We thank Rona Pitschke for technical assistance with electron microscopy. Critical reading of the manuscript by G. Ozin is gratefully acknowledged. We are specially grateful for the “square-table” discussions with Erich C. The Max-Planck Society is acknowledged for financial support.
Silica Nanocasting of Simple Cellulose Derivatives: Towards Chiral Pore Systems with Long-Range Order and Chiral Optical Coatings†
Article first published online: 7 OCT 2003
Copyright © 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 13, Issue 10, pages 763–766, October, 2003
How to Cite
Thomas, A. and Antonietti, M. (2003), Silica Nanocasting of Simple Cellulose Derivatives: Towards Chiral Pore Systems with Long-Range Order and Chiral Optical Coatings. Adv. Funct. Mater., 13: 763–766. doi: 10.1002/adfm.200304383
- Issue published online: 7 OCT 2003
- Article first published online: 7 OCT 2003
- Manuscript Accepted: 18 JUN 2003
- Manuscript Received: 21 MAR 2003
Aqueous solutions of hydroxypropyl cellulose with cholesteric superstructures were employed as templates in a silica nanocasting process, and the resulting pore structures were characterized by polarization microscopy, circular dichroism, X-ray scattering, transmission electron microscopy, and sorption measurements. Whereas the local pore architecture corresponds to a cast of single cellulose strands and their statistical aggregates, the averaged structure on larger scales keeps the cholesteric character, with the cholesteric pitch just slightly shortened.