NDLI: Cyclohexene oxide/carbon dioxide copolymerization by chromium(III) amino-bis(phenolato) complexes and MALDI-TOF MS analysis of the polycarbonates

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Cyclohexene oxide/carbon dioxide copolymerization by chromium(III) amino-bis(phenolato) complexes and MALDI-TOF MS analysis of the polycarbonates

Content Provider	Semantic Scholar
Author	Devaine-Pressing, Katalin Dawe, Louise N. Kozak, Christopher M.
Copyright Year	2015
Abstract	Amine-bis(phenolate) chromium(III) chloride complexes 1·THF, 2·THF and 1·DMAP catalyze the copolymerization of cyclohexene oxide and carbon dioxide. These catalysts incorporate tetradentate amine-bis(phenolate) ligands [L1] and [L2], (where [L1] = 2-pyridyl-N,N-bis(2-methylene-4-methoxy-6-tert-butylphenolato) and [L2] = dimethylaminoethylamino-N,N-bis(2-methylene-4-methoxy-6-tert-butylphenolato)) and when combined with 4-(N,N-dimethylamino)pyridine (DMAP) or bis(triphenylphosphoranylidene)ammonium chloride or azide (PPNCl or PPNN3), yield low molecular weight polycarbonate with narrow dispersities. The structure of 1·DMAP incorporates one molecule of 4-(N,N-dimethylamino)pyridine (DMAP) and can be used as a single-component catalyst precursor. Polymer end group analysis by MALDI-TOF mass spectrometry reveals possible initiation pathways.
Starting Page	6305
Ending Page	6315
Page Count	11
File Format	PDF HTM / HTML
DOI	10.1039/C5PY01028D
Volume Number	6
Alternate Webpage(s)	https://pubs.rsc.org/en/content/articlepdf/2015/py/c5py01028d
Alternate Webpage(s)	http://www.rsc.org/suppdata/c5/py/c5py01028d/c5py01028d1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C5PY01028D
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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