Preparation and characterization of alkoxysilane functionalized isocyanurates

Alkoxysilane functionalized isocyanurates were prepared from hexamethylene diisocyanate (HDI) isocyanurate and 3-aminopropyltriethoxysilane. The reactants and functionalized isocyanurate were characterized by 1H, 13C and 29Si NMR, IR and electrospray ionization-mass spectrometry. Two-dimensional NMR...

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Bibliographic Details
Published in:Polymer (Guilford) 2000-01, Vol.41 (1), p.57-71
Main Authors: Ni, H., Aaserud, D.J., Simonsick Jr, W.J., Soucek, M.D.
Format: Article
Language:English
Subjects:
Alkoxysilane
Applied sciences
Exact sciences and technology
Isocyanurates
Organic polymers
Physicochemistry of polymers
Polycondensation
Polyurethane
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Alkoxysilane functionalized isocyanurates were prepared from hexamethylene diisocyanate (HDI) isocyanurate and 3-aminopropyltriethoxysilane. The reactants and functionalized isocyanurate were characterized by 1H, 13C and 29Si NMR, IR and electrospray ionization-mass spectrometry. Two-dimensional NMR was necessary to accurately assign the proton and carbon spectra for both the reactants and functionalized products. The composition of the HDI isocyanurate was a mixture of oligomers ranging from two to three HDI monomers. The functionalization reaction was performed neat, and as a function of dilution. As expected, substitution on the isocyanurate becomes more uniform with increasing solvent content.
ISSN:0032-3861
1873-2291
DOI:10.1016/S0032-3861(99)00160-3