Characterization of polyurethane-urea/montmorillonite nanocomposites using XRD and μ-Raman
Keywords:raman, polyurethane-urea, clay, montmorillonite, nanocomposite
In this paper, we used a copolymer of polyurethane urea (PUU) and modified montmorillonite (MMT) to obtain its corresponding nanocomposite. The modified silicate was exfoliated in the PUU matrix using an intercalation technique for solution and subsequently characterized by X-ray diffraction (XRD) and μ-Raman spectroscopy. With micro-Ramanspectroscopy characteristic modes of both the modified clay and the PUUwere identified. The most important ones in the modified clay were two intense peaks located at 2.850 and 2.884cm-1 for the vibrational mode of -CH2- group. The 800-600 cm-1 vibrational modes corresponding to Si-O-Si connected to the SiO4tetrahedron and it is the vibrational mode of control of clay located around 707cm-1. PUU modes could be identified and associated with the bands at 1.640 and 1.716 cm-1 carbonyl group of urea and urethane respectively.
The nanocomposite changes were observed in the intensity of the vibrational modes of the ether group symmetric and asymmetric (912 cm-1 and 1.200 cm-1), by incorporation of clay in these phases. By XRD it was determined that the modified clay presented an exfoliation morphology within an amorphous matrix.
M. McKee, T. Park, S. Unal, I. Yilgor, T. E. Long. “Electrospinning of linear and highly branched segmented poly(urethane urea)s”. Polymer. Vol. 46. 2005. pp. 2011-2015.
J. T. Garrett, J. S. Lin, J. Runt. “Influence of Preparation Conditions on Microdomain Formation in Poly(urethane urea) Block Copolymers”. Macromolecules. Vol. 35. 2002. pp. 161-168.
M. O’Sickey, B. D. Lawrey, G. L. Wilkes. “Structure– Property Relationships of Poly(urethane urea)s with Ultra-low Monol Content Poly(propylene glycol) Soft Segments. I. Influence of Soft Segment Molecular Weight and Hard Segment Content”. Journal of Applied Polymer Science. Vol. 84. 2002. pp. 229-243.
R. Xu, E. Manias, A. J. Snyder, J. Runt. “New Biomedical Poly(urethane urea)-Layered Silicate Nanocomposites”. Macromolecules. Vol. 34. 2001. pp. 337-339.
R. Xu, E. Manias, A. J. Snyder, J. Runt. “Low permeability biomedical polyurethane nanocomposites”. Journal of Biomedial Materials Research. Vol. 64. 2003. pp. 114-119.
K. J. Yao, M. Song, D. J. Hourston, D. Z. Luo. “Polymer / layered clas nanocomposites: 2 polyurethane nanocomposites”. Polymer. Vol. 43. 2002. pp. 1017-1020.
U. Seah. Biomedical Polyurethane Nanocomposites Via Nanofiller Modification. Ph.D Thesis. University of Queensland. Department of Chemical Engineering. Queensland. 2004. pp. 1-49.
X. Cao, L. J. Lee, T. Widya, C. Macosko. “Polyurethane/ clay nanocomposites foams: processing, structure and properties”. Polymer. Vol. 46. 2005. pp. 775-783.
J. W. Gilman, C. L. Jackson, A. B. Morgan, R. Harris, E. P. Giannelis, E. Manias, D. Hilton, M. Wuthenow, S. H. Phillips. “Flammability Properties of Polymer- Layered-Silicate Nanocomposites. Polypropylene and Polystyrene Nanocomposites”. Chemistry of Materials. Vol. 12. 2000. pp. 1866-1873.
Y. I. Tien, K. H. Wei. “High-Tensile-Property Layered Silicates/Polyurethane Nanocomposites by Using Reactive Silicates as Pseudo Chain Extenders”. Macromolecules. Vol. 34. 2001. pp. 9045-9052.
J. Xiong, Z. Zheng, H. Jiang, S. Ye, X. Wang. “Reinforcement of polyurethane composites with an organically modified montmorillonite”. Composites Part A: Applied Science and Manufacturing. Vol. 38. 2007. pp. 132-137.
F. Chavarria, D. R. Paul. “Morphology and properties of thermoplastic polyurethane nanocomposites: Effect of organoclay structure”. Polymer. Vol. 47. 2006. pp. 7760-7773.
N. Luo, D. N. Wang, S. K. Ying. “Phase Separation in Segmented Poly (urethane urea) Copolymers during Reaction Injection Molding (RIM) Polymerization”. Journal of Polymer Science Part B: Polymer Physics. Vol. 35. 1997. pp. 865-873.
S. Parnell, M. Cakmak, K. Min. “Kinetic studies of polyurethane polymerization with Raman spectroscopy”. Polymer. Vol. 44. 2003. pp. 5137-5144.
S. Parnell, K. Min. “Reaction kinetics of thermoplastic polyurethane polymerization in situ with poly (vinyl chloride)”. Polymer. Vol. 46. 2005. pp. 3649-3660.
R. L. Frost, L. Rintoul. “Lattice vibrations of montmorillonite: an FT Raman and X-ray diffraction study”. Applied Clay Science. Vol. 11. 1996. pp. 171-183.
S. Zhang, Z. Ren, S. He, Y. Zhu, C. Zhu. “FTIR spectroscopic characterization of polyurethane-urea model hard segments (PUUMHS) based on three diamine chain extenders”. Spectrochimica Acta Part A. Vol. 66. 2007. pp. 188-193.
D. K. Chattopadhyay, B. Sreedhar, K. V. S. N. Raju. “The phase mixing studies on moisture cured polyurethane-ureas during cure”. Polymer. Vol. 47. 2006. pp. 3814-3825.
F. Yeh, B. S. Hsiao, B. B. Sauer, S. Michel, H. W. Siesler. “In-Situ Studies of Structure Development during Deformation of a Segmented Poly(urethane-urea) Elastomer”. Macromolecules. Vol. 36. 2003. pp. 1940-1954.
B. Stuart. Polymer Analysis. Ed. John Wiley and Sons. New York. Vol. 1. 2002. pp. 275-279.
R. A. Nyquist. Interpreting Infrared, Raman, and Nuclear Magnetic Resonance Spectra. Ed. Academic Press. San Diego (CA). Vol. 2. 2001. pp. 609-621.
N. Cordeiro, M. N. Belgacem, A. Gandini, C. P. Neto. “Urethanes and polyurethanes from suberin: 1. Kinetic study”. Industrial Crops and Products. Vol. 6. 1997. pp. 163-167.
I. Yilgor, E. Yilgor, I. G. Guler, T. C. Ward, G. L. Wilkes. “FTIR investigation of the influence of diisocyanate symmetry on the morphology development in model segmented polyurethanes”. Polymer. Vol. 47. 2006. pp. 4105-4114.
I. Yilgor, B. D. Mather, S. Unal, E. Yilgor, T. E. Long. “Preparation of segmented, high molecular weight, aliphatic poly (ether-urea) copolymers in isopropanol. In-situ FTIR studies and polymer synthesis”. Polymer. Vol. 45. 2004. pp. 5829-5836.
A. Ferry, P. Jacobsson, J. D.V. Heumen, J. R. Stevens. “Raman, infra-red and d.s.c. studies of lithium coordination in a thermoplastic polyurethane”. Polymer. Vol. 37. 1996. pp. 737-744.
C. H. Dan, M. H. Lee, Y. D. Kim, B. H. Min, J. H. Kim. “Effect of clay modifiers on the morphology and physical properties of thermoplastic polyurethane/clay nanocomposites”. Polymer. Vol. 47. 2006. pp. 6718- 6730.
R. A. Vaia, R. K. Teukolsky, E. P. Giannelis. “Interlayer Structure and Molecular Environment of Alkylammonium Layered Silicates”. Chemistry of Materials. Vol. 6. 1994. pp. 1017-1022.
R. A. Vaia, E. P. Giannelis. “Polymer Melt Intercalation in Organically-Modified Layered Silicates: Model Predictions and Experiment”. Macromolecules. Vol. 30. 1997. pp. 8000-8009.
B. Finnigan, D. Martin, P. Halley, R. Truss, K. Campbell. “Morphology and properties of thermoplastic polyurethane nanocomposites incorporating hydrophilic layered silicates”. Polymer. Vol. 45. 2004. pp. 2249-2260.
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