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Sulfonated poly(ethylene‐ ran ‐styrene) ionomers
Author(s) -
Shim SangYeon,
Weiss RA
Publication year - 2005
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1836
Subject(s) - styrene , ionomer , copolymer , polymer chemistry , materials science , intermolecular force , sulfonate , ethylene , poly ethylene , polymer science , polymer , chemistry , organic chemistry , composite material , molecule , catalysis , sodium , metallurgy
Ionomers were prepared by partially sulfonating the styrene units of a poly(ethylene‐ ran ‐styrene) (ES) copolymer. The metal salt derivatives of sulfonated ES had higher T g , melt viscosity and rubbery modulus than did the parent ES because of the formation of labile, physical crosslinks from intermolecular dipole–dipole associations between metal sulfonate groups. Microphase separation of ion‐rich aggregates with a characteristic size of 3–9 nm also occurred as a result of the strong intermolecular associations. Copyright © 2005 Society of Chemical Industry