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Rodlike Cellulose Whiskers Coated with Surfactant: A Small-Angle Neutron Scattering Characterization
- Source :
- Langmuir; April 2002, Vol. 18 Issue: 8 p3311-3314, 4p
- Publication Year :
- 2002
-
Abstract
- Apolar organic suspensions of rodlike cellulose whiskers modified by a surfactant are investigated by small angle neutron scattering. Guinier and Porod analyses are performed to characterize the increase of cross-sectional radius of gyration observed between organic and aqueous suspensions of whiskers. In addition, a comparison with theoretical curves for fibers with homogeneous rectangular cross sections finally leads to typical cross-sectional dimensions of ca. 120 × 210 Å<SUP>2</SUP> for the modified whiskers in organic solutions while those in water have 88 × 180 Å<SUP>2</SUP> sizes. It is concluded that the modified whiskers are coated with a surfactant layer of 15 Å thickness in a rather folded conformation.
Details
- Language :
- English
- ISSN :
- 07437463 and 15205827
- Volume :
- 18
- Issue :
- 8
- Database :
- Supplemental Index
- Journal :
- Langmuir
- Publication Type :
- Periodical
- Accession number :
- ejs2126068
- Full Text :
- https://doi.org/10.1021/la015511t