DASSIN, Stéphane; DUMON, Michel; MÉCHIN, Françoise; PASCAULT, Jean-Pierre

doi:10.1002/pen.11066

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

DASSIN, Stéphane
Ingénierie des Matériaux Polymères [IMP]

DUMON, Michel

Ingénierie des Matériaux Polymères [IMP]
Laboratoire de Chimie des Polymères Organiques [LCPO]

MÉCHIN, Françoise
Ingénierie des Matériaux Polymères [IMP]

Idioma

Article de revue

Este ítem está publicado en

Polymer Engineering and Science. 2002, vol. 42, n° 8, p. 1724-1739

Wiley-Blackwell

Resumen en inglés

Organosilanes were grafted on thermoplastic polyurethanes (TPUs) using an internal mixer or reactive extrusion. The reaction described here proceeds in two stages, with the help of a diisocyanate as a coupling agent to create allophanate junctions between TPU chains and an aminosilane. Such materials could then be crosslinked by a hydrolytic condensation mechanism, resulting in increased thermomechanicalproperties. The starting TPU was at first carefully characterized. Using the plastograph, the different stages (reactions between TPU and diisocyanate, isocyanate-grafted TPU and aminosilane, but also between TPU and aminosilane alone) were then studied separately, together with the influence of several essential parameters (time, temperature, rotating speed, etc.). Optimal conditions for a well-controlled grafting process were defined, and the different ways of crosslinking the TPU chains were compared.< Leer menos

Palabras clave en inglés

thermomechanical properties

hydrolytic condensation

thermoplastic polyurethanes (TPUs)

grafting

alkoxysilanes

Metadatos

Compartir este ítem

Licencia de uso del documento

Thermoplastic polyurethanes (TPUs) with grafted organosilane moieties: A new way of improving thermomechanical behavior

Idioma

Este ítem está publicado en

Resumen en inglés

Palabras clave en inglés

URI

DOI

Orígen

Centros de investigación