If there are any, they'd probably be discussed in the actual papers and not here. I don't know if the UK is better, but at least in the US, university press releases about this or that research paper are usually garbage.
Does anyone have access to the actual papers?
Georgina L. Gregory, Gabriele Kociok-Köhn and Antoine Buchard
“Polymers from sugars and CO2: ring-opening polymerisation and copolymerisation of cyclic carbonates derived from 2-deoxy-D-ribose”
DOI: 10.1039/C7PY00236J Polymer Chemistry, 2017, 8, 2093-2104
Georgina L. Gregory, Elizabeth M. Hierons, Gabriele Kociok-Köhn, Ram I. Sharma and Antoine Buchard
“CO2-Driven stereochemical inversion of sugars to create thymidine-based polycarbonates by ring-opening polymerisation”
DOI: 10.1039/C7PY00118E Polymer Chemistry, 2017, 8, 1714-1721
Georgina L. Gregory, Liliana M. Jenisch, Bethan Charles, Gabriele Kociok-Köhn, and Antoine Buchard
“Polymers from Sugars and CO2: Synthesis and Polymerization of a d-Mannose-Based Cyclic Carbonate”
DOI: 10.1021/acs.macromol.6b01492 Macromolecules, 2016, 49, 7165-7169
If there are limitations to scaling, they'll probably not spell them out in the papers either. It's unfortunate, but "negative" aspects of one's own results are strongly suppressed in scientific publishing. And I'm not in any way pointing the finger at these particular authors, I'm pretty sure they're excellent scientists, it's just a problem in general.
I had a look around, and the papers aren't on any preprint servers etc. I guess we could violate copyrights, but a better solution might be that someone emails George and asks if she can get the preprints posted somewhere.
They're on Sci-Hub, for the desperate. But, just glancing at them, they look legitimate. ACS especially doesn't accept low quality stuff (including some of my own work..)
Does anyone have access to the actual papers?