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Baltisberger, JH

1989

 

Polyethylene Crystallinity From Static, Solid-State NMR Spectra

Hughes, C.D.; Sethi, N.K.; Baltisberger, J.H. and Grant, D.M.
Macromolecules, 22, 2551, 1989. Funded by US Department of Energy.

A new method for determining the crystallinity of linear polyethylene (LPE) utilizing static, solid state C-13 Nuclear Magnetic Resonance (NMR) spectroscopy and computer lineshape simulation is described. Good agreement between the crystallinity measured by this method and a standard method was found. The computer simulation of the experimental spectrum also reflects the degree of gauche and trans chain conformations in the amorphous region of the sample.