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Micro/Nano Structure and Morphology of Multi-Phase Polymer/Oxide Composites Prepared by Powder Melt Processing

Published online by Cambridge University Press:  24 March 2011

Giorgiana Giancola
Affiliation:
Materials Science and Engineering, Rutgers University, Piscataway, New Jersey 08854.
Richard Lehman
Affiliation:
Materials Science and Engineering, Rutgers University, Piscataway, New Jersey 08854.
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Abstract

Powder polymer processing techniques were evaluated as a means to generate homogeneous immiscible polymer blends without the high residence times at elevated temperature and high shear rates required by extrusion. Using emulsion polymerized and cryogenically jet pulverized PMMA and HDPE powder precursors, blends were prepared with morphologies comparable to extruded blends. Advanced EDS imaging methods combined with SiO2 marker spheres enhanced electron imaging and analysis of all blend phases. These processing methods will be useful in producing polymer blends from fragile polymers, such as those used in biomedical applications, that cannot tolerate the temperature or shear rates of conventional melt processing.

Type
Research Article
Copyright
Copyright © Materials Research Society 2011

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References

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