| 摘要 |
Oil-in-water emulsion polymerisation carried out in the presence of emulsifiers that are polyoxyethylene half ester of vic-dicarboxylic acids give latices that are stable especially to coagulation by electrolytes, shear and/or freezing. Particularly suitable emulsifiers are of the formulae (I): Y.OOC.(HR)C.C(HR1).COO.(AO)n.R2 or (II) Y.OOC.(HR)C.C(HR1).COO.(AO)n.CO.(HR1)C.C(HR)COO.Y where: R, R1, AO, n, R2 and Y are as defined, in particular where the emulsifiers are polyoxyethylene half esters of alkenyl succinic acids.
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