It has been brought to our attention that Figures 2b and 3b in the above article (DOI 10.1002/pi.3170) first published online on 3 October 2011, and in Polym. Int. 61:205–212, had already been published as Figures 1 and 3, respectively, in an article that appeared in Journal of Materials Chemistry (DOI: 10.1039/c1jm12422f).

We hereby take the opportunity to correct the omission to acknowledge the Royal Society of Chemistry as the copyright holders and to thank them for allowing us to reproduce the figures. We apologise for any inconvenience caused.