SynopsisThe effects of inert solvent concentration of crosslinking agent and initiator and polymerization temperature on specific surface area, porosity, penetration modulus, stress a t break, and inner and surface morphology of the copolymer glycidyl methacrylate-ethylene dimethacrylate were investigated. There is a direct influence of interfacial tension between the continuous and dispersed phases in suspension a t the beginning of polymerization on the morphology of the bead, and hence on the resulting physical characteristics of the structure.

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SynopsisSorbents based on glycidyl methacrylate were used in an investigation of the effect of the type of the suspension stabilizer and of its concentration on the shape, size, and morphology of beads consisting of submicroscopic particles (globules). Of many stabilizers used, only poly(viny1 pyrrolidone) and poly(viny1 alcohol) led to the formation of regular spherical beads with a surface shell. As expected, beads obtained using a stabilizer producing higher interfacial tension poly(viny1 pyrro1idone)-K 90 were much larger. A similar effect may be reached by lowering the concentration of poly(viny1 alcohol), if this lowering is accompanied by a rise in the interfacial tension. Despite this, however, the surface shell was not compact in this relatively narrow range of interfacial tensions.

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