Study of melt flow properties and mechanical properties of sulfonated butyl rubber ionomers showed that in the case of lithium ionomer addition of zinc stearate lowered obviously the melt viscosity, represented by torque value of a Brabender rheometer, and enhanced tensile strength of the ionomer up to 25% of zinc stearate, while in the case of ethylamine neutralized ionomer addition of zinc stearate lowered the melt viscosity not so obviously as in the case of lithium ionomer and slightly affected the tensile 0 1990 Hiithig & Wepf Verlag, BaselBei einwertigen Kationen nahm die Schmelzviskositiit und die Zugfestigkeit mit fallendem Ionenpotential ab, bei zweiwertigen sank mit steigendem Ionenpotential und sinkendem covalenten Charakter die Zugfestigkeit, aber es stieg die Schmelzviskositat.Fur die verschiedenen Amine, die zur Neutralisation der Ionomeren verwendet wurden, nahm die Zugfestigkeit in folgenden Reihenfolgen ab: Ethylamin > Triethylamin > Diethylamin; Isopropylamin > Ethylamin > Tertiiirbutylamin > Methylamin; Ethylamin > Hexylamin > Dodecylamin > Octadecylamin.
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