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Diffusional aspects for the chlorination of the sulfonated poly(styrene‐co‐divinylbenzene) resin beads
Author(s) -
Ihm SonKi,
Ahn JouHyeon,
Widdecke Hartmut,
Struß Klaus,
Klein Joachim
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070370109
Subject(s) - divinylbenzene , styrene , diffusion , thermal diffusivity , chemical engineering , materials science , bead , polymer chemistry , permeation , copolymer , chlorine , electron microprobe , microparticle , chemistry , analytical chemistry (journal) , chromatography , membrane , polymer , organic chemistry , thermodynamics , composite material , biochemistry , physics , metallurgy , engineering
The diffusional process in the chlorination of sulfonated poly(styrene‐co‐divinylbenzene) bead was investigated through a general model as well as direct observation with electron microprobe. Two modes of diffusion, namely the pore diffusion and gelular permeation, were analyzed by two system parameters through a two‐phase model. The effective pore and gelular diffusivities estimated from the x‐ray energy‐dispersive analysis data on the chlorine profile and the conversion suggest that, even for the same crosslinking, the diffusivity of chlorine in the gelular bead is larger by several orders of magnitude than that for the gelular microparticle in the macroreticular bead.