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Surface Structural Characterization and Mechanical Testing by Nanoindentation Measurements of Hybrid Polymer/clay Nanostructured Multilayer Films

Published online by Cambridge University Press:  31 January 2011

Xiaowu Fan ,
Mi-Kyoung Park ,
Chuanjun Xia  and
Rigoberto Advincula
Xiaowu Fan
Affiliation:
Alabama Tri-campus Materials Science Program and Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294–1240
Mi-Kyoung Park
Affiliation:
Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294–1240
Chuanjun Xia
Affiliation:
Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294–1240
Rigoberto Advincula*
Affiliation:
Alabama Tri-campus Materials Science Program and Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama 35294–1240
*
a)Address all correspondence to this author.
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Abstract

Nanostructured montmorillonite/poly(diallyldimethylammonium chloride) multilayer thin films were fabricated up to 100 layers thick by stepwise alternating polyelectrolyte and clay deposition from solution. The structure and morphology of the films were characterized by x-ray diffraction, ellipsometry, atomic force microscopy, and quartz crystal microbalance ex situ and in situ measurements. The mechanical properties were tested by nanoindentation. The hardness of the multilayer thin film was 0.46 GPa. The thin film's modulus was correlated to its ordering and anisotropic structure. Both hardness and modulus of this composite film were higher than those of several other types of polymer thin films.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 7 , July 2002 , pp. 1622 - 1633
Copyright
Copyright © Materials Research Society 2002

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