Adsorption of polybutadiene terminated with a very polar functional group (T-PBR) on a silica surface from carbon tetrachloride solution has been investigated by using IR spectroscopy and compared with normal polybutadienes (PBR). Carbon tetrachloride is a good solvent for polybutadiene. The adsorbed amount, A, the surface coverage of the silanol groups, and the bound fraction of a polymer chain p were measured. A marked difference in adsorption behavior between T-PBR and PBR polymers was observed. T-PBR has an A and twice as large as those for PBR, while the p value was approximately the same for both polymers. From the chemical structure of the terminal group we can qualitatively interpret the difference in the adsorption behavior by taking into account the preferential adsorption of the terminal polar functional groups over the double-bond groups in polybutadiene chains onto the silanol groups of silica surface.
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