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Madison, WI 53726-2398
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Title: Crystallinities of Nanocrystalline and Nanofibrillated Celluloses by FT-Raman Spectroscopy

Source: In: Proceedings of the 2010 TAPPI International Conference on Nanotechnology for the Forest Product Industry, Sept 27-29, 2010 Espoo, Finland.

Author(s)Agarwal, Umesh P.; Reiner, Richard S.; Filpponen, Ilari; Isogai, Akira; Argyropoulos, Dimitris S.

Publication Year: 2010  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4709-2A

Abstract: Recently, a new method based on FT-Raman spectroscopy was proposed to determine cellulose I crystallinity. It was reported that in the Raman spectrum of cellulosic materials the peak intensity ratio of 380 and 1,096 cm-1 bands can be used to determine cellulose crystallinity. In that study, Raman crystallinities of the calibration set Whatman CC31 samples were found to be greatly correlated with the WAXS data (Segal-WAXS-21°; coefficient of determination R2 = 0.98). Average standard error calculated from replicate Raman acquisitions indicated that the Raman crystallinity model was highly reliable. In the present investigation, the Raman and WAXS methods were applied to nanocrystalline and nanofibrillated celluloses. Calculated crystallinities by the two methods were found to be significantly different.

Keywords: Cellulose, cellulose chemistry, nanocrystals, crystallization, nanotechnology, nanostructured materials, Raman spectroscopy, chemical composition, composite materials, fibrous composites, nanofibers, crystalline cellulose, cellulose fibers, nanocellulose, nanocomposites, standard error, crystallinity, WAXS method

Publication Review Process: Non-Refereed (Other)

File size: 1,945 kb(s)

Date posted: 12/05/2010
RITS Product ID: 36612
Current FPL Scientist associated with this product
Agarwal, Umesh P.
Research Chemist
  

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