5 years ago

Phosphazene base promoted anionic polymerization of n-butyraldehyde

Phosphazene base promoted anionic polymerization of n-butyraldehyde
The polymerization of n-butyraldehyde, via a metal-free organocatalytic anionic polymerization method was successfully conducted with the phosphazene bases P2 -t-Bu and P4 -t-Bu. Well-defined poly(n-butyraldehdye) (PBA), with predictable molar masses and low molar mass dispersities (Ð) were accessed when the polymerization of n-butyraldehyde was promoted by P2 -t-Bu. Effects of important parameters, including initiator/phosphazene base ratio and solvent polarity were assessed. The facile degradability of PBA, under benign conditions, was demonstrated, suggesting potential applications in systems requiring well-defined ‘self-immolative’ polymers, without metal ion contamination.

Publisher URL: www.sciencedirect.com/science

DOI: S0014305717304822

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