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Pigment dispersions containing dispersants having pendent hydrophobic polymeric segments prepared by controlled radical polymerization
Pigment dispersions containing dispersants having pendent hydrophobic polymeric segments prepared by controlled radical polymerization
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机译：含有分散剂的颜料分散体，该分散剂具有通过受控的自由基聚合制备的侧链疏水性聚合物链段
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摘要
A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by polymerizing (i) at least one prepolymer having a radically polymerizable group, and (ii) at least one second monomer. The prepolymer is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of at least one radically polymerizable first monomer. The second monomer forms a polymeric backbone segment of the pigment dispersant, and the prepolymer forms polymeric segments that are pendent to the backbone. The backbone segment of the pigment dispersant is hydrophilic, while at least a portion of each pendent polymeric segment is hydrophobic.
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