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Solvent-Free Method for the Copolymerization of Labile Sugar-Derived Building Blocks into Polyamides.
Wróblewska, Aleksandra A; Stevens, Sander; Garsten, Wessel; De Wildeman, Stefaan M A; Bernaerts, Katrien V.
Afiliación
  • Wróblewska AA; Faculty of Science and Engineering, Biobased Materials, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
  • Stevens S; Faculty of Science and Engineering, Biobased Materials, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
  • Garsten W; Faculty of Science and Engineering, Biobased Materials, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
  • De Wildeman SMA; Faculty of Science and Engineering, Biobased Materials, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
  • Bernaerts KV; Faculty of Science and Engineering, Biobased Materials, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
ACS Sustain Chem Eng ; 6(10): 13504-13517, 2018 Oct 01.
Article en En | MEDLINE | ID: mdl-30319929
This research focuses on the preparation of biobased copolyamides containing biacetalized galactaric acid (GalX), namely, 2,3:4,5-di-O-isopropylidene-galactaric acid (GalXMe) and 2,3:4,5-di-O-methylene-galactaric acid (GalXH), in bulk by melt polycondensation of salt monomers. In order to allow the incorporation of temperature-sensitive sugar-derived building blocks into copolyamides at temperatures below the degradation temperature of the monomers and below their melting temperatures, a clever selection of salt monomers is required, such that the sugar-derived salt monomer dissolves in the other salt monomers. The polymerization was investigated by temperature dependent FT-IR and optical microscopy. The structure of the obtained copolyamides was elucidated by NMR and matrix-assisted laser desorption ionization-time-of-flight (MALDI-TOF) techniques. The positive outcome of this modified polycondensation method depends on the solubility of sugar-derived polyamide salts in polyamide salts of comonomers and the difference between their melting temperatures, however does not depend on the melting temperature of the used sugar-derived monomer. A variety of comonomers was screened in order to establish the underlying mechanisms of the process.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Sustain Chem Eng Año: 2018 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Sustain Chem Eng Año: 2018 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Estados Unidos