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Structure of Charged Polymer Chains in Confined Geometry

Published online by Cambridge University Press:  21 March 2011

Elliot P. Gilbert ,
Loïc Auvray  and
Jyotsana Lal
Elliot P. Gilbert
Affiliation:
Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, IL 60439, U.S.A
Loïc Auvray
Affiliation:
Laboratoire Leon Brillouin, Centre d'Etudes de Saclay, Gif-sur-Yvette Cedex, France
Jyotsana Lal
Affiliation:
Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne, IL 60439, U.S.A
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Abstract

The intra- and interchain structure of sodium poly(styrenesulphonate) when free and when confined in contrast matched porous Vycor has been investigated by SANS. When confined, a peak is observed whose intensity increases with molecular weight and the 1/q scattering region is extended compared to the bulk. We infer that the chains are sufficiently extended, under the influence of confinement, to highlight the large scale disordered structure of Vycor. The asymptotic behavior of the observed interchain structure factor is ≍ 1/q2 and ≍ 1/q for free and confined chains respectively.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 651: Symposium T – Dynamics in Small Confining Systems V , 2000 , T1.3.1
Copyright
Copyright © Materials Research Society 2001

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