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Properties of some polysilane polymers: (n-PrSiMe) n , (i-PrSiMe) n , and (sec-BuSiMe) n

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Abstract

Three polysilane polymers, (n-PrSiMe) n , (i-PrSiMe) n , and (sec-BuSiMe) n , were synthesized and characterized by DSC. UV spectroscopy, wide-angle X-ray diffraction, and optical microscopy, all at variable temperatures. The known thermochromic transition of (n-PrSiMe) n at ∼48 C is associated with a change from an orthorhombic to an isotropic phase. (i-PrSiMe) n was examned as an insoluble and soluble (lowM w) fraction, both existing mainly in an orthohombic lattice at room temperature. (sec-BuSiMe) n has a mesophase structure at 25 C, undergoes a weak endothermic transition to a second (nematic) mesophase near 65 C, and becomes isotropic at ∼160 C.

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Authors and Affiliations

  1. Department of Chemistry, University of Wisconsin, 53706, Madison, Wisconsin

    Tetsuya Asuke & Robert West

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  1. Tetsuya Asuke
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  2. Robert West
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Dedicated to the memory of Professor Zygmunt Lasocki, a fine chemist and a kind and gentle person.

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Asuke, T., West, R. Properties of some polysilane polymers: (n-PrSiMe) n , (i-PrSiMe) n , and (sec-BuSiMe) n . J Inorg Organomet Polym 5, 31–42 (1995). https://doi.org/10.1007/BF01157521

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  • DOI: https://doi.org/10.1007/BF01157521

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