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Ultrasonic Monitoring of Polymer Properties from the Melt to the Solid State: Influence of Chemical/Structural Details

Published online by Cambridge University Press:  21 February 2011

L. Piché ,
G. Lessard ,
F. Massines  and
A. Hamel
L. Piché
Affiliation:
Industrial Materials Research Institute, National Research Council Canada, 75 De Mortagne Blvd, Boucherville, Québec, Canada J4B 6Y4
G. Lessard
Affiliation:
Industrial Materials Research Institute, National Research Council Canada, 75 De Mortagne Blvd, Boucherville, Québec, Canada J4B 6Y4
F. Massines
Affiliation:
Industrial Materials Research Institute, National Research Council Canada, 75 De Mortagne Blvd, Boucherville, Québec, Canada J4B 6Y4
A. Hamel
Affiliation:
Industrial Materials Research Institute, National Research Council Canada, 75 De Mortagne Blvd, Boucherville, Québec, Canada J4B 6Y4
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Abstract

An ultrasonic technique is described for the simultaneous measurement of specific volume, V, sound velocity, v, and attenuation, a, at frequencies between f = 0.5 and f = 15 MHz, in a wide range of temperature (- 150 to + 400°C) and pressure (up to 2 kbars). The results (V,v,a) are translated into a complex modulus, M* = M’ + iM” and analyzed in terms of the thermodynamic state of the material. Typical results for amorphous and semi-crystalline polymers are presented which show that the technique is a probe of the fundamental features of these materials (glass transition, crystallization, melting, molecular structure) which determine processability and end use properties. The method should prove of great interest for quality and process control.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 142: Symposium U – Nondestructive Monitoring of Materials Properties , 1988 , 245
Copyright
Copyright © Materials Research Society 1989

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References

1. Hartmann, B., “Ultrasonic Measurements” in “Methods of Experimental Physics”, eds. Fava, R.A. (Academic Press, New York 1980), Vol.16–C, Chap. 12.1, pp. 59–90.Google Scholar
2. Piché, L. and Massines, F., “Ultrasonic Investigation of Amorphous Polymers (Polystyrene) in a Wide Range of Temperature and Pressure: I - Introduction, Method, Technique and Results”, submitted to J. Polym. Sci.: Polym. Phys. Ed.Google Scholar
3. McSkimin, H.J., “Ultrasonic Methods for Measuring the Mechanical Properties of Liquids and Solids”, in “Physical Acoustics”, ed. Mason, W.P. (Academic Press, New York, 1964), Vo. I–A, Chap. 4, pp. 271–334.Google Scholar
4. Wada, Y. and Yamamoto, K., J. Phys. Soc. Jpn, 11, 887 (1956).CrossRefGoogle Scholar
5. Kono, R., J. Phys. Soc. Jpn, 15, 718 (1960).CrossRefGoogle Scholar
6. Morita, E., Kono, R. and Yoshizaki, H., Jpn, J. Appl. Phys. (1968), 7, 451.CrossRefGoogle Scholar
7. Paddison, G.W., Proc. IEEE Ultrasonics Symposium, 502 (1979).Google Scholar
8. Piché, L., Massines, F., Hamel, A., Néron, C., “Ultrasonic Characterization of Polymers Under Simulated Processing Conditions”, U.S. Patent No.: 4,754,645, Date: Jul. 5, 1988.Google Scholar
9. Ferry, J.D., “Viscoelastic Properties of Polymers” (John Wiley & Sons, New York, 3 rd Edition, 1980).Google Scholar
10. Ward, I.M., “Mechanical Properties of Solid Polymers” (John Wiley & Sons, New York, 1983).Google Scholar
11. Boyer, R.F., “Evidence for Tll and Related Phenomena for Local Structure in the Amorphous State of Polymers” in “Order in the Amorphous “State” of Polymers”, edited by Keinath, S.K., Miller, R.L., Rieke, J.K. (Plenum Press, 1987).Google Scholar
12. Boyer, R.F. “Styrene Polymers, Physical Properties” in “Encyclopedia of Polymer Science and Technology” (John Wiley and Sons, New York, 1970), Vol.13, pp 251–326.Google Scholar
13. Krevelen, D.W. Van, “Properties of Polymers, Their Estimation and Correlation with Chemical Structure” (Elsevier, New York, 1976).Google Scholar