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Time-resolved structural studies in fiber processing |
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| Authors: | Christian Burger Shaofeng Ran Dufei Fang David Cookson Kazuyuki Yabuki Yoshihiko Teramoto Philip M. Cunniff P. James Viccaro Benjamin S. Hsiao Benjamin Chu |
| Affiliation: | 1. Dept. of Chemistry, State University of New York at Stony Brook, Stony Brook, NY, USA;2. Australian Nuclear Science and Technology Organisation, Menai NSW, Australia Argonne National Laboratory, Adv. Photon Source, ChemMat CARS, Argonne, IL, USA;3. Toyobo Co. Ltd., Research Center, Katata, Ohtsu, Shiga, Japan;4. U.S. Army, Soldier and Biological Chemical Command, Natick, MA, USA;5. Argonne National Laboratory, Adv. Photon Source, ChemMat CARS, Argonne, IL, USA |
| Abstract: | Time-resolved and off-line synchrotron wide-angle and small-angle x-ray scattering (WAXS and SAXS) was used to study the structure formation in poly-p-phenylenebenzobisoxazole (PBO) fibers during various stages of spinning, coagulation, and heating processes. WAXS data could be explained in terms of liquid-crystalline structures of varying degrees of order. A structure model is proposed that is in accordance with the observed SAXS four-point pattern. |
| Keywords: | high performance polymers fibers spinning WAXS SAXS |