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Kinetics of Phase Separation in Rigid Rod Polymer and Amorphous Polymer Mixtures

Published online by Cambridge University Press:  26 February 2011

Donald S. Nelson
Affiliation:
University of California at Berkeley, Department of Chemical Engineering, Berkeley, CA 94720
David S. Soane
Affiliation:
University of California at Berkeley, Department of Chemical Engineering, Berkeley, CA 94720
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Abstract

Kinetics of phase separation of PBO in methane sulfonic acid are examined by time-resolved small angle light scattering. Thin films of polymer solutions are spincoated on microscope slides and observed in a controlled environment light scattering cell. These solutions appear to undergo spinodal decomposition, following Cahn- Hilliard type phase separation kinetics upon exposure to water, leading to an exponential increase in the scattered light intensity at short times.

Type
Research Article
Copyright
Copyright © Materials Research Society 1989

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References

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