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Phase separation in semi-interpenetrating polymer networks based on crosslinked poly(urethane) and linear poly(methyl methacrylate) containing iron, copper, and chromium chelates

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Abstract

Phase separation that occurs during formation of semi-interpenetrating polymer networks of various compositions based on crosslinked poly(urethane) and linear poly(methyl methacrylate) containing 1 wt % iron, copper, and chromium chelates has been studied by the methods of DSC and DMA. It has been shown that, in contrast to chromium chelates, the incorporation of iron and copper β-diketonates into the semi-interpenetrating polymer networks (PU : PMMA = 50 : 50) causes retardation of phase separation owing to high rates of poly(urethane) and poly(methyl methacrylate) formation and the appearance of chelate complexes with both blend components at the interface. A more complete phase separation in metal-containing semi-interpenetrating polymer networks (PU : PMMA = 70 : 30) is associated with the fact that chemical kinetics and complexation processes act in opposite directions. The latter processes prevail, and the influence of the type of metal ion in a chelate that predominantly interacts with PU in the blend is diminished.

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Authors and Affiliations

  1. Institute of Macromolecular Chemistry, National Academy of Sciences of Ukraine, Kharkovskoe sh. 48, Kiev, 02160, Ukraine

    L. F. Kosyanchuk, N. V. Babkina, N. V. Yarovaya, N. V. Kozak & Yu. S. Lipatov

Authors
  1. L. F. Kosyanchuk
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  2. N. V. Babkina
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  3. N. V. Yarovaya
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  4. N. V. Kozak
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  5. Yu. S. Lipatov
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Correspondence to L. F. Kosyanchuk.

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Original Russian Text © L.F. Kosyanchuk, N.V. Babkina, N.V. Yarovaya, N.V. Kozak, Yu.S. Lipatov, 2008, published in Vysokomolekulyarnye Soedineniya, Ser. A, 2008, Vol. 50, No. 4, pp. 666–677.

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Kosyanchuk, L.F., Babkina, N.V., Yarovaya, N.V. et al. Phase separation in semi-interpenetrating polymer networks based on crosslinked poly(urethane) and linear poly(methyl methacrylate) containing iron, copper, and chromium chelates. Polym. Sci. Ser. A 50, 434–443 (2008). https://doi.org/10.1134/S0965545X08040123

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  • DOI: https://doi.org/10.1134/S0965545X08040123

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