Cellulose

, Volume 12, Issue 3, pp 223–231

New Method for Determining the Degree of Cellulose I Crystallinity by Means of FT Raman Spectroscopy

Article

DOI: 10.1007/s10570-004-3885-6

Cite this article as:
Schenzel, K., Fischer, S. & Brendler, E. Cellulose (2005) 12: 223. doi:10.1007/s10570-004-3885-6

Abstract

A Raman crystallinity index – XcRaman – characterizing the degree of crystallinity of partially crystalline cellulose I samples was created, utilizing the crystallinity dependence of CH2 bending modes. For calibration, physical mixtures containing different mass fractions of crystalline cellulose I and its amorphous form were prepared. Crystallinities from 0 to 60% were generated. Relative intensity ratios of the Raman lines I\(_{1481 {cm^-1}}\) and I\(_{1462 {cm^-1}}\) characterizing crystalline and amorphous parts of cellulose I correlated linearly with the mass fraction of crystalline cellulose I of the mixtures. XcRaman values of microcrystalline celluloses of different origins and varying degree of crystallinity correlated reasonably with results obtained from NMR spectroscopy (XcNMR values).

Keywords

Cellulose I Crystallinity FT Raman spectroscopy 

Copyright information

© Springer 2005

Authors and Affiliations

  • Karla Schenzel
    • 1
  • Steffen Fischer
    • 2
  • Erica Brendler
    • 3
  1. 1.Agricultural DepartmentMartin Luther University Halle-WittenbergHalleGermany
  2. 2.Fraunhofer Instiute of Applied Polymer Research IAPGolmGermany
  3. 3.Institute of Analytical ChemistryTechnical University FreibergFreibergGermany

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