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Cellulose

, Volume 22, Issue 1, pp 45–52 | Cite as

The S3 layer isolated from carboxymethylated cellulose wood fibers

  • Goeun Sim
  • Theo G. M. van de VenEmail author
Original Paper
  • 244 Downloads

Abstract

The innermost S3 layer is isolated from highly swollen, carboxymethylated cellulose wood fibers (CMF). The isolation is attempted by applying gentle magnetic stirring, ultrasonication, and acid hydrolysis, where each treatment has caused the formation of largely variable fiber morphologies. The S3 layer can be partially or completely isolated from CMF by applying gentle shear or a mild acid hydrolysis. The S3 layer isolated from CMF is highly swollen with a volume 5–10 times its original value, and has microfibril angles between 50° and 90°. Surface carboxylates on the S3 microfibrils are available for further chemical modifications. Dominant right handedness is observed from 3D reconstructed confocal microscopic images. When air-dried from water, the S3 layer collapses completely onto the substrate, giving an average layer thickness of 83–140 nm.

Keywords

S3 layer Carboxymethylated fibers Ultrastructure of the wood cell wall 

Notes

Acknowledgments

This work was supported by an NSERC Industrial Research Chair supported by FPInnovations, by the NSERC Green Fibre Network, and the FQRNT Centre for Self-Assembled Chemical Structures. Special thanks to Dr. Md Nur Alam, Mr. Louis Godbout, Dr. Mohini Ramkaran at the CSACS Scanning Probe Microscopy group, Dr. Elke Küster-Schöck at McGill Cell Imaging and Analysis Network, and Dr. Rima Wazen at the University of Montréal SEM facility.

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Department of Chemistry, Pulp and Paper Research CentreMcGill UniversityMontrealCanada
  2. 2.Centre for Self-Assembled Chemical StructuresMcGill UniversityMontrealCanada

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