synthesis of polyvinyl pyridine/c60 conjugates in supercritical carbon dioxide*
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abstract
in the present investigation efforts have been made to synthesis polyvinyl pyridine (pvpy) /c60 conjugatesthrough 2, 2-azobisisobutyronitrile (aibn) initiated insitu polymerization of pvpy in scco2.the processof synthesis was monitored under different reaction conditions ranging 1200-1800psi, 60-90 oc over 6hours. the progress of polymerization was monitored rheoviscometrically. the concentration of pvpyand aibn ranging 6.95-20.85*10-3 and 304.50-931.50 *10-3 afforded pvpy/c60 conjugates in the yield(%) ranging 10.30-48.8. selected pvpy/c60 conjugates were characterized through uv-vis spectra,scanning electron microscopy, gel permeation chromatography and solution rheoviscometery.
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Journal title:
international journal of nanoscience and nanotechnologyPublisher: iranian nano society
ISSN 1735-7004
volume 3
issue 1 2007
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