Optimum conditions for the synthesis of linear polylactic acid-based urethanes

Jenö Borda, Ildikó Bodnár, S. Kéki, László Sipos, M. Zsuga

Research output: Article

28 Citations (Scopus)

Abstract

The reactions of polylactic acid (PLA) oligomers and isocyanates (4,4′-diphenylmethane diisocyanate and toluene diisocyanate) are reported. The effects of the reaction conditions, that is, the reaction time, reaction temperature, molar ratios, isocyanates, and catalyst, on the number-average molecular weight (Mn) are demonstrated. The optimum reaction conditions are determined by the synthesis of relatively high Mn PLA-based linear polyurethanes. The structure of the polymer samples was investigated with dynamic light scattering, 1H NMR, IR, and matrix-assisted laser-desorption ionization time-of-flight mass spectroscopy (MALDI-TOF MS).

Original languageEnglish
Pages (from-to)2925-2933
Number of pages9
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume38
Issue number16
DOIs
Publication statusPublished - aug. 15 2000

Fingerprint

Isocyanates
Urethane
Toluene 2,4-Diisocyanate
Polyurethanes
Acids
Dynamic light scattering
Oligomers
Ionization
Toluene
Desorption
Polymers
Molecular weight
Nuclear magnetic resonance
Spectroscopy
Catalysts
Lasers
Temperature
poly(lactic acid)
4,4'-diphenylmethane diisocyanate

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Optimum conditions for the synthesis of linear polylactic acid-based urethanes. / Borda, Jenö; Bodnár, Ildikó; Kéki, S.; Sipos, László; Zsuga, M.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 38, No. 16, 15.08.2000, p. 2925-2933.

Research output: Article

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AU - Bodnár, Ildikó

AU - Kéki, S.

AU - Sipos, László

AU - Zsuga, M.

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