Long-Chain Alkylimidazolium Ionic Liquid Functionalization of Cellulose Nanofibers and Their Embedding in HDPE Matrix

Figure 2

FTIR spectra of (a) irradiated IL-treated CelNFs at 25°C and 35°C; (b) neat and irradiated HMIMBF₄; (c) irradiated and neat IL-treated CelNFs at 35°C; and (d) irradiated IL-treated CelNFs at 35°C as such and heated at 230°C. Changes in the spectra pattern related to possible alkylimidazolium grafting to cellulose (c).

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(b)

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(d)