An Empirical Method for Estimating the Degree of Crystallinity of Native Cellulose Using the X-Ray Diffractometer

The results indicate that the crystallinity index is a time-saving empirical measure of relative crystallinity

L. Segal; J.J. Creely; A.E. Martin; C.M. Conrad

2008

Scholarcy highlights

  • An empirical method for determining the crystallinity of native cellulose was studied with an x-ray diffractometer using the focusing and transmission techniques
  • 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 results indicate that the crystallinity index is a time-saving empirical measure of relative crystallinity
  • Based on over 40 samples for which acid hydrolysis crystallinity values were available, the standard error was 6.5%

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