskumny ustav pre ropu a uhlovodikove plyny (VURUP)",

number = "5",

}

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

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M3 - Article

AN - SCOPUS:85011878838

VL - 58

SP - 561

EP - 566

JO - Petroleum and Coal

JF - Petroleum and Coal

SN - 1337-7027

IS - 5

ER -