Research Article
Long-Chain Alkylimidazolium Ionic Liquid Functionalization of Cellulose Nanofibers and Their Embedding in HDPE Matrix
Table 1
Cellulose structural parameters obtained from FTIR and XRD spectra.
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CrI is the crystallinity index of the material (determined from the area ratio of the characteristic bands from the FTIR spectra, proportional to the content of cellulose I and cellulose II from the material). LOI is the lateral order index of the material, proportional to the cellulose I content in the fibers (determined from FTIR spectroscopy). Cr is the absolute crystallinity of the material, determined from the XRD diffractogram, as total contribution of the cellulose I and cellulose II anomer. represents the apparent cellulose crystallite dimensions, determined from the XRD diffractogram, relative to that of the defect-free 100% crystalline cellulose I anomer. represents relative proportion of cellulose crystallite interior chains, related to more tight packing of the cellulose architecture. As structure modification and functionalization of cellulose occur, values also increase. |