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A contribution to the study of the effects of chemical heterogeneity on the ultimate properties of copolymer blends

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  • Polymer Science
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Summary

Blends of statistical copolymers of styrene and 2-methoxyethyl methacrylate differing in their chemical heterogeneity were subjected to slow stress-strain experiments. The chemical heterogeneity of blends was chosen so as to be comparable with the chemical heterogeneity of the common high-conversion random copolymers. No pronounced influence of chemical heterogeneity on the copolymer properties under investigation could be observed, if the variance of chemical composition wasD(w)<10−2.

Zusammenfassung

Mischungen statistischer Copolymere von Styrol und 2-Methoxyäthylmethacrylat mit unterschiedlicher chemischer Heterogenität wurden langsamen Spannungs-Dehnungs-Experimenten unterzogen. Die chemische Heterogenität der Mischungen wurde vergleichbar zur chemischen Heterogenität von üblichen Copolymeren mit hohem Umsatz gewählt. Es konnte kein deutlicher Einfluß der chemischen Heterogenität auf die untersuchten Copolymer-Eigenschaften beobachtet werden, wenn die Varianz der chemischen ZusammensetzungD(w)1/4−2 war.

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Stejskal, J., Kratochvil, P. & Hrouz, J. A contribution to the study of the effects of chemical heterogeneity on the ultimate properties of copolymer blends. Colloid & Polymer Sci 257, 931–933 (1979). https://doi.org/10.1007/BF01520716

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  • DOI: https://doi.org/10.1007/BF01520716

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