Abstract / Description of output
In this paper we expand the scope of catalysts able to mediate the ring opening polymerisation of the phosphonate monomer 2-methyl-1,3,2-dioxaphosphalone-2-oxide. A range of nitrogen bases efficiently catalyse the reaction, each with pKas of 19 or above; lower pKa bases do not ring open the monomer. Aluminium based catalysts supported by salen and salan ligand frameworks also afford exceptional control, with conversions in excess of 99% and dispersities under 1.10. Together, these studies significantly expand the scope of catalysts to prepare this biodegradable, non-toxic, water soluble polymer. Additionally, we report efforts to expand the monomer scope for these catalysts, showing that altering ring structure and substitution can strongly inhibit productive ring opening.
Original language | English |
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Journal | Green Materials |
Volume | 4 |
Issue number | 2 |
Early online date | 14 Jun 2016 |
DOIs | |
Publication status | E-pub ahead of print - 14 Jun 2016 |