NDLI: Chemical modifications and characteristic changes in bacterial cellulose treated with different media

Content Provider	Springer Nature Link
Author	Wu, Jian Zheng, Yudong Yang, Zhou Cui, Qiuyan Wang, Qiaoli Gao, Shuang Ding, Xun
Copyright Year	2012
Abstract	Bacterial cellulose membranes have attracted a great deal of attention as novel biomedical materials. In this paper, bacterial cellulose was treated with acidic, alkaline, and redox solutions to investigate the subsequent changes in the characteristics of the cellulose. The chemical structure, crystalline state, water-holding capacity, and micromorphology of each modified BC were characterized by FTIR, SEM, and XRD. After these treatments, the intermolecular or intramolecular hydrogen bonds of the BC were broken and the water bound to the BC was released from the BC hydrogel. During these processes, the crystallinity and surface morphology of the BC were also modified. Meanwhile, the crystalline form of the BC changed from cellulose I to II in alkaline medium. In particular, the BC nanofiber hydrogel broke into floccules when treated with highly concentrated NaOH solution at a temperature of −5 °C, but these floccules congregated into a bulk state again after removing the NaOH.
Starting Page	1
Ending Page	8
Page Count	8
File Format	PDF
ISSN	10229760
Journal	Journal of Polymer Research
Volume Number	19
Issue Number	9
e-ISSN	15728935
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-08-15
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bacterial cellulose Fibers Structure Modification Morphology Industrial Chemistry/Chemical Engineering Characterization and Evaluation of Materials Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Polymers and Plastics

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