Electron diffraction techniques have been employed in the study of crystallite orientation within fibrils of cellulose removed from cotton and ramie fibers. It was found that the degree of orientation of crystallites within fibrils representing ten cotton varieties did not deviate appreciably from one another; however, the alpha angle determined for ramie was significantly lower than that determined for the cottons.
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2.
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3.
Goppel, J.M. , The Orientation of Rubber Crystallites in Stretched Samples, Appl. Sci. Res.A-1, 18-26 (1947).
4.
Hebert, J.J. , Is the Spiral Angle of Cotton Constant?Textile Res. J.37, 57-58 (1967).
5.
Hebert, J.J. , Giardina, R., Mitcham, D., and Rollins, M.L., The Effect of Convolutions on Orientation Measurements in Cotton Fibers, Textile Res. J.40, 126-129 (1970).
6.
Jeffries, R. , Jones, D.M., Roberts, J.G., Selby, K., Simmens, S.C., and Warwicker , J.O., CurrentIdeas on the Structure of Cotton, Cellulose Chem. Technol.3, 255-274 (1969).
7.
Warwicker, J.O. , Jeffries, R., Colbran, R.L., and Robinson , R.N., Shirley Inst. Pamphlet, 93 (1966).