Studies of polymer morphology with 13C inversion recovery cross polarization NMR |
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| Authors: | A. A. Parker J. J. Marcinko Y. T. Shieh C. Shields D. P. Hedrick W. M. Ritchey |
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| Affiliation: | (1) Department of Chemistry, Case Western Reserve University, 44106 Cleveland, OH, USA;(2) Beloit Manhattan Inc., Clarks Summit, PA, USA |
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| Abstract: | Summary Inversion recovery cross polarization (IRCP) NMR was used to study the solid state morphologies of plasticized and neat poly(vinyl butyral-co-vinyl alcohol) (PVB), of polyether polyurethane elastomers (PU), and of low density polyethylene (LDPE). IRCP decay data for these polymers were best fit to a biexponential two-component model modulated by T1 H relaxation. These results clearly display the two-phase nature of these polymers, as well as the potential applicability of the IRCP technique. |
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