Primary alkylphosphine–borane polymers: Synthesis, low glass transition temperature, and a predictive capability thereof

CAVAYE, Hamish, CLEGG, Francis, GOULD, Peter J., LADYMAN, Melissa K., TEMPLE, Tracey and DOSSI, Eleftheria (2017). Primary alkylphosphine–borane polymers: Synthesis, low glass transition temperature, and a predictive capability thereof. Macromolecules, 50 (23), 9239-9248.

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Official URL: http://pubs.acs.org/doi/10.1021/acs.macromol.7b020...
Link to published version:: https://doi.org/10.1021/acs.macromol.7b02030
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    Abstract

    With a multitude of potential applications, poly(phosphine–borane)s are an interesting class of polymer comprising main-group elements within the inorganic polymer backbone. A new family of primary alkylphosphine–borane polymers was synthesized by a solvent-free rhodium-catalyzed dehydrocoupling reaction and characterized by conventional chemicophysical techniques. The thermal stability of the polymers is strongly affected by the size and shape of the alkyl side chain with longer substituents imparting greater stability. The polymers show substantial stability toward UV illumination and immersion in water; however, they undergo a loss of alkylphosphine units during thermal degradation. The polymers exhibit glass transition temperatures (Tg) as low as −70 °C. A group interaction model (GIM) framework was developed to allow the semiquantitative prediction of Tg values, and the properties of the materials in this study were used to validate the model.

    Item Type: Article
    Identification Number: https://doi.org/10.1021/acs.macromol.7b02030
    Page Range: 9239-9248
    Depositing User: Jill Hazard
    Date Deposited: 06 Dec 2017 16:45
    Last Modified: 30 Nov 2018 08:00
    URI: http://shura.shu.ac.uk/id/eprint/17524

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