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References (19)
-
S. Krimm, A. Tobolsky (1951)
Quantitative x‐ray studies of order in amorphous and crystalline polymers. Quantitative x‐ray determination of crystallinity in polyethyleneJournal of Polymer Science, 7
-
H. Ingersoll (1946)
Fine Structure of Viscose RayonJournal of Applied Physics, 17
-
M. Nelson, C. Conrad (1948)
Effect of Grinding on the Crystallinity of Cellulose Fibers, as Indicated by the Acid-Hydrolysis and Other TechniquesTextile Research Journal, 18
-
R. O’connor, E. Dupre, D. Mitcham (1958)
Applications of Infrared Absorption Spectroscopy to Investigations of Cotton and Modified CottonsTextile Research Journal, 28
-
R. Orr, L. Weiss, H. Moore, James Grant (1955)
Density of Modified Cottons Determined with a Gradient ColumnTextile Research Journal, 25
-
H. Klug (1953)
Quantitative Analysis of Powder Mixtures with Geiger-Counter SpectrometerAnalytical Chemistry, 25
-
K. Ward (1950)
Crystallinity of Cellulose and Its Significance for the Fiber PropertiesTextile Research Journal, 20
-
L. Segal', M. Nelson, C. Conrad (1951)
Experiments on the reduction of the crystallinity of cotton cellulose.The Journal of physical and colloid chemistry, 55 3
-
M. Nelson, V. Tripp (1953)
Determination of the leveling‐off degree of polymerization of cotton and rayonJournal of Polymer Science, 10
-
G. Clark, H. Terford (1955)
Quantitative X-Ray Determination of Amorphous Phase in Wood Pulps as Related to Physical and Chemical PropertiesAnalytical Chemistry, 27
-
H. Klug, L. Alexander (1954)
X-ray diffraction procedures -
L. Loeb, L. Segal' (1955)
The Treatment of Cotton Cellulose with Aqueous Solutions of EthylamineTextile Research Journal, 25
-
P. Hermans, A. Weidinger (1948)
Quantitative X-Ray Investigations on the Crystallinity of Cellulose Fibers. A Background AnalysisJournal of Applied Physics, 19
-
W. Soller (1924)
A New Precision X-ray SpectrometerPhysical Review, 24
-
J. Nichols (1954)
X‐Ray and Infrared Studies on the Extent of Crystallization of PolymersJournal of Applied Physics, 25
-
(1955)
Tutkimuslaitos Tie- doitus -
H. Brown (1951)
Natural and Synthetic High Polymers. 2nd ed. Kurt H. Meyer. New York-London: Interscience, 1950. 915 pp. $15.00 -
H. Philipp, M. Nelson, Hilda Ziifle (1947)
Crystallinity of Cellulose Fibers as Determined by Acid HydrolysisTextile Research Journal, 17
-
K. Palmer, W. Dye, D. Black (1956)
Sugar Crystallization, X-Ray Diffractometer and Microscopic Investigation of Crystallization of Amorphous SucroseJournal of Agricultural and Food Chemistry, 4
- Publisher
- SAGE
- Copyright
- Copyright © 2019 by SAGE Publications
- ISSN
- 0040-5175
- eISSN
- 1746-7748
- DOI
- 10.1177/004051755902901003
- Publisher site
- See Article on Publisher Site
Abstract
An empirical method for determining the crystallinity of native cellulose was studied with an x-ray diffractometer using the focusing and transmission techniques. The influence of fluctuations in the primary radiation and in the counting and recording processes have been determined. The intensity of the 002 interference and the amor phous scatter at 2θ = 18° was measured. The percent crystalline material in the total cellulose was expressed by an x-ray "crystallinity index." This was done for cotton cellulose decrystallized with aqueous solutions containing from 70% to nominally 100% ethylamine. The x-ray "crystallinity index" was correlated with acid hydrolysis crys tallinity, moisture regain, density, leveling-off degree of polymerization values, and infrared absorbance values for each sample. The results indicate that the crystallinity index is a time-saving empirical measure of relative crystallinity. The precision of the crystallinity index in terms of the several crystallinity criteria is given. Based on over 40 samples for which acid hydrolysis crystallinity values were available, the standard error was 6.5%.
Journal
Textile Research Journal – SAGE
Published: Jul 2, 2016