Scrutinizing the Nanostructural and Nanomechanical Features of Regenerated Cellulose Ultrafiltration Membranes
DOI:
https://doi.org/10.6000/1929-6037.2015.04.01.4Keywords:
Ultrafiltration membranes, Atomic force microscopy, Quantitative nanomechanical mapping, Raman spectroscopy, Nanostructural properties, Nanomechanical properties, Molecular weight cut-off.Abstract
Ultrafiltration (UF) membranes have been widely used for many separation processes in which high performance is required. Commercial regenerated cellulose UF membranes with variable molecular weight cut-offs were characterized by high performance atomic force microscopy (AFM) using the novel quantitative nanomechanical mapping mode and the versatility of its signal channels towards nanoscale features elucidation of the materials surface. In addition, Raman spectroscopy was applied in order to investigate some possible chemical behavior changes associated with the UF membranes’ cut-offs. Overall, the results showed that the proposed AFM method was reliable to gain qualitative and quantitative data at unprecedented nanoscale resolution and such information can be used to distinguish UF membranes according to their specific molecular weight cut-offs and properties even on situations in which the molecular behavior were not influenced by the UF membrane’ cut-off. This approach can be useful on quality control procedures of researchers and manufacturers producing or modifying these polymeric materials.
References
Singh N, Chen Z, Tomer N, Wickramasinghe SR, Soice N, Husson SM. Modification of regenerated cellulose ultrafiltration membranes by surface-initiated atom transfer radical polymerization. J Memb Sci 2008; 311: 225-34. http://dx.doi.org/10.1016/j.memsci.2007.12.036 DOI: https://doi.org/10.1016/j.memsci.2007.12.036
Phillips AT, Signs MW. Desalting, concentration, and buffer exchange by dialysis and ultrafiltration. In: Current Protocols in Protein Science. John Wiley & Sons, Inc. 2005. http://dx.doi.org/10.1002/0471140864.ps0404s38 DOI: https://doi.org/10.1002/0471140864.ps0404s38
Cornelissen ER, van den Boomgaard Th, Strathmann H. Physicochemical aspects of polymer selection for ultrafiltration and microfiltration membranes. Colloid Surfaces A 1998; 138: 283-9. http://dx.doi.org/10.1016/S0927-7757(96)03862-9 DOI: https://doi.org/10.1016/S0927-7757(96)03862-9
Kallioinen M, Pekkarinen M, Mänttäri M, Nuortila-Jokinen J, Nyström M. Comparison of the performance of two different regenerated cellulose ultrafiltration membranes at high filtration pressure. J Memb Sci 2007; 294: 93-102. http://dx.doi.org/10.1016/j.memsci.2007.02.016 DOI: https://doi.org/10.1016/j.memsci.2007.02.016
Barbosa EF, Silva LP. Nanoscale characterization of synthetic polymeric porous membranes: Scrutinizing their stiffness, roughness, and chemical composition. J Memb Sci 2012; 407-408: 128-35. http://dx.doi.org/10.1016/j.memsci.2012.03.025 DOI: https://doi.org/10.1016/j.memsci.2012.03.025
Young TJ, Monclus MA, Burnett TL, Broughton WR, Ogin SL, Smith PA. The use of the PeakForce™ quantitative nanomechanical mapping AFM-based method for high-resolution Young’s modulus measurement of polymers. Meas Sci Technol 2011; 22: 125703. http://dx.doi.org/10.1088/0957-0233/22/12/125703 DOI: https://doi.org/10.1088/0957-0233/22/12/125703
Silva LP, Rech, EL. Unravelling the biodiversity of nanoscale signatures of spider silk fibres. Nat Commun 2013; 4: 3014. http://dx.doi.org/10.1038/ncomms4014 DOI: https://doi.org/10.1038/ncomms4014
Silva LP, Rech, EL. Scrutinizing the datasets obtained from nanoscale features of spider silk fibres. Scientific Data 2014; 140040. DOI: https://doi.org/10.1038/sdata.2014.40
Hamad WY, Eichhorn S. Deformation micromechanics of regenerated cellulose fibers using Raman spectroscopy. J Eng Mater Technol 1997; 119: 309-13. http://dx.doi.org/10.1115/1.2812262 DOI: https://doi.org/10.1115/1.2812262
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