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. (In Press)

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

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: 10.1021/acs.macromol.7b02030
Depositing User: Jill Hazard
Date Deposited: 06 Dec 2017 16:45
Last Modified: 11 Dec 2017 01:36
URI: http://shura.shu.ac.uk/id/eprint/17524

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