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- Publisher
- Springer Journals
- Copyright
- Copyright © 2013 by Springer Science+Business Media Dordrecht
- Subject
- Chemistry; Bioorganic Chemistry; Physical Chemistry; Organic Chemistry; Polymer Sciences
- ISSN
- 0969-0239
- eISSN
- 1572-882X
- DOI
- 10.1007/s10570-013-9866-x
- Publisher site
- See Article on Publisher Site
Abstract
Aqueous suspensions of dispersed Glaucocystis cellulose microfibrils were sonicated at 4 °C for 3 h, using 24 kHz ultrasonic waves. This treatment induced a variety of ultrastructural defects, as the microfibrils became not only shortened, but also presented substantial damage materialized by kinks and subfibrillation. Upon analysis by X-ray diffraction and 13C solid-state NMR spectroscopy, it was found that the initial sample that contained 90 % of cellulose Iα allomorph became, to a large extent, unexpectedly converted into the Iβ phase, while the loss of crystallinity was only moderate during the sonication treatment.
Journal
Cellulose – Springer Journals
Published: Jan 31, 2013