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Issue 19, 2016

Oligomeric poly(acetalcarbonates) obtained by repolymerisation of paraformaldehyde

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Abstract

The synthesis and characterization of oligomeric poly(acetalcarbonates) obtained with the use of formaldehyde as a sustainable and renewable C1-building block is reported. Our approach involves generating monomeric formaldehyde in situ by depolymerisation of paraformaldehyde and repolymerisation to oligomeric poly(acetalcarbonates) using a bifunctional catalyst combination comprising a Lewis acid and Cs2CO3. Analysis of the chemical structure of the products revealed the presence of oligomeric polyoxymethylene sequences together with carbonate units and oxyethylene units along the polymer chain. The latter units act as zip stoppers, and lead to significant stabilisation of the polymer chains. Terminal OH groups allow for rich follow-up chemistry and render as products interesting bifunctional polymer building blocks.

Graphical abstract: Oligomeric poly(acetalcarbonates) obtained by repolymerisation of paraformaldehyde

Supplementary files

Article information


Submitted
26 Mar 2016
Accepted
08 Jun 2016
First published
08 Jun 2016

Green Chem., 2016,18, 5160-5168
Article type
Paper

Oligomeric poly(acetalcarbonates) obtained by repolymerisation of paraformaldehyde

C. Bizzarri, H. Vogt, G. Baráth, C. Gürtler, W. Leitner and T. E. Müller, Green Chem., 2016, 18, 5160 DOI: 10.1039/C6GC00863A

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