Nanocomposites of Cellulose For Medical Application. Asif Rasheed Lecturer, Department of Chemistry University of Wisconsin, Whitewater 800 West Main Street, Whitewater, WI 53190 email@example.com. Cellulose:. The most abundant, biodegradable and biocompatible polymer
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Lecturer, Department of Chemistry
University of Wisconsin, Whitewater
800 West Main Street, Whitewater, WI 53190
The most abundant, biodegradable and biocompatible polymer
Applications include fiber, paper, membrane, polymer and paint industries
Strong intra and intermolecular hydrogen bonding hence difficult for processing
H - bonding is reduced by partial replacement of hydroxyl groups, this process involves complex multiple steps and uses toxic chemicals => Conern to Environment
Effect on Nano-filler
1-ethyl-3-methylimidazolium acetate (EMI acetate)
Cellulose pulp paper (Grade V-60) from Buckeye Technologies Inc.
Degree of Polymerization ~ 820
Control cellulose film regenerated from ionic liquid
Experimental and theoretical specific modulus of various PAN/VGCNF composite films assuming the modulus of VGCNF to be 50 GPa. (a) Experimental modulus, (b) theoretical modulus assuming VGCNF length to be 0.2 m, (c) 1 m, (d) 10 m and (e) 100 m.
Electrical conductivity of PAN/VGCNF composite films.
Tan δ (below) as a function of temperature for (a) Control PAN, (b) PAN/5%VGCNF, (c) PAN/10%VGNCF, (d) PAN/20%VGCNF, (e) PAN/40%VGCNF and (f) PAN/90%VGCNF composite films.
Guo, H.; Rasheed, A.; Kumar, Satish J Mater Sci (2008) 43:4363-4369
Incorporation of a nano-filler (SWNT, MWNT, VGCNF) into cellulose matrix is expected to
*Materials Letters 60 (2006) 1710-1713
Hong, L.; Wang Y. L.; Jia, S. R.; Huang, C. G.; Wan, Y. Z. 2005. Hydroxyapatite/bacterial Cellulose Composites Synthesized via Biomimetic Route. Materials Letter. 60:1710-1713
Testing for biocompatibility