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F. Lembicz, R. Ukielski


Low temperature relaxation processes and electric properties of copoly(ester-ether) elastomer

Polimery 1985, No 3, 105


DOI: dx.doi.org/10.14314/polimery.1985.105

Summary

Electric properties (e', e'' and tg d) of block copoly(ester-ether) elastomer containing 50 wt. % of ollgo(butylene tere- phthalate) blocks have been determined at temperature range 110—190 K (-163 — +17°C). The method of thermally stimulated polarization and depolarization has also been applied. Two relaxation processes, a and b, are described as the glass transition and the process connected with local movements of amorphous domains of flexible segments, respectively.


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