Polymeric surfactants

Details Polymeric surfactants Polymeric surfactants

C - Chemistry, Metallurgy

08

F

402/1

C08F 38/00 (2006.01) B01F 17/00 (2006.01) C07C 57/18 (2006.01)

Patent

CA 1338834

Crosslinked, star-shaped polymeric surfactants in particular those having at least two unsaturated moieties in the hydrocarbon chain, one forming a terminal group or a group derived thereof containing a methyl or ethyl group at the terminal carbon atom, whilst the polar group of the surfactant is connected to the last carbon atom at the other end of the hydrocarbon chain. The polymeric surfactants can be prepared by polymerizing a monomeric surfactant as hereinbefore described in a polar solvent, wherein said surfactant is present in a concentration higher than its critical aggregate concentration, at the temperature of polymerization. The crosslinked polymeric surfactants or their derivatives can be used in various physical and chemical processes, for example as phase transfer catalysts.

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