アイオネンポリマーによるドデカン/水エマルションの破壊

概要

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Five ionene polymers (A-A, A-O O-O, Am-A and Am-O), each having one or more groups in the polymer chain among alkylene (A), poly (oxyethylene) (O) and poly (<I>N</I>-methyl-aminoethylene) (Am), and branched (PEImB) polyethyleneimine were prepared. The ability of this polymers to break the dodecane/water emulsion stabilized by <I>p</I>-nonylphenyl poly (oxyethylene) ether (n=10) was evaluated on the basis of the final concentration of dodecane in the waterlayer. The effects of these polymers on demulsification increased in the order of A-A<O-O<A-O<Am-O<Am-A=PEImA=PEImB. Many A-O, Am-A, PEImA and PEImB, containing tertiary amino groups or ether linkages in the main chains, caused reduction in the concentration of dodecane from 2 000 ppm to a trace at their respective optimum dosages. This effect of the ionene polymer is discussed in terms of charge neutralization, polymer bridging effects, and polymer chain structure.
社団法人日本油化学会の論文