Poly(N-vinylcaprolactam)-C60 Complexes in Aqueous Solution

The structure of first synthesized Poly(N-vinylcaprolactam)-C 60 complexes in aqueous solution has been investigated by neutron small-angle scattering in the temperature range of 20-40°C around the coil-globule transition (T C ∼ 32°C). A strong action of linked fullerenes on polymer conformation is...

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Bibliographic Details
Published in:Fullerenes, nanotubes, and carbon nanostructures nanotubes, and carbon nanostructures, 2008-09, Vol.16 (5-6), p.603-609
Main Authors: Lebedev, V. T., Török, Gy, Melenevskaya, E. Yu, Vinogradova, L. V., Ivanova, I. N.
Format: Article
Language:English
Subjects:
Fullerene
Neutron
Polymer
Scattering
Online Access:Get full text
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Summary:The structure of first synthesized Poly(N-vinylcaprolactam)-C 60 complexes in aqueous solution has been investigated by neutron small-angle scattering in the temperature range of 20-40°C around the coil-globule transition (T C ∼ 32°C). A strong action of linked fullerenes on polymer conformation is revealed far below the critical region (T ∼ T C ). The complex even at 20°C exists in globular state. Polymer concentration in globule is increased by one order in magnitude as compared to this one in a coil. Along with a condensation of macromolecule to globular structure, the fullerenes stabilize a stretched chain conformation at segmental scale. The structural peculiarities of fullerene-polymer complex are expected to be useful for complexes' biological and medical applications assuming the C 60 antiviral activity.
ISSN:1536-383X
1536-4046
DOI:10.1080/15363830802312958