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Synthesis and characterization of novel well-defined stars consisting of eight polyisobutylene arms emanating from an octa(dimethylsiloxy)octasilsesquioxane core

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Abstract

The synthesis and characterization of novel stars, octa(polyisobutylenedimethylsiloxy)octasilsesquioxane (\(T_8 ^{D^{PIB} } \)), consisting of eight polyisobutylene arms emanating from an octa(dimethylsiloxy)octasilsesquioxane (T8 D) core are described. The synthesis involves: 1) The synthesis of allyl-terminated polyisobutylene prearms, 2) The synthesis of octa(hydrodimethylsiloxy)octasilsesquioxane (\(T_8 ^{D^H } \)) precore and 3) Star formation by hydrosilation of with \(T_8 ^{D^H } \). Conditions for the precision synthesis and characterization of well-defined octa-arm stars are described.

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Authors and Affiliations

  1. The Maurice Morton Institute of Polymer Science, The University of Akron, 44325-3909, Akron, OH, USA

    István Majoros, Timea M. Marsalkó & Joseph P. Kennedy

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  1. István Majoros
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  2. Timea M. Marsalkó
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  3. Joseph P. Kennedy
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Additional information

Paper No. VII of the series of “New Polyisobutylene Stars”. For paper No. VI see S. Jacob, I. Majoros, and J. P. Kennedy Macromolecules, in press.

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Majoros, I., Marsalkó, T.M. & Kennedy, J.P. Synthesis and characterization of novel well-defined stars consisting of eight polyisobutylene arms emanating from an octa(dimethylsiloxy)octasilsesquioxane core. Polymer Bulletin 38, 15–22 (1997). https://doi.org/10.1007/s002890050013

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  • DOI: https://doi.org/10.1007/s002890050013

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