Polymermonomer and polymerpolymer interactions and their effect on the stability of emulsifier-free acrylate latexes

On the colloidal stability of polystyrene particles prepared with different kinds of surface active initiators

“…The absolute values of U s are much larger than those of U m and thus contribute much stronger to the overall particle-particle interaction. Such behavior seems to be quite general as similar curves are obtained not only for the other inisurfs but also for poly(alkyl methacrylate) particles prepared with persulfate as initiator by emulsifier-free emulsion polymerization [8][9][10][11].…”

“…For instance, contact angles of 65 and 94 • leads to K a values of 6 × 10 −6 and 14 × 10 −6 dyn, respectively, for Hs = 1 nm. These values were found to be useful to describe the behavior of poly(butyl acrylate) latex particles prepared by emulsifier-free emulsion polymerization [8][9][10]. Considering on the one hand the fact that polystyrene is slightly more hydrophobic than poly(butyl acrylate) and on the other hand the range of contact angels measured, which is between 86 and 73 • (cf.…”

“…As the colloidal stability of latexes is an important issue several investigations with regard to the surface forces of particle-particle interaction have been published considering latexes prepared with "classical" initiators for aqueous emulsion polymerization such as peroxodisulfates [8][9][10][11][12][13]. It turned out that these forces can be used to describe the stability of the latexes not only under the conditions of the polymerization process [8][9][10][11] but also during hydrodynamic [12] and low temperature stresses [13].…”

“…It turned out that these forces can be used to describe the stability of the latexes not only under the conditions of the polymerization process [8][9][10][11] but also during hydrodynamic [12] and low temperature stresses [13].…”

Fabrication of Large-area 3-D Ordered Silver-coated Colloidal Crystals and Macroporous Silver Films Using Polystyrene Templates

“…The insert shows that, therefore, it can be used as a template but also existing some holed defects. During the self-assembly process, keeping a dilute concentration of colloidal crystals will get a strong interaction force between particles, and will contribute to the spontaneous crystallization assisted by electrostatic interaction in the deposition process [19,20]. Meanwhile, the modified microsphere surface with carboxyl group and the functioned hydrogen bond in carboxyl are to enhance the bonding strength between microspheres [21].…”