Polymerization of DL-Lactide induced by Protonated Montmorillonite clay as a solid catalyst: Mechanism study

AUTOR(ES)

Aslya, Elkebir, Harrane, Amine, Belbachir, Mohamed

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

12/02/2016

RESUMO

Maghnite- H+ is Algerian montmorillonite sheet alumino-silicate clay, exchanged with protons (H+). This solid non-toxic catalyst was successfully used as cationic catalyst for the polymerization of D,L-Lactid at 100°C. Interactions between Maghnite-H+ platelets and the monomer (D,L-Lactide) were studied by solid state 1H, 27Al and 29Si NMR spectroscopy. The results show that, the mechanism of the reaction involves both Brønsted and Lewis acid sites on Maghnite surface.

Documentos Relacionados

• Hydrogenation of xylose to xylitol on sponge nickel catalyst: a study of the process and catalyst deactivation kinetics
• Synthesis and characterization of a novel terpolymer based on L-lactide, D,L-lactide and trimethylene carbonate
• UHMWPE-layered silicate nanocomposites by in situ polymerization with tris(pyrazolyl)borate titanium/clay catalyst
• UHMWPE-layered silicate nanocomposites by in situ polymerization with tris(pyrazolyl)borate titanium/clay catalyst
• Catalyst: and solvent-free synthesis of imidazo[1,2-a]pyridines