The dynamic and tensile properties of Brabender mixed, compression-molded miscible, and unreacted polyhydroxy ether of bisphenol A (Ph)/Hytrel blends were studied. Blending mainly produced a decrease in the specific volume, and in the strength of the β transition of Ph. The β transition strength decrease was attributed to both specific interactions and specific volume decrease. The measured modulus of elasticity, yield stress, and ductility of the blends were discussed as a result of the combined effect of the β transition strength decrease, crystallinity, and free volume content changes, and the position of the Tgs of the blends with respect to the testing temperature.
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Gaztelumendi et al. (1999) studied this question.
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