Journal of Polymer Science: Polymer Chemistry Edition

43, No.21, 1st Nov.2005, p.5312-22

SYNTHESIS OF FLUORINATED OLIGOMERS FOR SUPERCRITICAL CARBON DIOXIDE APPLICATIONS

Bilgin N; Baysal C; Menceloglu Y Z

Sabanci,University

The syntheses of various fluorine-based surfactants for supercritical carbon dioxide media-based applications were achieved by the radical polymerisation of mainly acrylate-based monomers. A difunctional fluorinated initiator was synthesised from 4,4 -azobis-4-cyanovaleric acid and a fluorinated alcohol. It was used for polymerisation reactions carried out to obtain triblock co-oligomers consisting of fluorinated side blocks and a hydrocarbon intermediate block. It was shown experimentally that solubility efficiency was affected by specific interactions between carbon dioxide and the oligomers, which were determined by the nature and the size of the inner block, and by the relative chain length of the fluorinated side blocks. 35 refs.

TURKEY

Accession no.956480