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Small-angle X-ray scattering of long-period structures forming bundles |
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| Authors: | Masatoshi Shioya Tomomi Kawazoe Shinichi Sakurai Takeshi Kikutani |
| Affiliation: | a Department of Organic and Polymeric Materials, Tokyo Institute of Technology, S8-34, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan b Japan Chemical Innovation Institute, 3-29-8 Kitasenzoku, O-taku, Tokyo 145-0062, Japan c Department of Polymer Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan d Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan |
| Abstract: | Small-angle X-ray scattering (SAXS) patterns have been calculated based on a structure model, which consisted of the bundles of long-period structures. The proposed model has produced various scattering patterns of polymers, such as the equatorial, layer line, four-spot, droplet-shaped and triangular scattering. The 0.5th order scattering has arisen when the disorder in or between the long-period structures was large even though the structure did not have the periodicity directly related to the scattering maximum. A slight decrease in the disorder due to slip between the long-period structures has accounted for the sudden change of the SAXS pattern of a poly(ethylene terephthalate) fiber from the four-spot to the layer line scattering which was caused by a slight tensile deformation. |
| Keywords: | Small-angle X-ray scattering Poly(ethylene terephthalate) fiber Tensile deformation |
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