Abstract
Styrene-divinylbenzene copolymers with porous structures were prepared by seeded suspension polymerization using toluene and heptane as diluents. The influence of each diluent on the formation of porous structure and the swelling ratio was investigated. The styrene-DVB beads are capable of absorption and desorption of organic solvents having solubility parameters in the range of 17.6–19.6 (MPa)1/2. Styrenic imbiber beads were swelled in toluene and the kinetics of absorption was studied. The imbiber bead could absorb toluene completely within 90 min and yielded a maximum swelling ratio of 12.7. The diffusion coefficient values of these beads were in the range of 1.55 × 10−5 to 3.68 × 10−5 cm2 · s−1.
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