Characterization of chemically modified wood fibers using FTIR spectroscopy for biocomposites

Jae Gyoung Gwon, Sun Young Lee, Geum Hyun Doh, Jung Hyeun Kim

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Chemical modifications of wood fibers (LignocelVR C120) were performed for biocomposite applications, and chemically modified wood fibers were analyzed by FTIR spectroscopy. NaOH treatment showed band shifts from Cell-I to Cell-II in FTIR spectra from 2902 cm-1, 1425 cm-1, 1163 cm -1, 983 cm-1, and 897 cm-1 to 2894 cm -1, 1420 cm-1, 1161 cm-1, 993 cm-1, and 895 cm-1 and the change in peak height at 1111 cm-1 and 1059 cm-1 assigned for Cell-I structure. Silane treatment showed peak changes at 1200 cm-1 assigned as SiAOAC band, at 765 cm -1 assigned as SiAC symmetric stretching bond, at 700 cm-1 assigned as SiAOASi symmetric stretching, and at 465 cm-1 assigned as SiAOAC asymmetric bending. Benzoyl treatment resulted in an increase in the carbonyl stretching absorption at 1723 cm-1 and in band characteristics of aromatic rings (1604 cm-1 and 710 cm-1) and a strong absorption at 1272 cm-1 for CAO band in aromatic ring.

Original languageEnglish
Pages (from-to)3212-3219
Number of pages8
JournalJournal of Applied Polymer Science
Issue number6
StatePublished - 15 Jun 2010


  • Coupling agent
  • Crystalline structure
  • FTIR
  • Hydrophilic polymer
  • NaOH


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