Generalized Indirect Fourier Transformation as a Valuable Tool for the Structural Characterization of Aqueous Nanocrystalline Cellulose Suspensions by Small Angle X-ray Scattering

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• 作者：Heike M. A. Ehmann ; Stefan Spirk ; Ale拧 Doli拧ka ; Tamilselvan Mohan ; Walter G枚ssler ; Volker Ribitsch ; Majda Sfiligoj-Smole ; Karin Stana-Kleinschek
• 刊名：Langmuir
• 出版年：2013
• 出版时间：March 19, 2013
• 年：2013
• 卷：29
• 期：11
• 页码：3740-3748
• 全文大小：465K
• 年卷期：v.29,no.11(March 19, 2013)
• ISSN：1520-5827

文摘

Small angle X-ray scattering (SAXS) is employed to characterize the inner structure and shape of aqueous nanocrystalline cellulose suspensions using the generalized indirect Fourier transformation (GIFT). The use of the GIFT approach provides a single fitting procedure for the determination of intra- and interparticle interactions due to a simultaneous treatment of the form factor P(q) and the structure factor S(q). Moreover, GIFT allows for the determination of particle charges and polydispersity indices. As test material, aqueous nanocrystalline cellulose suspensions (aNCS) prepared by the H₂SO₄ route have been investigated and characterized (SAXS, dynamic light scattering, zeta potential).