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Styrene‐divinylbenzene copolymers. VII. Stability of the porous structures formed in toluene — cyclohexanol mixtures

1988; Wiley; Volume: 157; Issue: 1 Linguagem: Inglês

10.1002/apmc.1988.051570102

1522-9505

Oǧuz Okay,

Conducting polymers and applications

Abstract The pore stability of styrene‐divinylbenzene (S‐DVB) copolymers prepared in toluene‐cyclohexanol mixtures as inert diluents was investigated as a function of the DVB concentration, diluent composition, and dilution. The stability of the porous structures increases with increasing DVB concentration and, to some extent, with increasing dilution. At a fixed degree of equilibrium volume swelling in toluene, the pore stability also increases with increasing with increasing solvating power of the diluent. The density of S‐DVB copolymers increases during the sulfonation reaction with chlorosulfonic acid, but the stability of porosity remains unchanged.