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Preparation of sheath–core bicomponent composite ion‐exchange fibers and their properties
Author(s) -
Ding ZhiJia,
Qi Lu
Publication year - 2008
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.27772
Subject(s) - polypropylene , composite number , differential scanning calorimetry , materials science , scanning electron microscope , polystyrene , core (optical fiber) , ion exchange , composite material , synthetic fiber , fourier transform infrared spectroscopy , protein filament , polymer chemistry , chemical engineering , fiber , polymer , ion , chemistry , organic chemistry , engineering , thermodynamics , physics
Based on sheath–core bicomponent composite ion‐exchange fibers with modified polystyrene and modified polypropylene, composite fibers were further crosslinked and sulfonated with chlorosulfonic acid to produce strongly acidic cation‐exchange fibers. The optimal technology of the obtained fibers was examined, and the structures of the fibers were investigated with Fourier transform infrared spectrophotometry, differential scanning calorimetry, and so forth. The properties were measured with chemical titration, filament strength instrumentation, scanning electron microscopy, and so forth. The results showed that cation‐exchange fibers with better mechanical properties and a higher exchange capacity were obtained, and they had higher practicability. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008