3 years ago
Phosphasalen Indium Complexes Showing High Rates and Isoselectivities in rac-Lactide Polymerizations
Craig M. Forsyth, Mark Bown, Andrew J. P. White, Dominic Myers, Charlotte K. Williams
Polylactide (PLA) is the leading bioderived polymer produced commercially by the metal-catalyzed ring-opening polymerization of lactide. Control over tacticity to produce stereoblock PLA, from rac-lactide improves thermal properties but is an outstanding challenge. Here, phosphasalen indium catalysts feature high rates (30±3 m−1 min−1, THF, 298 K), high control, low loadings (0.2 mol %), and isoselectivity (Pi=0.92, THF, 258 K). Furthermore, the phosphasalen indium catalysts do not require any chiral additives.
New on the block: Phosphasalen indium complexes are fast and stereoselective catalysts allowing production of stereoblock polylactide from racemic lactide (rac-LA; Pi=0.92). The catalysts do not feature any chiral additives and operate by chain-end control mechanisms.
Publisher URL: http://onlinelibrary.wiley.com/resolve/doi
DOI: 10.1002/anie.201701745
You might also like
Never Miss Important Research
Researcher is an app designed by academics, for academics. Create a personalised feed in two minutes.
Choose from over 15,000 academics journals covering ten research areas then let Researcher deliver you papers tailored to your interests each day.
Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.