Abstract
The solid-state NMR techniques of cross polarization (CP), high power proton decoupling and magic angle sample spinning allow one to study the binding of coupling agents to silica surfaces, γ-mercaptopropyltrimethoxysilane (y -MPTS), γ-aminopropyltriethoxy-silane (γ-APS), γ-glycidoxypropyltrimethoxysilane (γ-GPS), γ-metha-cryloxypropyltrimethoxysilane (γ-MPS) and vinyltriethoxysilane (VTES) were the organosilanes utilized on high-surface-area silica. High resolution solid-state 13C NMR spectra were obtained for coupling agents adsorbed on silica surfaces and for the corresponding coupling agents condensed as bulk polymers. Chemical shifts and line widths of the resonances of the chemically modified silicas are compared to those resonances arising from the bulk organosilanes. The spectra confirm chemical binding of the coupling agent to the silica surface. A graphite-filled epoxy is characterized in terms of molecular motion. In this study 13C spin-lattice relaxation times in the rotating frame of reference (T1ρ) were obtained for the composite.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
H. Ishida and J. L. Koenig, Polym. Eng. Sci., 18, 128 (1978).
A. Pines, M. G. Gibby and J. S. Waugh, J. Chem. Phys., 59, 569 (1973).
E. R. Andrew, A. Bradburry and R. G. Eades, Nature, 182, 1659 (1959).
I. J. Lowe, Phys. Rev., 2, 285 (1959).
J. Schaefer and E. O. Stejskal, J. Am. Chem. Soc, 98, 1031 (1976).
G. E. Maciel, D. W. Sindorf and V. J. Bartuska, J. Chromotography, 205, 438 (1981).
G. R. Hays, A. D. H. Claque, R. Huis, G. Van Der Velden, Appl. Surf. Sci., 10, 247 (1982).
D. E. Leyden, D. S. Kendall, T. G. Waddell, Anal. Chim. Acta., 126, 207 (1981).
I. D. Gay, J. Phys. Chem., 78, 38 (1974).
R. G. Griffin, Anal. Chem., 49, 951A (1977).
C. Chiang, H. Ishida and J. L. Koenig, J. Colloid Interface Sci., 74, 396 (1980).
S. R. Culler, H. Ishida and J. L. Koenig, J. Colloid Interface Sci., accepted.
J. J. Chang, A. Pines, J. J. Fripiat and H. A. Resing, Surface Science, 47, 661 (1975).
K. Dusek, M. Ilavsky and S. Lunak, in “Cross-linking and Networks,” K. Dusek, B. Sedlacek, C. H. Overberger, H. F. Mark and T. G. Fox, eds., John Wiley and Sons, New York (1975) p. 29.
G. Odian, “Principles of Polymerization,” John Wiley and Sons, New York (1981) p. 512.
H. Ishida and J. L. Koenig, J. Colloid Interface Sci., 64, 565 (1978).
D. C. Douglass in “Polymer Characterization by ESR and NMR,” A. E. Woodard and F. A. Bovey, eds., Amer. Chem. Soc, Washington (1980).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1985 Springer Science+Business Media New York
About this chapter
Cite this chapter
Zaper, A.M., Cholli, A., Koenig, J.L. (1985). Applications of Solid-State Magic Angle NMR Spectroscopy to Fiber Reinforced Composites. In: Ishida, H., Kumar, G. (eds) Molecular Characterization of Composite Interfaces. Polymer Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-29084-2_18
Download citation
DOI: https://doi.org/10.1007/978-3-662-29084-2_18
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-27597-9
Online ISBN: 978-3-662-29084-2
eBook Packages: Springer Book Archive