Solid-State NMR of Polymers

Max-Planck-Institut fur Polymerforschung, Postfach 3148, D-5S021 Mainz, Germany 

Polymer Spectroscopy. Edited by Allan H. Fawcett 1996 John Wiley A Sons Ltd 

Progress in multidimensional solid-state NMR has been hampered by experimental and conceptual difficulties, but these are now overcome [11-14]. This chapter briefly outlines some of the main concepts and illustrates the information avaUable from multidimensional solid-state NMR spectra concerning polymer structure and dynamics through experimental examples selected from the author s laboratory. 

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Report 127 Polymers in Medical Applications, B.J. Lambert and F.-W. Tang, Guidant Corp., and W.J. Rogers, Consultant. Report 128 Solid State NMR of Polymers, PA. Mirau,... 

B. Blumich, P. Blunder, K. Saito 1998, in Solid State NMR of Polymers, (vol. 84), eds. I. Ando, T. Asakura, Studies in Physical and Theoretical Chemistry, Elsevier Science, Amsterdam, (pp.) 123— 163. 

I. Ando and T. Asakura, Solid State NMR of Polymers, Elsevier, Amsterdam, 1998. 

Proton and fluorine are the most frequently studied nuclei in the solid state NMR of polymers. However, useful information can be obtained from deuterium resonance, (2H I = 1). In the presence of nuclei with spin I > 1/2, which possess a quadrupolar moment, the most dominant interaction occurs between the quadrupolar moment and an electric field gradient tensor V, generated by the C—D bonding electrons. Consequently, the only dominant interaction, besides Hz (Eq. (1)), will be described by the quadrupolar Hamiltonian, which for a single spin has the form ... 

Ando, I. Asakura, T. Solid State NMR of Polymers Elsevier London, 1998. 

T. Takayama, has reviewed research works on polysilanes and copolymers of silanes and siloxanes. T. Takayama, Solid State NMR of Polymers, 1. Ando and T. Asakura eds., Elsevier Science, Amsterdam, 1998, p. 613. 

The next milestone, in the history of NMR [Frel], was the extension of the NMR spectrum to more than one frequency coordinate. It is called multi-dimensional spectroscopy and is a form of nonlinear spectroscopy. The technique was introduced by Jean Jeener in 1971 [Jeel] with two-dimensional (2D) NMR. It was subsequently explored systematically by the research group of Richard Ernst [Em 1 ] who also introduced Fourier imaging [Kuml]. Today such techniques are valuable tools, for instance, in the structure elucidation of biological macromolecules in solution in competition with X-ray analysis of crystallized molecules as well as in solid state NMR of polymers (cf. Fig. 3.2.7) [Sch2]. 

Chal C. Chang and R.A. Komoroski, in Solid State NMR of Polymers, ed. L. Mathias, Plenum... 

Solid State NMR of Polymers, edited by I. Ando and T. Asakura Studies in Physical and Theoretical Oiemistiy, Vol. 84 >1998 Elsevier Science B.V. All righte reserved... 

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