Journal
CARBOHYDRATE RESEARCH
Volume 339, Issue 3, Pages 569-578Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2003.11.012
Keywords
2D FT-IR; cellulose allomorphs; crystallinity; infrared spectroscopy; chemical pulps
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The cellulose structure is a factor of major importance for the strength properties of wood pulp fibers. The ability to characterize small differences in the crystalline structures of cellulose from fibers of different origins is thus highly important. In this work, dynamic FT-IR spectroscopy has been further explored as a method sensitive to cellulose structure variations. Using a model system of two different celluloses, the relation between spectral information and the relative cellulose I-alpha content was investigated. This relation was then used to determine the relative cellulose I-alpha content in different pulps. The estimated cellulose I allomorph compositions were found to be reasonable for both unbleached and bleached chemical pulps. In addition, it was found that the dynamic FT-IR spectroscopy technique had the potential to indicate possible correlation field splitting peaks of cellulose I-beta. (C) 2003 Elsevier Ltd. All rights reserved.
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