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Ftir and Resolved Esca Studies of Segmented Polyether Polyurethanes

Published online by Cambridge University Press:  22 February 2011

G. L. Grobe III ,
Joseph A. Gardella Jr. ,
Roland L. Chin  and
Lawrence Salvati
G. L. Grobe III
Affiliation:
Chemistry Department, State University of New York at Buffalo, Buffalo, NY 14214
Joseph A. Gardella Jr.
Affiliation:
Chemistry Department, State University of New York at Buffalo, Buffalo, NY 14214
Roland L. Chin
Affiliation:
Allied Chemical Corporation, Morristown, NY, 07960
Lawrence Salvati
Affiliation:
Perkin Elmer Corporation, Physical Electronics Division, Edison, NJ 08820
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Abstract

Surface analysis of biomedical materials is necessary for determination of surface structure/biological property relationships. Previous studies [3,6] have demonstrated the applicability of Angle Resolved X-Ray Photoelectron Spectroscopy (ARXPS or ARESCA) and Fourier Transform Infrared Spectroscopy (FT-IR) with Attenuated Total Reflectance (ATR) sampling. Using these surface sensitive techniques on currently marketed segmented polyurethanes (SPU) (Biomer TMand Cardiothane-51TM), we have investigated chemical and morpholgical differences between polymeric mixtures cast from solvents of varying polarity. These materials are used because of their resistance to degradation and hydrolysis.

Results will show: (1) Selective casting of different constituents of the mixture as monitored by FT-IR, where polymers can be represented as opposed to block copolymers; (2) Correlation between the Hildebrand solubility parameter of the casting solvent and the portion of the polymer selectively cast; (3) Models of solution cast polymers will be presented including (concentration gradient) of the constituents; (4) SEM micrographs will provide information on domain size and the formation of these solution cast films; (5) Depths and concentration gradients will be estimated by comparing results from AHXPS and variable angle FT-IR/ATR.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 55: Symposium G – Biomedical Materials , 1985 , 401
Copyright
Copyright © Materials Research Society 1986

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References

REFERENCES

1. Smith, L. M., Gregonis, D. E., Kesseler, T. R., and Coleman, D. L., in Polyurethanes in Biomedical Engineering; edited by Planck, H., Egbers, G., and Syre, I. (Elsevier Science Publishers, New York, 1984) p. 229.Google Scholar
2. Ward, R. S., Nyilas, E., J. Lab. and Clin. Med., 92, 483 (1978).Google Scholar
3. Harrick, N. J., in Internal Refection Spectroscopy, (Wiley Interscience Publishers, New York, 1967) p.49.Google Scholar
4. Grobe, G. L. III, Gardella, J. A. Jr., and Chin, R. L., submitted to J. Biomed. Mater. Res..Google Scholar
5. Burrnell, H., in The Polymer Handbook, edited by Brandup, J., Immergut, E. H. (Wiley Interscience Publishers, New York, 1975) p.IV-337.Google Scholar
6. Gardella, J. A., Grobe, G.L III, Hopson, W. L., Eyring, E. M., Anal. Chem., 56, 1169 (1984).Google Scholar
7. Bicking, M. K. L., Kniseley, R. N., Svec, H. J., Anal. Chem., 55, 200 (1983).Google Scholar
8. Grobe, G. L. III, Gardella, J. A. Jr., Chin, R. L., submitted J. Biomed. Mater. Res..Google Scholar
9. Schmitt, R. L., Gardella, J. A. Jr., Salvati, L. Jr., Macromolecules, accepted.Google Scholar
10. Ratner, B. D., Horbett, T. A., Thomas, H. R., Shuttleworth, D., J. Coll. and Inter. Sci., 83, 630 (1981).CrossRefGoogle Scholar
11. Sung, C. S. P., Hu, C. B., J. Biomed. Mater. Res., 12, 791 (1978).Google Scholar
12. Graham, S. W., Hercules, D. M., J. Biomed. Mater. Res., 15, 349 (1981).Google Scholar
13. Mirbella, P. M. Jr., J. Poly. Sci. (Poly. Phys. Ed.), 23, 861 (1985).Google Scholar