The structure of first synthesized Poly(N-vinylcaprolactam)-C60 complexes in aqueous solution has been investigated by neutron small-angle scattering in the temperature range of 20-40C around the coil-globule transition (TC 32C). A strong action of linked fullerenes on polymer conformation is revealed far below the critical region (T TC). The complex even at 20C 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 C60 antiviral activity.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Physical and Theoretical Chemistry
- Organic Chemistry