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On the Scale of Diffusion Lengths Observable by Neutron Reflection: Application to Polymers.

Published online by Cambridge University Press:  22 February 2011

A. Karim ,
A. Mansour  and
G.P. Felcher
A. Karim
Affiliation:
Argonne National Laboratory, Argonne, IL 60439, T.P. Russell, IBM Research Division, Almaden Research Center, San Jose, CA 95120
A. Mansour
Affiliation:
Argonne National Laboratory, Argonne, IL 60439, T.P. Russell, IBM Research Division, Almaden Research Center, San Jose, CA 95120
G.P. Felcher
Affiliation:
Argonne National Laboratory, Argonne, IL 60439, T.P. Russell, IBM Research Division, Almaden Research Center, San Jose, CA 95120
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Abstract

A systematic approach has been applied to neutron reflectivity data to study interdiffusion across an interface. It is shown that with this technique it is possible to probe interface broadening from ∼10Å to upward of 200 Å, the upper limit being already within the range of observation of other techniques such as Rutherford backscattering spectrometry (RBS), forward recoil spectrometry (FRES) and secondary ions massspectroscopy (SIMS). As example is analyzed the interdiffusion of a bilayered polymer system: a deuterated polystyrene (d-PS) layer on protonated polystyrene (h-PS).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 171: Symposium O – Polymer Based Molecular Composites , 1989 , 329
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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