Characterization of macromolecular orientation in κ-carrageenan fibers using polarized Fourier-transform infrared spectroscopy

Show simple item record

dc.rights.license Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.contributor.author Kong, Lingyan
dc.contributor.author Stapleton, Joshua J.
dc.contributor.author Ziegler, Gregory R.
dc.date.accessioned 2020-04-29T16:04:03Z
dc.date.available 2020-04-29T16:04:03Z
dc.date.issued 2018-01
dc.identifier.citation Kong, L., Stapleton, J., Ziegler, G. (2018): Characterization of macromolecular orientation in κ-carrageenan fibers using polarized Fourier-transform infrared spectroscopy. Vibrational Spectroscopy, vol. 94. en_US
dc.identifier.uri http://ir.ua.edu/handle/123456789/6756
dc.description.abstract In the current study, polarized infrared (IR) microspectroscopy was employed to characterize the macromolecular orientation in wet-spun and stretched κ-carrageenan fibers. The fibers were shown to be well oriented by X-ray diffraction, suggesting that the κ-carrageenan molecules were generally aligned along the fiber axis direction. Longitudinal fiber pieces of about 10 μm thick were obtained by focused ion beam (FIB) micromilling. The fiber pieces were examined by polarized IR in transmission mode. Several bands, including those characteristic of κ-carrageenan at 845 and 930 cm⁻¹, were polarization-dependent, demonstrating polarized IR as a useful tool to evaluate macromolecular orientation in carrageenan fibers. Band assignments were discussed by considering the general alignment of molecules and the polarization dependence of vibration modes, and our results agreed well with band assignments from previous reports. en_US
dc.format.mimetype application/pdf en_US
dc.language English en_US
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Macromolecular orientation en_US
dc.subject ê-carrageenan fiber en_US
dc.subject X-ray fiber diffraction en_US
dc.subject polarized 36 infrared microspectroscopy en_US
dc.subject Fourier transform infrared spectroscopy en_US
dc.subject focused ion beam en_US
dc.title Characterization of macromolecular orientation in κ-carrageenan fibers using polarized Fourier-transform infrared spectroscopy en_US
dc.type text en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

Search DSpace


Browse

My Account