Abstract
The condensation reaction between hydroxyl terminated polybutadiene and an uritonimine modified 4, 4′ diphenylmethane diisocyanate (liquid MDI) was carried out by reactive extrusion in the presence of γ propyl trietoxy amino silane treated glass-beads and polystyrene. Reactants were selected having a surface tension favoring the glass bead coating using the spreading coefficient concept. FTIR, SEC (size exclusion chromatography) and rheological analysis of the resultant material showed that condensation reaction had occurred leading to crosslinked Polyurethane located principally around the glass beads.
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Taha, M., Gérard, J.F. & Maazouz, A. In-situ thermoset polyurethane coating of glass beads dispersed in polystyrene by reactive extrusion. Journal of Materials Science 34, 4341–4346 (1999). https://doi.org/10.1023/A:1004691912550
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DOI: https://doi.org/10.1023/A:1004691912550