Publication: Bacterial cellulose/triethanolamine based ion-conducting membranes
Loading...
Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Type
Article
Access right
Acesso restrito
Abstract
New bacterial cellulose (BC)-triethanolamine (TEA) ion-conducting membranes have been prepared and characterized. The samples were obtained by soaking BC membranes in triethanolamine aqueous solutions and drying. The scanning electron microscopy pictures revealed that the incorporation of TEA in BC membranes covers the cellulose microfibrils. Raman spectra exhibited BC and TEA characteristic group frequencies and thermal analysis evidenced an influence of TEA content on the sample thermal stability. The ion-conductivity as a function of the temperature showed an Arrhenius behavior increasing from 1.8 x 10(-5) S/cm at room temperature to 7.0 x 10(-4) S/cm at 80 A degrees C for the BC-TEA 1 M sample.
Description
Keywords
Bacterial cellulose, Ion-conduction, Triethanolamine, Membranes
Language
English
Citation
Cellulose. Dordrecht: Springer, v. 21, n. 3, p. 1975-1985, 2014.
