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Optical properties of some isoprene-styrene networks cross-linked through metal-acetylacetonate chelation

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Summary

A styrene-isoprene random copolymer containing 80 mol % isoprene, and acetylacetonate groups attached to some of the styrene repeat units was cross-linked by chelation of these groups with a Pd(II) salt. The resulting elastomers were studied in both the unswollen state and swollen with the relatively symmetrical solvent 1,2,4-trichlorobenzene. Their birefringence-strain isotherms were found to be highly reversible, with deviations from linearity due to limited chain extensibility being even more marked than those exhibited by the stress. The stress-optical coefficient obtained is close to that previously reported for natural rubber, as might be expected.

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Author notes

  1. Y. -P. Ning

    Present address: Shangdong Institute of Chemical Engineering, Quindao City, People's Republic of China

Authors and Affiliations

  1. Department of Chemistry and the Polymer Research Center, The University of Cincinnati, 45221, Cincinnati, OH, USA

    Y. -P. Ning & J. E. Mark

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  1. Y. -P. Ning
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  2. J. E. Mark
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Ning, Y.P., Mark, J.E. Optical properties of some isoprene-styrene networks cross-linked through metal-acetylacetonate chelation. Polymer Bulletin 12, 23–27 (1984). https://doi.org/10.1007/BF00258267

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  • DOI: https://doi.org/10.1007/BF00258267

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