Novel Approach of Evaluating Polymer Nanocomposite Structure by Measurements of the Freezing-Point Depression

A novel experimental approach based on the freezing‐point depression of a solvent in a swollen gel has been developed to characterize the structure of nanocomposites. A higher depression in the freezing point has been related with an exfoliated nanocomposite. This increased depression not only depen...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2004-07, Vol.25 (14), p.1309-1313
Main Authors: López-Manchado, Miguel A., Valentín, Juan L., Herrero, Berta, Arroyo, Miguel
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
freezing-point depression
nanocomposites
organoclay
Polymer industry, paints, wood
rubber
Technology of polymers
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Summary:A novel experimental approach based on the freezing‐point depression of a solvent in a swollen gel has been developed to characterize the structure of nanocomposites. A higher depression in the freezing point has been related with an exfoliated nanocomposite. This increased depression not only depends on the formation of a tighter network but also on the decrease of the size of the solvent cages where the nucleation takes place. The nucleation process of unfilled and organoclay‐filled natural rubber with the same crosslinking density.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200400148