Polystyrene in ethyl benzene

More recently, the existence of a critical coagulation particle volume fraction has been established by Vincent et al. (1980) for polystyrene latices stabilized by poly(oxyethylene) terminally grafted to the particle surface and by Cowell and Vincent (1982a) for physically attached poly(oxyethylene). Bridget (1979) has found that a parallel situation pertains with silica particles sterically stabilized by terminally anchored polystyrene in ethyl benzene. 

The molecular weight dependence of vz for the flocculation of microgel particles by polystyrene in ethyl benzene... 

There exists only fragmentary data in the literature for the experimental dependence of V2 on the particle radius. For example. Table 16.4 shows the data of Clarke and Vincent (1981a) for the floccidation of silica particles, sterically stabilized by polystyrene in ethyl benzene, by free polystyrene of molecular weight ca 7 000. An approximate dependence of V2 on the inverse square root of the particle size is indicated. 

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