Zinc sulfonated EPDM of high (75 wt%) ethylene content behaves as an i
onic thermoplastic elastomer. Diethylene glycol plasticizes the ionic
domains of zinc sulfonated EPDM, without affecting the hydrocarbon bac
kbone. Studies include measurement of physical properties, processabil
ity studies in a Monsanto processability tester (MPT), dynamic mechani
cal analyses (d.m.a.) and dielectric thermal analyses (d.e.t.a.). Copy
right (C) 1996 Elsevier Science Ltd.