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Crystallization From Polymer Blends

Published online by Cambridge University Press:  15 February 2011

Richard S. Stein
Richard S. Stein*
Affiliation:
University of Massachusetts, Amherst, MA 01003
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Abstract

Binary polymer blends in which one or both components crystallize have been considered. These May be miscible or immiscible in the amorphous state, and phase separation may occur along with crystallization. The rates of these two processes vary differently with temperature, so the consequent morphology and properties depend upon the temperature history. For Miscible blends, the glass transition temperature depends upon composition. This affects diffusion so that crystallization kinetics varies as composition changes. If only one component crystallizes and the other is rejected, this rejected component diffuses away from the growing crystalline regions in a manner dependent upon the interaction between components.

These phenomena are studied using a variety of techniques such as calorimetry, x-ray diffraction and scattering, and small-angle light and neutron scattering for a number of polymer systems.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 321: Symposium E – Crystallization and Related Phenomena in Amorphous Materials—Ceramics, Metals, Polymers, and Semiconductors , 1993 , 531
Copyright
Copyright © Materials Research Society 1994

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References

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