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The fibrillar structure of cellulosic man‐made fibers spun from different solvent systems
Author(s) -
Lenz J.,
Schurz J.,
Wrentschur E.
Publication year - 1988
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1988.070350801
Subject(s) - small angle x ray scattering , transmission electron microscopy , fibril , spinning , materials science , cellulose fiber , fiber , cellulose , scattering , diffraction , crystallography , composite material , cellulosic ethanol , optics , chemical engineering , chemistry , nanotechnology , physics , biochemistry , engineering
The development of new methods of spinning cellulosic fibers requires a better understanding of their fibrillar structure in order to explain their special physical properties. By means of transmission electron microscopy (TEM), light microscopy (LM), small‐angle X‐ray scattering (SAXS), and wide‐angle X‐ray diffraction (WAXD) it is shown that six different kinds of regenerated cellulosic fibers consist of uniform elementary fibrils composed of cellulose‐II crystals. Systematic distinctions between these fiber types are found with regard to the aggregation of the elementary fibrils to nonswelling bundles or clusters. The clusters differ from each other in diameter, length, and frequency of occurrence.