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Relation of certain infrared bands to cellulose crystallinity and crystal lattice type. Part II. A new infrared ratio for estimation of crystallinity in celluloses I and II
Abstract
A new infrared ratio, α1372 cm. −1/α2900 cm. −1, is proposed for measuring crystallinity in cellulosic materials. The advantage of this ratio over others which have been used is that it can be applied to both celluloses I and II and, therefore, to samples containing a mixed lattice. Two series of samples, encompassing a wide range of crystallinity, were prepared from highly crystalline celluloses I and II. The infrared ratios of these samples were compared with crystallinity values from x-ray diffractograms and density measurements, and with accessibility data from moisture sorption. It was shown that the new infrared ratio ranks samples of both lattice types, as well as partly mercerized cottons, in the same order as do x-ray, density, and moisture sorption data. The correlation of the new infrared ratio with accessibility, derived from moisture regain, is better than with crystallinities from either x-ray or density measurements. Reasons for this are suggested.
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Cited by
Abidi, N., Cabrales, L., & Haigler, C. H. (2014) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2013.01.074 · Cited by 658
Regenerating cellulose from ionic liquids for an accelerated enzymatic hydrolysis
Zhao, H., Jones, C. L., Baker, G. A., Xia, S., Olubajo, O., & Person, V. N. (2009) · Journal of Biotechnology · doi:10.1016/j.jbiotec.2008.08.009 · Cited by 492
Tan, Y. T., Ngoh, G. C., & Chua, A. S. M. (2019) · Bioresource Technology · doi:10.1016/j.biortech.2019.02.010 · Cited by 325
Enhanced enzymatic hydrolysis of sugarcane bagasse by N-methylmorpholine-N-oxide pretreatment
Kuo, C.-H., & Lee, C.-K. (2009) · Bioresource Technology · doi:10.1016/j.biortech.2008.07.001 · Cited by 156
Ilharco, L. M., Garcia, A. R., Lopes da Silva, J., & Vieira Ferreira, L. F. (1997) · Langmuir · doi:10.1021/la962138u · Cited by 137
Metadata
- Authors
- Nelson, M. L., & O'Connor, R. T.
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 1964-05
- Volume
- 8
- Issue
- 3
- Pages
- 1325-1341
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2061037898
- Cited by
- 941
- References
- 0
- FWCI
- 2.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- Nelson, M. L., & O'Connor, R. T. (1964). Relation of certain infrared bands to cellulose crystallinity and crystal lattice type. Part II. A new infrared ratio for estimation of crystallinity in celluloses I and II. Journal of Applied Polymer Science. https://doi.org/10.1002/app.1964.070080323
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