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Materiale Plastice
https://doi.org/10.37358/Mat.Plast.1964

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OSIM Nr. R102356
ISSN 0025-5289
ISSN 2668-8220 (online)
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Materiale Plastice, Volume 45, Issue 1, pp. (2008)




Synthesis of a New Mannich Polyether Polyol with Isocyanuric Structure


Abstract:
The paper presents the synthesis and characterisation of a new Mannich polyether polyol with high nitrogen content and thermostable isocyanuric structure. The synthesis was performed by the alkoxylation in the absence of any catalyst of a Mannich base obtained by the reaction of cyanuric acid with a Mannich precursor reagent 1,3-oxazolidine. The Mannich polyol was characterised by 1H NMR and 13C NMR, infrared spectroscopy and by the determination of some usual characteristics such as hydroxyl number, viscosity, amine echivalent, water content. The main application of this polyol is the production of “spray” rigid polyurethane foams with higher thermostability and inherent flame retardancy properties. Keyword: 1,3-oxazolidine; isocyanuric Mannich polyether polyol; rigid polyurethanic foams



Issue: 2008 Volume 45, Number 1
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