Abstract
A series of monopyrrolidine metal complexes have been prepared with the aim of elucidating structure-to-activity relationships for the ROP of lactide. Complexes of Li(I), Mg(II), Zn(II) and Zr(IV) were synthesised and fully characterised. Structural comparisons are made to the bipyrrolidine analogues. These monopyrrolidine complexes were found to be active towards the ROP of lactide under both solution and melt conditions. The zirconium complexes were found to have reduced and opposing stereocontrol compared to the bipyrrolidine analogues. The zinc and magnesium complexes demonstrated good activity and control under immortal polymerisation conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 319-325 |
| Number of pages | 7 |
| Journal | European Polymer Journal |
| Volume | 114 |
| Early online date | 1 Mar 2019 |
| DOIs | |
| Publication status | Published - 1 May 2019 |
Funding
We are grateful to the University of Bath for funding. We also acknowledge funding (PM) from the EPRSC ( EP/P01640511 ). All the data is available in the contained supporting information: Full experimental data, including ligand, complex, and polymer characterisation data, are given in the supporting information. Crystallographic data CCDC numbers 1889934-1889939 contains the necessary data. Appendix A
Keywords
- Initiators
- Lactide
- ROP
ASJC Scopus subject areas
- General Physics and Astronomy
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry