Abstract
| - The variations in morphology and local structure in a series of tin fluorophosphate glass-polyethylene (TFPPE) hybrids were investigated using solid-state 1H, 13C, and 31P MAS NMR.The combination of direct polarization 13C MAS NMR experiments with various delay timesand carbon spin−lattice relaxation filtered cross-polarized MAS NMR experiments allowedquantification of the monoclinic, orthorhombic, amorphous, and intermediate phases in thelow-density polyethylene (LDPE) component of the TFPPE hybrids. These 13C MAS NMRresults showed an increase in the crystallinity with the addition of tin fluorophosphate (TFP)glass into the hybrids. The 31P MAS NMR spectra reveal major changes in the local structureof the TFP glass component, with several new phosphorus species being formed during theproduction of the hybrid. The results of the 1H-13C and 1H-31P 2D wide line spectroscopyexperiments demonstrate that all of these new phosphorus species are spatially correlatedwith the two new proton species that appear in the 1H MAS NMR of the TFPPE hybrids.There is no evidence of correlation between these new phosphorus species and the methyleneprotons of the LDPE polymer component.
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