Characterization of macromolecular orientation in κ-carrageenan fibers using polarized Fourier-transform infrared spectroscopy.
Saved in:
| Title: | Characterization of macromolecular orientation in κ-carrageenan fibers using polarized Fourier-transform infrared spectroscopy. |
|---|---|
| Authors: | Kong, Lingyan1, Stapleton, Joshua J.2, Ziegler, Gregory R.2,3 grz1@psu.edu |
| Source: | Vibrational Spectroscopy. Jan2018, Vol. 94, p61-65. 5p. |
| Subjects: | Carrageenans, Macromolecules, Optical polarization, Focused ion beams, Fourier transform infrared spectroscopy, X-ray diffraction |
| 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. [ABSTRACT FROM AUTHOR] |
| Copyright of Vibrational Spectroscopy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 127701504 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Characterization of macromolecular orientation in κ-carrageenan fibers using polarized Fourier-transform infrared spectroscopy. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kong%2C+Lingyan%22">Kong, Lingyan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Stapleton%2C+Joshua+J%2E%22">Stapleton, Joshua J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ziegler%2C+Gregory+R%2E%22">Ziegler, Gregory R.</searchLink><relatesTo>2,3</relatesTo><i> grz1@psu.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Vibrational+Spectroscopy%22">Vibrational Spectroscopy</searchLink>. Jan2018, Vol. 94, p61-65. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Carrageenans%22">Carrageenans</searchLink><br /><searchLink fieldCode="DE" term="%22Macromolecules%22">Macromolecules</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+polarization%22">Optical polarization</searchLink><br /><searchLink fieldCode="DE" term="%22Focused+ion+beams%22">Focused ion beams</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: 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. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Vibrational Spectroscopy is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=127701504 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.vibspec.2017.12.004 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 61 Subjects: – SubjectFull: Carrageenans Type: general – SubjectFull: Macromolecules Type: general – SubjectFull: Optical polarization Type: general – SubjectFull: Focused ion beams Type: general – SubjectFull: Fourier transform infrared spectroscopy Type: general – SubjectFull: X-ray diffraction Type: general Titles: – TitleFull: Characterization of macromolecular orientation in κ-carrageenan fibers using polarized Fourier-transform infrared spectroscopy. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kong, Lingyan – PersonEntity: Name: NameFull: Stapleton, Joshua J. – PersonEntity: Name: NameFull: Ziegler, Gregory R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 09242031 Numbering: – Type: volume Value: 94 Titles: – TitleFull: Vibrational Spectroscopy Type: main |
| ResultId | 1 |
