Dielectric relaxation in segmented polyu
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M.G.B. Mahboubian Jones; D. Hayward; R.A. Pethrick
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Article
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1987
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Elsevier Science
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English
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Dielectric relaxation measurements are reported on a series of segmented polyurethane elastomers produced with mixtures of varying 1:3 and 1:4 butanediol as chain extender. The changes observed in the glass transition temperature, activation energies for dipolar relaxation and the nature of the disp